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- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min

Browse Source 
heap optimizations".
 
 - Kuan-Wei Chiu has also sped up the library sorting code in the series
   "lib/sort: Optimize the number of swaps and comparisons".
 
 - Alexey Gladkov has added the ability for code running within an IPC
   namespace to alter its IPC and MQ limits.  The series is "Allow to
   change ipc/mq sysctls inside ipc namespace".
 
 - Geert Uytterhoeven has contributed some dhrystone maintenance work in
   the series "lib: dhry: miscellaneous cleanups".
 
 - Ryusuke Konishi continues nilfs2 maintenance work in the series
 
 	"nilfs2: eliminate kmap and kmap_atomic calls"
 	"nilfs2: fix kernel bug at submit_bh_wbc()"
 
 - Nathan Chancellor has updated our build tools requirements in the
   series "Bump the minimum supported version of LLVM to 13.0.1".
 
 - Muhammad Usama Anjum continues with the selftests maintenance work in
   the series "selftests/mm: Improve run_vmtests.sh".
 
 - Oleg Nesterov has done some maintenance work against the signal code
   in the series "get_signal: minor cleanups and fix".
 
 Plus the usual shower of singleton patches in various parts of the tree.
 Please see the individual changelogs for details.
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Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min
   heap optimizations".

 - Kuan-Wei Chiu has also sped up the library sorting code in the series
   "lib/sort: Optimize the number of swaps and comparisons".

 - Alexey Gladkov has added the ability for code running within an IPC
   namespace to alter its IPC and MQ limits. The series is "Allow to
   change ipc/mq sysctls inside ipc namespace".

 - Geert Uytterhoeven has contributed some dhrystone maintenance work in
   the series "lib: dhry: miscellaneous cleanups".

 - Ryusuke Konishi continues nilfs2 maintenance work in the series

	"nilfs2: eliminate kmap and kmap_atomic calls"
	"nilfs2: fix kernel bug at submit_bh_wbc()"

 - Nathan Chancellor has updated our build tools requirements in the
   series "Bump the minimum supported version of LLVM to 13.0.1".

 - Muhammad Usama Anjum continues with the selftests maintenance work in
   the series "selftests/mm: Improve run_vmtests.sh".

 - Oleg Nesterov has done some maintenance work against the signal code
   in the series "get_signal: minor cleanups and fix".

Plus the usual shower of singleton patches in various parts of the tree.
Please see the individual changelogs for details.

* tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits)
  nilfs2: prevent kernel bug at submit_bh_wbc()
  nilfs2: fix failure to detect DAT corruption in btree and direct mappings
  ocfs2: enable ocfs2_listxattr for special files
  ocfs2: remove SLAB_MEM_SPREAD flag usage
  assoc_array: fix the return value in assoc_array_insert_mid_shortcut()
  buildid: use kmap_local_page()
  watchdog/core: remove sysctl handlers from public header
  nilfs2: use div64_ul() instead of do_div()
  mul_u64_u64_div_u64: increase precision by conditionally swapping a and b
  kexec: copy only happens before uchunk goes to zero
  get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task
  get_signal: hide_si_addr_tag_bits: fix the usage of uninitialized ksig
  get_signal: don't abuse ksig->info.si_signo and ksig->sig
  const_structs.checkpatch: add device_type
  Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"
  dyndbg: replace kstrdup() + strchr() with kstrdup_and_replace()
  list: leverage list_is_head() for list_entry_is_head()
  nilfs2: MAINTAINERS: drop unreachable project mirror site
  smp: make __smp_processor_id() 0-argument macro
  fat: fix uninitialized field in nostale filehandles
  ...
This commit is contained in:
Linus Torvalds 2024-03-14 18:03:09 -07:00
commit e5eb28f6d1
139 changed files with 1053 additions and 767 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/admin-guide/kernel-parameters.txt
View File

@ -4211,6 +4211,7 @@
bit 4: print ftrace buffer
bit 5: print all printk messages in buffer
bit 6: print all CPUs backtrace (if available in the arch)
bit 7: print only tasks in uninterruptible (blocked) state
*Be aware* that this option may print a _lot_ of lines,
so there are risks of losing older messages in the log.
Use this option carefully, maybe worth to setup a

15
Documentation/admin-guide/sysctl/kernel.rst
View File

@ -594,6 +594,9 @@ default (``MSGMNB``).
``msgmni`` is the maximum number of IPC queues. 32000 by default
(``MSGMNI``).
All of these parameters are set per ipc namespace. The maximum number of bytes
in POSIX message queues is limited by ``RLIMIT_MSGQUEUE``. This limit is
respected hierarchically in the each user namespace.
msg_next_id, sem_next_id, and shm_next_id (System V IPC)
========================================================
@ -850,6 +853,7 @@ bit 3 print locks info if ``CONFIG_LOCKDEP`` is on
bit 4 print ftrace buffer
bit 5 print all printk messages in buffer
bit 6 print all CPUs backtrace (if available in the arch)
bit 7 print only tasks in uninterruptible (blocked) state
===== ============================================
So for example to print tasks and memory info on panic, user can::
@ -1274,15 +1278,20 @@ are doing anyway :)
shmall
======
This parameter sets the total amount of shared memory pages that
can be used system wide. Hence, ``shmall`` should always be at least
``ceil(shmmax/PAGE_SIZE)``.
This parameter sets the total amount of shared memory pages that can be used
inside ipc namespace. The shared memory pages counting occurs for each ipc
namespace separately and is not inherited. Hence, ``shmall`` should always be at
least ``ceil(shmmax/PAGE_SIZE)``.
If you are not sure what the default ``PAGE_SIZE`` is on your Linux
system, you can run the following command::
# getconf PAGE_SIZE
To reduce or disable the ability to allocate shared memory, you must create a
new ipc namespace, set this parameter to the required value and prohibit the
creation of a new ipc namespace in the current user namespace or cgroups can
be used.
shmmax
======

2
Documentation/process/changes.rst
View File

@ -30,7 +30,7 @@ you probably needn't concern yourself with pcmciautils.
Program Minimal version Command to check the version
====================== =============== ========================================
GNU C 5.1 gcc --version
Clang/LLVM (optional) 11.0.0 clang --version
Clang/LLVM (optional) 13.0.1 clang --version
Rust (optional) 1.76.0 rustc --version
bindgen (optional) 0.65.1 bindgen --version
GNU make 3.82 make --version

1
MAINTAINERS
View File

@ -15501,7 +15501,6 @@ M: Ryusuke Konishi <konishi.ryusuke@gmail.com>
L: linux-nilfs@vger.kernel.org
S: Supported
W: https://nilfs.sourceforge.io/
W: https://nilfs.osdn.jp/
T: git https://github.com/konis/nilfs2.git
F: Documentation/filesystems/nilfs2.rst
F: fs/nilfs2/

8
Makefile
View File

@ -950,14 +950,6 @@ CC_FLAGS_LTO += -fvisibility=hidden
# Limit inlining across translation units to reduce binary size
KBUILD_LDFLAGS += -mllvm -import-instr-limit=5
# Check for frame size exceeding threshold during prolog/epilog insertion
# when using lld < 13.0.0.
ifneq ($(CONFIG_FRAME_WARN),0)
ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y)
KBUILD_LDFLAGS += -plugin-opt=-warn-stack-size=$(CONFIG_FRAME_WARN)
endif
endif
endif
ifdef CONFIG_LTO

8
arch/arm/include/asm/current.h
View File

@ -18,18 +18,12 @@ static __always_inline __attribute_const__ struct task_struct *get_current(void)
{
struct task_struct *cur;
#if __has_builtin(__builtin_thread_pointer) && \
defined(CONFIG_CURRENT_POINTER_IN_TPIDRURO) && \
!(defined(CONFIG_THUMB2_KERNEL) && \
defined(CONFIG_CC_IS_CLANG) && CONFIG_CLANG_VERSION < 130001)
#if __has_builtin(__builtin_thread_pointer) && defined(CONFIG_CURRENT_POINTER_IN_TPIDRURO)
/*
* Use the __builtin helper when available - this results in better
* code, especially when using GCC in combination with the per-task
* stack protector, as the compiler will recognize that it needs to
* load the TLS register only once in every function.
*
* Clang < 13.0.1 gets this wrong for Thumb2 builds:
* https://github.com/ClangBuiltLinux/linux/issues/1485
*/
cur = __builtin_thread_pointer();
#elif defined(CONFIG_CURRENT_POINTER_IN_TPIDRURO) || defined(CONFIG_SMP)

9
arch/arm64/Kconfig
View File

@ -379,8 +379,8 @@ config BROKEN_GAS_INST
config BUILTIN_RETURN_ADDRESS_STRIPS_PAC
bool
# Clang's __builtin_return_adddress() strips the PAC since 12.0.0
# https://reviews.llvm.org/D75044
default y if CC_IS_CLANG && (CLANG_VERSION >= 120000)
# https://github.com/llvm/llvm-project/commit/2a96f47c5ffca84cd774ad402cacd137f4bf45e2
default y if CC_IS_CLANG
# GCC's __builtin_return_address() strips the PAC since 11.1.0,
# and this was backported to 10.2.0, 9.4.0, 8.5.0, but not earlier
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94891
@ -1387,7 +1387,6 @@ choice
config CPU_BIG_ENDIAN
bool "Build big-endian kernel"
depends on !LD_IS_LLD || LLD_VERSION >= 130000
# https://github.com/llvm/llvm-project/commit/1379b150991f70a5782e9a143c2ba5308da1161c
depends on AS_IS_GNU || AS_VERSION >= 150000
help
@ -2018,8 +2017,6 @@ config ARM64_BTI_KERNEL
depends on !CC_IS_GCC || GCC_VERSION >= 100100
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106671
depends on !CC_IS_GCC
# https://github.com/llvm/llvm-project/commit/a88c722e687e6780dcd6a58718350dc76fcc4cc9
depends on !CC_IS_CLANG || CLANG_VERSION >= 120000
depends on (!FUNCTION_GRAPH_TRACER || DYNAMIC_FTRACE_WITH_ARGS)
help
Build the kernel with Branch Target Identification annotations
@ -2222,7 +2219,7 @@ config STACKPROTECTOR_PER_TASK
config UNWIND_PATCH_PAC_INTO_SCS
bool "Enable shadow call stack dynamically using code patching"
# needs Clang with https://reviews.llvm.org/D111780 incorporated
# needs Clang with https://github.com/llvm/llvm-project/commit/de07cde67b5d205d58690be012106022aea6d2b3 incorporated
depends on CC_IS_CLANG && CLANG_VERSION >= 150000
depends on ARM64_PTR_AUTH_KERNEL && CC_HAS_BRANCH_PROT_PAC_RET
depends on SHADOW_CALL_STACK

1
arch/powerpc/Kconfig
View File

@ -333,7 +333,6 @@ config PANIC_TIMEOUT
config COMPAT
bool "Enable support for 32bit binaries"
depends on PPC64
depends on !CC_IS_CLANG || CLANG_VERSION >= 120000
default y if !CPU_LITTLE_ENDIAN
select ARCH_WANT_OLD_COMPAT_IPC
select COMPAT_OLD_SIGACTION

4
arch/powerpc/Makefile
View File

@ -144,11 +144,11 @@ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mlong-double-128)
# Clang unconditionally reserves r2 on ppc32 and does not support the flag
# https://bugs.llvm.org/show_bug.cgi?id=39555
# https://llvm.org/pr39555
CFLAGS-$(CONFIG_PPC32) := $(call cc-option, -ffixed-r2)
# Clang doesn't support -mmultiple / -mno-multiple
# https://bugs.llvm.org/show_bug.cgi?id=39556
# https://llvm.org/pr39556
CFLAGS-$(CONFIG_PPC32) += $(call cc-option, $(MULTIPLEWORD))
CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata)

2
arch/powerpc/kvm/book3s_hv_nested.c
View File

@ -55,7 +55,7 @@ void kvmhv_save_hv_regs(struct kvm_vcpu *vcpu, struct hv_guest_state *hr)
hr->dawrx1 = vcpu->arch.dawrx1;
}
/* Use noinline_for_stack due to https://bugs.llvm.org/show_bug.cgi?id=49610 */
/* Use noinline_for_stack due to https://llvm.org/pr49610 */
static noinline_for_stack void byteswap_pt_regs(struct pt_regs *regs)
{
unsigned long *addr = (unsigned long *) regs;

4
arch/riscv/Kconfig
View File

@ -175,8 +175,6 @@ config RISCV
config CLANG_SUPPORTS_DYNAMIC_FTRACE
def_bool CC_IS_CLANG
# https://github.com/llvm/llvm-project/commit/6ab8927931851bb42b2c93a00801dc499d7d9b1e
depends on CLANG_VERSION >= 130000
# https://github.com/ClangBuiltLinux/linux/issues/1817
depends on AS_IS_GNU || (AS_IS_LLVM && (LD_IS_LLD || LD_VERSION >= 23600))
@ -313,7 +311,7 @@ config AS_HAS_INSN
def_bool $(as-instr,.insn r 51$(comma) 0$(comma) 0$(comma) t0$(comma) t0$(comma) zero)
config AS_HAS_OPTION_ARCH
# https://reviews.llvm.org/D123515
# https://github.com/llvm/llvm-project/commit/9e8ed3403c191ab9c4903e8eeb8f732ff8a43cb4
def_bool y
depends on $(as-instr, .option arch$(comma) +m)

14
arch/riscv/include/asm/ftrace.h
View File

@ -13,16 +13,6 @@
#endif
#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
/*
* Clang prior to 13 had "mcount" instead of "_mcount":
* https://reviews.llvm.org/D98881
*/
#if defined(CONFIG_CC_IS_GCC) || CONFIG_CLANG_VERSION >= 130000
#define MCOUNT_NAME _mcount
#else
#define MCOUNT_NAME mcount
#endif
#define ARCH_SUPPORTS_FTRACE_OPS 1
#ifndef __ASSEMBLY__
@ -30,7 +20,7 @@ extern void *return_address(unsigned int level);
#define ftrace_return_address(n) return_address(n)
void MCOUNT_NAME(void);
void _mcount(void);
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
return addr;
@ -80,7 +70,7 @@ struct dyn_arch_ftrace {
* both auipc and jalr at the same time.
*/
#define MCOUNT_ADDR ((unsigned long)MCOUNT_NAME)
#define MCOUNT_ADDR ((unsigned long)_mcount)
#define JALR_SIGN_MASK (0x00000800)
#define JALR_OFFSET_MASK (0x00000fff)
#define AUIPC_OFFSET_MASK (0xfffff000)

10
arch/riscv/kernel/mcount.S
View File

@ -50,8 +50,8 @@
SYM_TYPED_FUNC_START(ftrace_stub)
#ifdef CONFIG_DYNAMIC_FTRACE
.global MCOUNT_NAME
.set MCOUNT_NAME, ftrace_stub
.global _mcount
.set _mcount, ftrace_stub
#endif
ret
SYM_FUNC_END(ftrace_stub)
@ -80,7 +80,7 @@ SYM_FUNC_END(return_to_handler)
#endif
#ifndef CONFIG_DYNAMIC_FTRACE
SYM_FUNC_START(MCOUNT_NAME)
SYM_FUNC_START(_mcount)
la t4, ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
la t0, ftrace_graph_return
@ -126,6 +126,6 @@ SYM_FUNC_START(MCOUNT_NAME)
jalr t5
RESTORE_ABI_STATE
ret
SYM_FUNC_END(MCOUNT_NAME)
SYM_FUNC_END(_mcount)
#endif
EXPORT_SYMBOL(MCOUNT_NAME)
EXPORT_SYMBOL(_mcount)

2
arch/s390/include/asm/ftrace.h
View File

@ -9,7 +9,7 @@
#ifndef __ASSEMBLY__
#ifdef CONFIG_CC_IS_CLANG
/* https://bugs.llvm.org/show_bug.cgi?id=41424 */
/* https://llvm.org/pr41424 */
#define ftrace_return_address(n) 0UL
#else
#define ftrace_return_address(n) __builtin_return_address(n)

2
arch/sparc/kernel/chmc.c
View File

@ -30,7 +30,7 @@
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "0.2"
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("UltraSPARC-III memory controller driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
arch/sparc/kernel/ds.c
View File

@ -33,7 +33,7 @@
static char version[] =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sun LDOM domain services driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

6
arch/x86/Makefile
View File

@ -221,12 +221,6 @@ endif
KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE)
ifdef CONFIG_LTO_CLANG
ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y)
KBUILD_LDFLAGS += -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8)
endif
endif
ifdef CONFIG_X86_NEED_RELOCS
LDFLAGS_vmlinux := --emit-relocs --discard-none
else

2
arch/x86/power/Makefile
View File

@ -5,7 +5,7 @@
CFLAGS_cpu.o := -fno-stack-protector
# Clang may incorrectly inline functions with stack protector enabled into
# __restore_processor_state(): https://bugs.llvm.org/show_bug.cgi?id=47479
# __restore_processor_state(): https://llvm.org/pr47479
CFLAGS_REMOVE_cpu.o := $(CC_FLAGS_LTO)
obj-$(CONFIG_PM_SLEEP) += cpu.o

2
crypto/blake2b_generic.c
View File

@ -102,7 +102,7 @@ static void blake2b_compress_one_generic(struct blake2b_state *S,
ROUND(10);
ROUND(11);
#ifdef CONFIG_CC_IS_CLANG
#pragma nounroll /* https://bugs.llvm.org/show_bug.cgi?id=45803 */
#pragma nounroll /* https://llvm.org/pr45803 */
#endif
for (i = 0; i < 8; ++i)
S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];

4
drivers/android/binder.c
View File

@ -6086,9 +6086,7 @@ static void print_binder_node_nilocked(struct seq_file *m,
struct binder_work *w;
int count;
count = 0;
hlist_for_each_entry(ref, &node->refs, node_entry)
count++;
count = hlist_count_nodes(&node->refs);
seq_printf(m, " node %d: u%016llx c%016llx hs %d hw %d ls %d lw %d is %d iw %d tr %d",
node->debug_id, (u64)node->ptr, (u64)node->cookie,

2
drivers/block/sunvdc.c
View File

@ -28,7 +28,7 @@
static char version[] =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sun LDOM virtual disk client driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
drivers/char/hw_random/n2-drv.c
View File

@ -29,7 +29,7 @@
static char version[] =
DRV_MODULE_NAME " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Niagara2 RNG driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
drivers/char/tpm/st33zp24/i2c.c
View File

@ -167,7 +167,7 @@ static struct i2c_driver st33zp24_i2c_driver = {
module_i2c_driver(st33zp24_i2c_driver);
MODULE_AUTHOR("TPM support (TPMsupport@list.st.com)");
MODULE_AUTHOR("TPM support <TPMsupport@list.st.com>");
MODULE_DESCRIPTION("STM TPM 1.2 I2C ST33 Driver");
MODULE_VERSION("1.3.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/st33zp24/spi.c
View File

@ -284,7 +284,7 @@ static struct spi_driver st33zp24_spi_driver = {
module_spi_driver(st33zp24_spi_driver);
MODULE_AUTHOR("TPM support (TPMsupport@list.st.com)");
MODULE_AUTHOR("TPM support <TPMsupport@list.st.com>");
MODULE_DESCRIPTION("STM TPM 1.2 SPI ST33 Driver");
MODULE_VERSION("1.3.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/st33zp24/st33zp24.c
View File

@ -582,7 +582,7 @@ int st33zp24_pm_resume(struct device *dev)
EXPORT_SYMBOL(st33zp24_pm_resume);
#endif
MODULE_AUTHOR("TPM support (TPMsupport@list.st.com)");
MODULE_AUTHOR("TPM support <TPMsupport@list.st.com>");
MODULE_DESCRIPTION("ST33ZP24 TPM 1.2 driver");
MODULE_VERSION("1.3.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm-interface.c
View File

@ -524,7 +524,7 @@ static void __exit tpm_exit(void)
subsys_initcall(tpm_init);
module_exit(tpm_exit);
MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
MODULE_AUTHOR("Leendert van Doorn <leendert@watson.ibm.com>");
MODULE_DESCRIPTION("TPM Driver");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm_atmel.c
View File

@ -229,7 +229,7 @@ static void __exit cleanup_atmel(void)
module_init(init_atmel);
module_exit(cleanup_atmel);
MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
MODULE_AUTHOR("Leendert van Doorn <leendert@watson.ibm.com>");
MODULE_DESCRIPTION("TPM Driver");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm_i2c_nuvoton.c
View File

@ -654,6 +654,6 @@ static struct i2c_driver i2c_nuvoton_driver = {
module_i2c_driver(i2c_nuvoton_driver);
MODULE_AUTHOR("Dan Morav (dan.morav@nuvoton.com)");
MODULE_AUTHOR("Dan Morav <dan.morav@nuvoton.com>");
MODULE_DESCRIPTION("Nuvoton TPM I2C Driver");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm_nsc.c
View File

@ -410,7 +410,7 @@ static void __exit cleanup_nsc(void)
module_init(init_nsc);
module_exit(cleanup_nsc);
MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
MODULE_AUTHOR("Leendert van Doorn <leendert@watson.ibm.com>");
MODULE_DESCRIPTION("TPM Driver");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm_tis.c
View File

@ -429,7 +429,7 @@ static void __exit cleanup_tis(void)
module_init(init_tis);
module_exit(cleanup_tis);
MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
MODULE_AUTHOR("Leendert van Doorn <leendert@watson.ibm.com>");
MODULE_DESCRIPTION("TPM Driver");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm_tis_core.c
View File

@ -1360,7 +1360,7 @@ int tpm_tis_resume(struct device *dev)
EXPORT_SYMBOL_GPL(tpm_tis_resume);
#endif
MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
MODULE_AUTHOR("Leendert van Doorn <leendert@watson.ibm.com>");
MODULE_DESCRIPTION("TPM Driver");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");

2
drivers/char/tpm/tpm_vtpm_proxy.c
View File

@ -711,7 +711,7 @@ static void __exit vtpm_module_exit(void)
module_init(vtpm_module_init);
module_exit(vtpm_module_exit);
MODULE_AUTHOR("Stefan Berger (stefanb@us.ibm.com)");
MODULE_AUTHOR("Stefan Berger <stefanb@us.ibm.com>");
MODULE_DESCRIPTION("vTPM Driver");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");

2
drivers/crypto/n2_core.c
View File

@ -41,7 +41,7 @@
static const char version[] =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Niagara2 Crypto driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
drivers/firmware/efi/libstub/Makefile
View File

@ -105,7 +105,7 @@ lib-y := $(patsubst %.o,%.stub.o,$(lib-y))
# Even when -mbranch-protection=none is set, Clang will generate a
# .note.gnu.property for code-less object files (like lib/ctype.c),
# so work around this by explicitly removing the unwanted section.
# https://bugs.llvm.org/show_bug.cgi?id=46480
# https://llvm.org/pr46480
STUBCOPY_FLAGS-y += --remove-section=.note.gnu.property
STUBCOPY_RELOC-$(CONFIG_X86_32) := R_386_32

2
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
View File

@ -612,7 +612,7 @@ static uint32_t sdma_v4_4_2_rb_cntl(struct amdgpu_ring *ring, uint32_t rb_cntl)
/* Set ring buffer size in dwords */
uint32_t rb_bufsz = order_base_2(ring->ring_size / 4);
barrier(); /* work around https://bugs.llvm.org/show_bug.cgi?id=42576 */
barrier(); /* work around https://llvm.org/pr42576 */
rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
#ifdef __BIG_ENDIAN
rb_cntl = REG_SET_FIELD(rb_cntl, SDMA_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);

2
drivers/hwmon/dell-smm-hwmon.c
View File

@ -108,7 +108,7 @@ struct dell_smm_cooling_data {
struct dell_smm_data *data;
};
MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)");
MODULE_AUTHOR("Massimo Dal Zotto <dz@debian.org>");
MODULE_AUTHOR("Pali Rohár <pali@kernel.org>");
MODULE_DESCRIPTION("Dell laptop SMM BIOS hwmon driver");
MODULE_LICENSE("GPL");

2
drivers/hwmon/ultra45_env.c
View File

@ -18,7 +18,7 @@
#define DRV_MODULE_VERSION "0.1"
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Ultra45 environmental monitor driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
drivers/i2c/muxes/i2c-mux-mlxcpld.c
View File

@ -187,7 +187,7 @@ static struct platform_driver mlxcpld_mux_driver = {
module_platform_driver(mlxcpld_mux_driver);
MODULE_AUTHOR("Michael Shych (michaels@mellanox.com)");
MODULE_AUTHOR("Michael Shych <michaels@mellanox.com>");
MODULE_DESCRIPTION("Mellanox I2C-CPLD-MUX driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("platform:i2c-mux-mlxcpld");

2
drivers/leds/leds-sunfire.c
View File

@ -17,7 +17,7 @@
#include <asm/fhc.h>
#include <asm/upa.h>
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sun Fire LED driver");
MODULE_LICENSE("GPL");

8
drivers/md/bcache/sysfs.c
View File

@ -702,13 +702,7 @@ static unsigned int bch_cache_max_chain(struct cache_set *c)
for (h = c->bucket_hash;
h < c->bucket_hash + (1 << BUCKET_HASH_BITS);
h++) {
unsigned int i = 0;
struct hlist_node *p;
hlist_for_each(p, h)
i++;
ret = max(ret, i);
ret = max(ret, hlist_count_nodes(h));
}
mutex_unlock(&c->bucket_lock);

2
drivers/media/common/siano/smscoreapi.c
View File

@ -2155,7 +2155,7 @@ module_init(smscore_module_init);
module_exit(smscore_module_exit);
MODULE_DESCRIPTION("Siano MDTV Core module");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. <uris@siano-ms.com>");
MODULE_LICENSE("GPL");
/* This should match what's defined at smscoreapi.h */

2
drivers/media/common/siano/smsdvb-main.c
View File

@ -1267,5 +1267,5 @@ module_init(smsdvb_module_init);
module_exit(smsdvb_module_exit);
MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. <uris@siano-ms.com>");
MODULE_LICENSE("GPL");

2
drivers/media/dvb-frontends/cx24117.c
View File

@ -1647,7 +1647,7 @@ static const struct dvb_frontend_ops cx24117_ops = {
MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware");
MODULE_AUTHOR("Luis Alves (ljalvs@gmail.com)");
MODULE_AUTHOR("Luis Alves <ljalvs@gmail.com>");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.1");
MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE);

2
drivers/media/test-drivers/vicodec/codec-fwht.c
View File

@ -49,7 +49,7 @@ static const uint8_t zigzag[64] = {
/*
* noinline_for_stack to work around
* https://bugs.llvm.org/show_bug.cgi?id=38809
* https://llvm.org/pr38809
*/
static int noinline_for_stack
rlc(const s16 *in, __be16 *output, int blocktype)

2
drivers/media/usb/siano/smsusb.c
View File

@ -724,5 +724,5 @@ static struct usb_driver smsusb_driver = {
module_usb_driver(smsusb_driver);
MODULE_DESCRIPTION("Driver for the Siano SMS1xxx USB dongle");
MODULE_AUTHOR("Siano Mobile Silicon, INC. (uris@siano-ms.com)");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. <uris@siano-ms.com>");
MODULE_LICENSE("GPL");

2
drivers/net/ethernet/broadcom/tg3.c
View File

@ -221,7 +221,7 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
#define FIRMWARE_TG3TSO "tigon/tg3_tso.bin"
#define FIRMWARE_TG3TSO5 "tigon/tg3_tso5.bin"
MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
MODULE_AUTHOR("David S. Miller <davem@redhat.com> and Jeff Garzik <jgarzik@pobox.com>");
MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_TG3);

2
drivers/net/ethernet/sun/cassini.c
View File

@ -176,7 +176,7 @@ static char version[] =
static int cassini_debug = -1; /* -1 == use CAS_DEF_MSG_ENABLE as value */
static int link_mode;
MODULE_AUTHOR("Adrian Sun (asun@darksunrising.com)");
MODULE_AUTHOR("Adrian Sun <asun@darksunrising.com>");
MODULE_DESCRIPTION("Sun Cassini(+) ethernet driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("sun/cassini.bin");

2
drivers/net/ethernet/sun/niu.c
View File

@ -61,7 +61,7 @@ union niu_page {
static char version[] =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("NIU ethernet driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
drivers/net/ethernet/sun/sunhme.c
View File

@ -59,7 +59,7 @@
#define DRV_NAME "sunhme"
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sun HappyMealEthernet(HME) 10/100baseT ethernet driver");
MODULE_LICENSE("GPL");

2
drivers/net/ethernet/sun/sunvnet.c
View File

@ -44,7 +44,7 @@
static char version[] =
DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sun LDOM virtual network driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

2
drivers/net/ethernet/sun/sunvnet_common.c
View File

@ -39,7 +39,7 @@
*/
#define VNET_MAX_RETRIES 10
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sun LDOM virtual network support library");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.1");

2
drivers/net/ppp/pptp.c
View File

@ -694,6 +694,6 @@ module_init(pptp_init_module);
module_exit(pptp_exit_module);
MODULE_DESCRIPTION("Point-to-Point Tunneling Protocol");
MODULE_AUTHOR("D. Kozlov (xeb@mail.ru)");
MODULE_AUTHOR("D. Kozlov <xeb@mail.ru>");
MODULE_LICENSE("GPL");
MODULE_ALIAS_NET_PF_PROTO(PF_PPPOX, PX_PROTO_PPTP);

2
drivers/platform/x86/compal-laptop.c
View File

@ -1107,7 +1107,7 @@ module_init(compal_init);
module_exit(compal_cleanup);
MODULE_AUTHOR("Cezary Jackiewicz");
MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)");
MODULE_AUTHOR("Roald Frederickx <roald.frederickx@gmail.com>");
MODULE_DESCRIPTION("Compal Laptop Support");
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");

2
drivers/platform/x86/intel/oaktrail.c
View File

@ -365,7 +365,7 @@ static void __exit oaktrail_cleanup(void)
module_init(oaktrail_init);
module_exit(oaktrail_cleanup);
MODULE_AUTHOR("Yin Kangkai (kangkai.yin@intel.com)");
MODULE_AUTHOR("Yin Kangkai <kangkai.yin@intel.com>");
MODULE_DESCRIPTION("Intel Oaktrail Platform ACPI Extras");
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");

2
drivers/platform/x86/mlx-platform.c
View File

@ -6659,6 +6659,6 @@ static void __exit mlxplat_exit(void)
}
module_exit(mlxplat_exit);
MODULE_AUTHOR("Vadim Pasternak (vadimp@mellanox.com)");
MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
MODULE_DESCRIPTION("Mellanox platform driver");
MODULE_LICENSE("Dual BSD/GPL");

2
drivers/regulator/Kconfig
View File

@ -288,7 +288,7 @@ config REGULATOR_CROS_EC
config REGULATOR_DA903X
tristate "Dialog Semiconductor DA9030/DA9034 regulators"
depends on PMIC_DA903X
depends on !CC_IS_CLANG # https://bugs.llvm.org/show_bug.cgi?id=38789
depends on !CC_IS_CLANG # https://llvm.org/pr38789
help
Say y here to support the BUCKs and LDOs regulators found on
Dialog Semiconductor DA9030/DA9034 PMIC.

2
drivers/s390/net/fsm.c
View File

@ -9,7 +9,7 @@
#include <linux/slab.h>
#include <linux/timer.h>
MODULE_AUTHOR("(C) 2000 IBM Corp. by Fritz Elfert (felfert@millenux.com)");
MODULE_AUTHOR("(C) 2000 IBM Corp. by Fritz Elfert <felfert@millenux.com>");
MODULE_DESCRIPTION("Finite state machine helper functions");
MODULE_LICENSE("GPL");

2
drivers/sbus/char/openprom.c
View File

@ -33,7 +33,7 @@
#include <linux/pci.h>
#endif
MODULE_AUTHOR("Thomas K. Dyas (tdyas@noc.rutgers.edu) and Eddie C. Dost (ecd@skynet.be)");
MODULE_AUTHOR("Thomas K. Dyas <tdyas@noc.rutgers.edu> and Eddie C. Dost <ecd@skynet.be>");
MODULE_DESCRIPTION("OPENPROM Configuration Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.0");

2
drivers/scsi/esp_scsi.c
View File

@ -2753,7 +2753,7 @@ static void __exit esp_exit(void)
}
MODULE_DESCRIPTION("ESP SCSI driver core");
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);

2
drivers/scsi/jazz_esp.c
View File

@ -204,6 +204,6 @@ static struct platform_driver esp_jazz_driver = {
module_platform_driver(esp_jazz_driver);
MODULE_DESCRIPTION("JAZZ ESP SCSI driver");
MODULE_AUTHOR("Thomas Bogendoerfer (tsbogend@alpha.franken.de)");
MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);

2
drivers/scsi/mesh.c
View File

@ -54,7 +54,7 @@
#define KERN_DEBUG KERN_WARNING
#endif
MODULE_AUTHOR("Paul Mackerras (paulus@samba.org)");
MODULE_AUTHOR("Paul Mackerras <paulus@samba.org>");
MODULE_DESCRIPTION("PowerMac MESH SCSI driver");
MODULE_LICENSE("GPL");

2
drivers/scsi/qlogicpti.c
View File

@ -1468,7 +1468,7 @@ static struct platform_driver qpti_sbus_driver = {
module_platform_driver(qpti_sbus_driver);
MODULE_DESCRIPTION("QlogicISP SBUS driver");
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_LICENSE("GPL");
MODULE_VERSION("2.1");
MODULE_FIRMWARE("qlogic/isp1000.bin");

2
drivers/scsi/sun3x_esp.c
View File

@ -273,7 +273,7 @@ static struct platform_driver esp_sun3x_driver = {
module_platform_driver(esp_sun3x_driver);
MODULE_DESCRIPTION("Sun3x ESP SCSI driver");
MODULE_AUTHOR("Thomas Bogendoerfer (tsbogend@alpha.franken.de)");
MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
MODULE_ALIAS("platform:sun3x_esp");

2
drivers/scsi/sun_esp.c
View File

@ -608,6 +608,6 @@ static struct platform_driver esp_sbus_driver = {
module_platform_driver(esp_sbus_driver);
MODULE_DESCRIPTION("Sun ESP SCSI driver");
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);

2
drivers/video/fbdev/hgafb.c
View File

@ -670,7 +670,7 @@ static void __exit hgafb_exit(void)
*
* ------------------------------------------------------------------------- */
MODULE_AUTHOR("Ferenc Bakonyi (fero@drama.obuda.kando.hu)");
MODULE_AUTHOR("Ferenc Bakonyi <fero@drama.obuda.kando.hu>");
MODULE_DESCRIPTION("FBDev driver for Hercules Graphics Adaptor");
MODULE_LICENSE("GPL");

6
fs/fat/nfs.c
View File

@ -130,6 +130,12 @@ fat_encode_fh_nostale(struct inode *inode, __u32 *fh, int *lenp,
fid->parent_i_gen = parent->i_generation;
type = FILEID_FAT_WITH_PARENT;
*lenp = FAT_FID_SIZE_WITH_PARENT;
} else {
/*
* We need to initialize this field because the fh is actually
* 12 bytes long
*/
fid->parent_i_pos_hi = 0;
}
return type;

87
fs/nilfs2/alloc.c
View File

@ -525,54 +525,55 @@ int nilfs_palloc_prepare_alloc_entry(struct inode *inode,
ret = nilfs_palloc_get_desc_block(inode, group, 1, &desc_bh);
if (ret < 0)
return ret;
desc_kaddr = kmap(desc_bh->b_page);
desc_kaddr = kmap_local_page(desc_bh->b_page);
desc = nilfs_palloc_block_get_group_desc(
inode, group, desc_bh, desc_kaddr);
n = nilfs_palloc_rest_groups_in_desc_block(inode, group,
maxgroup);
for (j = 0; j < n; j++, desc++, group++) {
for (j = 0; j < n; j++, desc++, group++, group_offset = 0) {
lock = nilfs_mdt_bgl_lock(inode, group);
if (nilfs_palloc_group_desc_nfrees(desc, lock) > 0) {
ret = nilfs_palloc_get_bitmap_block(
inode, group, 1, &bitmap_bh);
if (ret < 0)
goto out_desc;
bitmap_kaddr = kmap(bitmap_bh->b_page);
if (nilfs_palloc_group_desc_nfrees(desc, lock) == 0)
continue;
kunmap_local(desc_kaddr);
ret = nilfs_palloc_get_bitmap_block(inode, group, 1,
&bitmap_bh);
if (unlikely(ret < 0)) {
brelse(desc_bh);
return ret;
}
desc_kaddr = kmap_local_page(desc_bh->b_page);
desc = nilfs_palloc_block_get_group_desc(
inode, group, desc_bh, desc_kaddr);
bitmap_kaddr = kmap_local_page(bitmap_bh->b_page);
bitmap = bitmap_kaddr + bh_offset(bitmap_bh);
pos = nilfs_palloc_find_available_slot(
bitmap, group_offset,
entries_per_group, lock);
if (pos >= 0) {
/* found a free entry */
nilfs_palloc_group_desc_add_entries(
desc, lock, -1);
req->pr_entry_nr =
entries_per_group * group + pos;
kunmap(desc_bh->b_page);
kunmap(bitmap_bh->b_page);
bitmap, group_offset, entries_per_group, lock);
kunmap_local(bitmap_kaddr);
if (pos >= 0)
goto found;
req->pr_desc_bh = desc_bh;
req->pr_bitmap_bh = bitmap_bh;
return 0;
}
kunmap(bitmap_bh->b_page);
brelse(bitmap_bh);
}
group_offset = 0;
}
kunmap(desc_bh->b_page);
kunmap_local(desc_kaddr);
brelse(desc_bh);
}
/* no entries left */
return -ENOSPC;
out_desc:
kunmap(desc_bh->b_page);
brelse(desc_bh);
return ret;
found:
/* found a free entry */
nilfs_palloc_group_desc_add_entries(desc, lock, -1);
req->pr_entry_nr = entries_per_group * group + pos;
kunmap_local(desc_kaddr);
req->pr_desc_bh = desc_bh;
req->pr_bitmap_bh = bitmap_bh;
return 0;
}
/**
@ -606,10 +607,10 @@ void nilfs_palloc_commit_free_entry(struct inode *inode,
spinlock_t *lock;
group = nilfs_palloc_group(inode, req->pr_entry_nr, &group_offset);
desc_kaddr = kmap(req->pr_desc_bh->b_page);
desc_kaddr = kmap_local_page(req->pr_desc_bh->b_page);
desc = nilfs_palloc_block_get_group_desc(inode, group,
req->pr_desc_bh, desc_kaddr);
bitmap_kaddr = kmap(req->pr_bitmap_bh->b_page);
bitmap_kaddr = kmap_local_page(req->pr_bitmap_bh->b_page);
bitmap = bitmap_kaddr + bh_offset(req->pr_bitmap_bh);
lock = nilfs_mdt_bgl_lock(inode, group);
@ -621,8 +622,8 @@ void nilfs_palloc_commit_free_entry(struct inode *inode,
else
nilfs_palloc_group_desc_add_entries(desc, lock, 1);
kunmap(req->pr_bitmap_bh->b_page);
kunmap(req->pr_desc_bh->b_page);
kunmap_local(bitmap_kaddr);
kunmap_local(desc_kaddr);
mark_buffer_dirty(req->pr_desc_bh);
mark_buffer_dirty(req->pr_bitmap_bh);
@ -647,10 +648,10 @@ void nilfs_palloc_abort_alloc_entry(struct inode *inode,
spinlock_t *lock;
group = nilfs_palloc_group(inode, req->pr_entry_nr, &group_offset);
desc_kaddr = kmap(req->pr_desc_bh->b_page);
desc_kaddr = kmap_local_page(req->pr_desc_bh->b_page);
desc = nilfs_palloc_block_get_group_desc(inode, group,
req->pr_desc_bh, desc_kaddr);
bitmap_kaddr = kmap(req->pr_bitmap_bh->b_page);
bitmap_kaddr = kmap_local_page(req->pr_bitmap_bh->b_page);
bitmap = bitmap_kaddr + bh_offset(req->pr_bitmap_bh);
lock = nilfs_mdt_bgl_lock(inode, group);
@ -662,8 +663,8 @@ void nilfs_palloc_abort_alloc_entry(struct inode *inode,
else
nilfs_palloc_group_desc_add_entries(desc, lock, 1);
kunmap(req->pr_bitmap_bh->b_page);
kunmap(req->pr_desc_bh->b_page);
kunmap_local(bitmap_kaddr);
kunmap_local(desc_kaddr);
brelse(req->pr_bitmap_bh);
brelse(req->pr_desc_bh);
@ -755,7 +756,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
/* Get the first entry number of the group */
group_min_nr = (__u64)group * epg;
bitmap_kaddr = kmap(bitmap_bh->b_page);
bitmap_kaddr = kmap_local_page(bitmap_bh->b_page);
bitmap = bitmap_kaddr + bh_offset(bitmap_bh);
lock = nilfs_mdt_bgl_lock(inode, group);
@ -801,7 +802,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
entry_start = rounddown(group_offset, epb);
} while (true);
kunmap(bitmap_bh->b_page);
kunmap_local(bitmap_kaddr);
mark_buffer_dirty(bitmap_bh);
brelse(bitmap_bh);
@ -815,11 +816,11 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
inode->i_ino);
}
desc_kaddr = kmap_atomic(desc_bh->b_page);
desc_kaddr = kmap_local_page(desc_bh->b_page);
desc = nilfs_palloc_block_get_group_desc(
inode, group, desc_bh, desc_kaddr);
nfree = nilfs_palloc_group_desc_add_entries(desc, lock, n);
kunmap_atomic(desc_kaddr);
kunmap_local(desc_kaddr);
mark_buffer_dirty(desc_bh);
nilfs_mdt_mark_dirty(inode);
brelse(desc_bh);

3
fs/nilfs2/bmap.c
View File

@ -548,13 +548,10 @@ int nilfs_bmap_read(struct nilfs_bmap *bmap, struct nilfs_inode *raw_inode)
*/
void nilfs_bmap_write(struct nilfs_bmap *bmap, struct nilfs_inode *raw_inode)
{
down_write(&bmap->b_sem);
memcpy(raw_inode->i_bmap, bmap->b_u.u_data,
NILFS_INODE_BMAP_SIZE * sizeof(__le64));
if (bmap->b_inode->i_ino == NILFS_DAT_INO)
bmap->b_last_allocated_ptr = NILFS_BMAP_NEW_PTR_INIT;
up_write(&bmap->b_sem);
}
void nilfs_bmap_init_gc(struct nilfs_bmap *bmap)

9
fs/nilfs2/btree.c
View File

@ -724,7 +724,7 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *btree,
dat = nilfs_bmap_get_dat(btree);
ret = nilfs_dat_translate(dat, ptr, &blocknr);
if (ret < 0)
goto out;
goto dat_error;
ptr = blocknr;
}
cnt = 1;
@ -743,7 +743,7 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *btree,
if (dat) {
ret = nilfs_dat_translate(dat, ptr2, &blocknr);
if (ret < 0)
goto out;
goto dat_error;
ptr2 = blocknr;
}
if (ptr2 != ptr + cnt || ++cnt == maxblocks)
@ -781,6 +781,11 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *btree,
out:
nilfs_btree_free_path(path);
return ret;
dat_error:
if (ret == -ENOENT)
ret = -EINVAL; /* Notify bmap layer of metadata corruption */
goto out;
}
static void nilfs_btree_promote_key(struct nilfs_bmap *btree,

319
fs/nilfs2/cpfile.c
View File

@ -28,7 +28,7 @@ nilfs_cpfile_get_blkoff(const struct inode *cpfile, __u64 cno)
{
__u64 tcno = cno + NILFS_MDT(cpfile)->mi_first_entry_offset - 1;
do_div(tcno, nilfs_cpfile_checkpoints_per_block(cpfile));
tcno = div64_ul(tcno, nilfs_cpfile_checkpoints_per_block(cpfile));
return (unsigned long)tcno;
}
@ -187,35 +187,90 @@ static inline int nilfs_cpfile_delete_checkpoint_block(struct inode *cpfile,
}
/**
* nilfs_cpfile_get_checkpoint - get a checkpoint
* @cpfile: inode of checkpoint file
* @cno: checkpoint number
* @create: create flag
* @cpp: pointer to a checkpoint
* @bhp: pointer to a buffer head
* nilfs_cpfile_read_checkpoint - read a checkpoint entry in cpfile
* @cpfile: checkpoint file inode
* @cno: number of checkpoint entry to read
* @root: nilfs root object
* @ifile: ifile's inode to read and attach to @root
*
* Description: nilfs_cpfile_get_checkpoint() acquires the checkpoint
* specified by @cno. A new checkpoint will be created if @cno is the current
* checkpoint number and @create is nonzero.
* This function imports checkpoint information from the checkpoint file and
* stores it to the inode file given by @ifile and the nilfs root object
* given by @root.
*
* Return Value: On success, 0 is returned, and the checkpoint and the
* buffer head of the buffer on which the checkpoint is located are stored in
* the place pointed by @cpp and @bhp, respectively. On error, one of the
* following negative error codes is returned.
*
* %-EIO - I/O error.
*
* %-ENOMEM - Insufficient amount of memory available.
*
* %-ENOENT - No such checkpoint.
*
* %-EINVAL - invalid checkpoint.
* Return: 0 on success, or the following negative error code on failure.
* * %-EINVAL - Invalid checkpoint.
* * %-ENOMEM - Insufficient memory available.
* * %-EIO - I/O error (including metadata corruption).
*/
int nilfs_cpfile_get_checkpoint(struct inode *cpfile,
__u64 cno,
int create,
struct nilfs_checkpoint **cpp,
struct buffer_head **bhp)
int nilfs_cpfile_read_checkpoint(struct inode *cpfile, __u64 cno,
struct nilfs_root *root, struct inode *ifile)
{
struct buffer_head *cp_bh;
struct nilfs_checkpoint *cp;
void *kaddr;
int ret;
if (cno < 1 || cno > nilfs_mdt_cno(cpfile))
return -EINVAL;
down_read(&NILFS_MDT(cpfile)->mi_sem);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (unlikely(ret < 0)) {
if (ret == -ENOENT)
ret = -EINVAL;
goto out_sem;
}
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -EINVAL;
goto put_cp;
}
ret = nilfs_read_inode_common(ifile, &cp->cp_ifile_inode);
if (unlikely(ret)) {
/*
* Since this inode is on a checkpoint entry, treat errors
* as metadata corruption.
*/
nilfs_err(cpfile->i_sb,
"ifile inode (checkpoint number=%llu) corrupted",
(unsigned long long)cno);
ret = -EIO;
goto put_cp;
}
/* Configure the nilfs root object */
atomic64_set(&root->inodes_count, le64_to_cpu(cp->cp_inodes_count));
atomic64_set(&root->blocks_count, le64_to_cpu(cp->cp_blocks_count));
root->ifile = ifile;
put_cp:
kunmap_local(kaddr);
brelse(cp_bh);
out_sem:
up_read(&NILFS_MDT(cpfile)->mi_sem);
return ret;
}
/**
* nilfs_cpfile_create_checkpoint - create a checkpoint entry on cpfile
* @cpfile: checkpoint file inode
* @cno: number of checkpoint to set up
*
* This function creates a checkpoint with the number specified by @cno on
* cpfile. If the specified checkpoint entry already exists due to a past
* failure, it will be reused without returning an error.
* In either case, the buffer of the block containing the checkpoint entry
* and the cpfile inode are made dirty for inclusion in the write log.
*
* Return: 0 on success, or the following negative error code on failure.
* * %-ENOMEM - Insufficient memory available.
* * %-EIO - I/O error (including metadata corruption).
* * %-EROFS - Read only filesystem
*/
int nilfs_cpfile_create_checkpoint(struct inode *cpfile, __u64 cno)
{
struct buffer_head *header_bh, *cp_bh;
struct nilfs_cpfile_header *header;
@ -223,46 +278,47 @@ int nilfs_cpfile_get_checkpoint(struct inode *cpfile,
void *kaddr;
int ret;
if (unlikely(cno < 1 || cno > nilfs_mdt_cno(cpfile) ||
(cno < nilfs_mdt_cno(cpfile) && create)))
return -EINVAL;
if (WARN_ON_ONCE(cno < 1))
return -EIO;
down_write(&NILFS_MDT(cpfile)->mi_sem);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
if (unlikely(ret < 0)) {
if (ret == -ENOENT) {
nilfs_error(cpfile->i_sb,
"checkpoint creation failed due to metadata corruption.");
ret = -EIO;
}
goto out_sem;
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, create, &cp_bh);
if (ret < 0)
}
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 1, &cp_bh);
if (unlikely(ret < 0))
goto out_header;
kaddr = kmap(cp_bh->b_page);
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
if (!create) {
kunmap(cp_bh->b_page);
brelse(cp_bh);
ret = -ENOENT;
goto out_header;
}
/* a newly-created checkpoint */
nilfs_checkpoint_clear_invalid(cp);
if (!nilfs_cpfile_is_in_first(cpfile, cno))
nilfs_cpfile_block_add_valid_checkpoints(cpfile, cp_bh,
kaddr, 1);
mark_buffer_dirty(cp_bh);
kunmap_local(kaddr);
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh,
kaddr);
le64_add_cpu(&header->ch_ncheckpoints, 1);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(header_bh);
nilfs_mdt_mark_dirty(cpfile);
} else {
kunmap_local(kaddr);
}
if (cpp != NULL)
*cpp = cp;
*bhp = cp_bh;
/* Force the buffer and the inode to become dirty */
mark_buffer_dirty(cp_bh);
brelse(cp_bh);
nilfs_mdt_mark_dirty(cpfile);
out_header:
brelse(header_bh);
@ -273,20 +329,77 @@ int nilfs_cpfile_get_checkpoint(struct inode *cpfile,
}
/**
* nilfs_cpfile_put_checkpoint - put a checkpoint
* @cpfile: inode of checkpoint file
* nilfs_cpfile_finalize_checkpoint - fill in a checkpoint entry in cpfile
* @cpfile: checkpoint file inode
* @cno: checkpoint number
* @bh: buffer head
* @root: nilfs root object
* @blkinc: number of blocks added by this checkpoint
* @ctime: checkpoint creation time
* @minor: minor checkpoint flag
*
* Description: nilfs_cpfile_put_checkpoint() releases the checkpoint
* specified by @cno. @bh must be the buffer head which has been returned by
* a previous call to nilfs_cpfile_get_checkpoint() with @cno.
* This function completes the checkpoint entry numbered by @cno in the
* cpfile with the data given by the arguments @root, @blkinc, @ctime, and
* @minor.
*
* Return: 0 on success, or the following negative error code on failure.
* * %-ENOMEM - Insufficient memory available.
* * %-EIO - I/O error (including metadata corruption).
*/
void nilfs_cpfile_put_checkpoint(struct inode *cpfile, __u64 cno,
struct buffer_head *bh)
int nilfs_cpfile_finalize_checkpoint(struct inode *cpfile, __u64 cno,
struct nilfs_root *root, __u64 blkinc,
time64_t ctime, bool minor)
{
kunmap(bh->b_page);
brelse(bh);
struct buffer_head *cp_bh;
struct nilfs_checkpoint *cp;
void *kaddr;
int ret;
if (WARN_ON_ONCE(cno < 1))
return -EIO;
down_write(&NILFS_MDT(cpfile)->mi_sem);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (unlikely(ret < 0)) {
if (ret == -ENOENT)
goto error;
goto out_sem;
}
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (unlikely(nilfs_checkpoint_invalid(cp))) {
kunmap_local(kaddr);
brelse(cp_bh);
goto error;
}
cp->cp_snapshot_list.ssl_next = 0;
cp->cp_snapshot_list.ssl_prev = 0;
cp->cp_inodes_count = cpu_to_le64(atomic64_read(&root->inodes_count));
cp->cp_blocks_count = cpu_to_le64(atomic64_read(&root->blocks_count));
cp->cp_nblk_inc = cpu_to_le64(blkinc);
cp->cp_create = cpu_to_le64(ctime);
cp->cp_cno = cpu_to_le64(cno);
if (minor)
nilfs_checkpoint_set_minor(cp);
else
nilfs_checkpoint_clear_minor(cp);
nilfs_write_inode_common(root->ifile, &cp->cp_ifile_inode);
nilfs_bmap_write(NILFS_I(root->ifile)->i_bmap, &cp->cp_ifile_inode);
kunmap_local(kaddr);
brelse(cp_bh);
out_sem:
up_write(&NILFS_MDT(cpfile)->mi_sem);
return ret;
error:
nilfs_error(cpfile->i_sb,
"checkpoint finalization failed due to metadata corruption.");
ret = -EIO;
goto out_sem;
}
/**
@ -347,7 +460,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
continue;
}
kaddr = kmap_atomic(cp_bh->b_page);
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(
cpfile, cno, cp_bh, kaddr);
nicps = 0;
@ -369,7 +482,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
cpfile, cp_bh, kaddr, nicps);
if (count == 0) {
/* make hole */
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(cp_bh);
ret =
nilfs_cpfile_delete_checkpoint_block(
@ -384,18 +497,18 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
}
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(cp_bh);
}
if (tnicps > 0) {
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh,
kaddr);
le64_add_cpu(&header->ch_ncheckpoints, -(u64)tnicps);
mark_buffer_dirty(header_bh);
nilfs_mdt_mark_dirty(cpfile);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
}
brelse(header_bh);
@ -447,7 +560,7 @@ static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
}
ncps = nilfs_cpfile_checkpoints_in_block(cpfile, cno, cur_cno);
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
for (i = 0; i < ncps && n < nci; i++, cp = (void *)cp + cpsz) {
if (!nilfs_checkpoint_invalid(cp)) {
@ -457,7 +570,7 @@ static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
n++;
}
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
}
@ -491,10 +604,10 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
ret = nilfs_cpfile_get_header_block(cpfile, &bh);
if (ret < 0)
goto out;
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, bh, kaddr);
curr = le64_to_cpu(header->ch_snapshot_list.ssl_next);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
if (curr == 0) {
ret = 0;
@ -512,7 +625,7 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
ret = 0; /* No snapshots (started from a hole block) */
goto out;
}
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
while (n < nci) {
cp = nilfs_cpfile_block_get_checkpoint(cpfile, curr, bh, kaddr);
curr = ~(__u64)0; /* Terminator */
@ -528,7 +641,7 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
next_blkoff = nilfs_cpfile_get_blkoff(cpfile, next);
if (curr_blkoff != next_blkoff) {
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, next,
0, &bh);
@ -536,12 +649,12 @@ static ssize_t nilfs_cpfile_do_get_ssinfo(struct inode *cpfile, __u64 *cnop,
WARN_ON(ret == -ENOENT);
goto out;
}
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
}
curr = next;
curr_blkoff = next_blkoff;
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
*cnop = curr;
ret = n;
@ -650,24 +763,24 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0)
goto out_sem;
kaddr = kmap_atomic(cp_bh->b_page);
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -ENOENT;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
goto out_cp;
}
if (nilfs_checkpoint_snapshot(cp)) {
ret = 0;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
goto out_cp;
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
goto out_cp;
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
list = &header->ch_snapshot_list;
curr_bh = header_bh;
@ -679,13 +792,13 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
prev_blkoff = nilfs_cpfile_get_blkoff(cpfile, prev);
curr = prev;
if (curr_blkoff != prev_blkoff) {
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(curr_bh);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, curr,
0, &curr_bh);
if (ret < 0)
goto out_header;
kaddr = kmap_atomic(curr_bh->b_page);
kaddr = kmap_local_page(curr_bh->b_page);
}
curr_blkoff = prev_blkoff;
cp = nilfs_cpfile_block_get_checkpoint(
@ -693,7 +806,7 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
list = &cp->cp_snapshot_list;
prev = le64_to_cpu(list->ssl_prev);
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
if (prev != 0) {
ret = nilfs_cpfile_get_checkpoint_block(cpfile, prev, 0,
@ -705,29 +818,29 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
get_bh(prev_bh);
}
kaddr = kmap_atomic(curr_bh->b_page);
kaddr = kmap_local_page(curr_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, curr, curr_bh, kaddr);
list->ssl_prev = cpu_to_le64(cno);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(cp_bh->b_page);
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
cp->cp_snapshot_list.ssl_next = cpu_to_le64(curr);
cp->cp_snapshot_list.ssl_prev = cpu_to_le64(prev);
nilfs_checkpoint_set_snapshot(cp);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(prev_bh->b_page);
kaddr = kmap_local_page(prev_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, prev, prev_bh, kaddr);
list->ssl_next = cpu_to_le64(cno);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
le64_add_cpu(&header->ch_nsnapshots, 1);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(prev_bh);
mark_buffer_dirty(curr_bh);
@ -768,23 +881,23 @@ static int nilfs_cpfile_clear_snapshot(struct inode *cpfile, __u64 cno)
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0)
goto out_sem;
kaddr = kmap_atomic(cp_bh->b_page);
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -ENOENT;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
goto out_cp;
}
if (!nilfs_checkpoint_snapshot(cp)) {
ret = 0;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
goto out_cp;
}
list = &cp->cp_snapshot_list;
next = le64_to_cpu(list->ssl_next);
prev = le64_to_cpu(list->ssl_prev);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
@ -808,29 +921,29 @@ static int nilfs_cpfile_clear_snapshot(struct inode *cpfile, __u64 cno)
get_bh(prev_bh);
}
kaddr = kmap_atomic(next_bh->b_page);
kaddr = kmap_local_page(next_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, next, next_bh, kaddr);
list->ssl_prev = cpu_to_le64(prev);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(prev_bh->b_page);
kaddr = kmap_local_page(prev_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, prev, prev_bh, kaddr);
list->ssl_next = cpu_to_le64(next);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(cp_bh->b_page);
kaddr = kmap_local_page(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
cp->cp_snapshot_list.ssl_next = cpu_to_le64(0);
cp->cp_snapshot_list.ssl_prev = cpu_to_le64(0);
nilfs_checkpoint_clear_snapshot(cp);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
le64_add_cpu(&header->ch_nsnapshots, -1);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(next_bh);
mark_buffer_dirty(prev_bh);
@ -889,13 +1002,13 @@ int nilfs_cpfile_is_snapshot(struct inode *cpfile, __u64 cno)
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &bh);
if (ret < 0)
goto out;
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
if (nilfs_checkpoint_invalid(cp))
ret = -ENOENT;
else
ret = nilfs_checkpoint_snapshot(cp);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
out:
@ -972,12 +1085,12 @@ int nilfs_cpfile_get_stat(struct inode *cpfile, struct nilfs_cpstat *cpstat)
ret = nilfs_cpfile_get_header_block(cpfile, &bh);
if (ret < 0)
goto out_sem;
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, bh, kaddr);
cpstat->cs_cno = nilfs_mdt_cno(cpfile);
cpstat->cs_ncps = le64_to_cpu(header->ch_ncheckpoints);
cpstat->cs_nsss = le64_to_cpu(header->ch_nsnapshots);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
out_sem:

10
fs/nilfs2/cpfile.h
View File

@ -16,10 +16,12 @@
#include <linux/nilfs2_ondisk.h> /* nilfs_inode, nilfs_checkpoint */
int nilfs_cpfile_get_checkpoint(struct inode *, __u64, int,
struct nilfs_checkpoint **,
struct buffer_head **);
void nilfs_cpfile_put_checkpoint(struct inode *, __u64, struct buffer_head *);
int nilfs_cpfile_read_checkpoint(struct inode *cpfile, __u64 cno,
struct nilfs_root *root, struct inode *ifile);
int nilfs_cpfile_create_checkpoint(struct inode *cpfile, __u64 cno);
int nilfs_cpfile_finalize_checkpoint(struct inode *cpfile, __u64 cno,
struct nilfs_root *root, __u64 blkinc,
time64_t ctime, bool minor);
int nilfs_cpfile_delete_checkpoints(struct inode *, __u64, __u64);
int nilfs_cpfile_delete_checkpoint(struct inode *, __u64);
int nilfs_cpfile_change_cpmode(struct inode *, __u64, int);

40
fs/nilfs2/dat.c
View File

@ -91,13 +91,13 @@ void nilfs_dat_commit_alloc(struct inode *dat, struct nilfs_palloc_req *req)
struct nilfs_dat_entry *entry;
void *kaddr;
kaddr = kmap_atomic(req->pr_entry_bh->b_page);
kaddr = kmap_local_page(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
entry->de_start = cpu_to_le64(NILFS_CNO_MIN);
entry->de_end = cpu_to_le64(NILFS_CNO_MAX);
entry->de_blocknr = cpu_to_le64(0);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
nilfs_palloc_commit_alloc_entry(dat, req);
nilfs_dat_commit_entry(dat, req);
@ -115,13 +115,13 @@ static void nilfs_dat_commit_free(struct inode *dat,
struct nilfs_dat_entry *entry;
void *kaddr;
kaddr = kmap_atomic(req->pr_entry_bh->b_page);
kaddr = kmap_local_page(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
entry->de_start = cpu_to_le64(NILFS_CNO_MIN);
entry->de_end = cpu_to_le64(NILFS_CNO_MIN);
entry->de_blocknr = cpu_to_le64(0);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
nilfs_dat_commit_entry(dat, req);
@ -145,12 +145,12 @@ void nilfs_dat_commit_start(struct inode *dat, struct nilfs_palloc_req *req,
struct nilfs_dat_entry *entry;
void *kaddr;
kaddr = kmap_atomic(req->pr_entry_bh->b_page);
kaddr = kmap_local_page(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
entry->de_start = cpu_to_le64(nilfs_mdt_cno(dat));
entry->de_blocknr = cpu_to_le64(blocknr);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
nilfs_dat_commit_entry(dat, req);
}
@ -167,12 +167,12 @@ int nilfs_dat_prepare_end(struct inode *dat, struct nilfs_palloc_req *req)
if (ret < 0)
return ret;
kaddr = kmap_atomic(req->pr_entry_bh->b_page);
kaddr = kmap_local_page(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
start = le64_to_cpu(entry->de_start);
blocknr = le64_to_cpu(entry->de_blocknr);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
if (blocknr == 0) {
ret = nilfs_palloc_prepare_free_entry(dat, req);
@ -202,7 +202,7 @@ void nilfs_dat_commit_end(struct inode *dat, struct nilfs_palloc_req *req,
sector_t blocknr;
void *kaddr;
kaddr = kmap_atomic(req->pr_entry_bh->b_page);
kaddr = kmap_local_page(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
end = start = le64_to_cpu(entry->de_start);
@ -212,7 +212,7 @@ void nilfs_dat_commit_end(struct inode *dat, struct nilfs_palloc_req *req,
}
entry->de_end = cpu_to_le64(end);
blocknr = le64_to_cpu(entry->de_blocknr);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
if (blocknr == 0)
nilfs_dat_commit_free(dat, req);
@ -227,12 +227,12 @@ void nilfs_dat_abort_end(struct inode *dat, struct nilfs_palloc_req *req)
sector_t blocknr;
void *kaddr;
kaddr = kmap_atomic(req->pr_entry_bh->b_page);
kaddr = kmap_local_page(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
start = le64_to_cpu(entry->de_start);
blocknr = le64_to_cpu(entry->de_blocknr);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
if (start == nilfs_mdt_cno(dat) && blocknr == 0)
nilfs_palloc_abort_free_entry(dat, req);
@ -362,7 +362,7 @@ int nilfs_dat_move(struct inode *dat, __u64 vblocknr, sector_t blocknr)
}
}
kaddr = kmap_atomic(entry_bh->b_page);
kaddr = kmap_local_page(entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, vblocknr, entry_bh, kaddr);
if (unlikely(entry->de_blocknr == cpu_to_le64(0))) {
nilfs_crit(dat->i_sb,
@ -370,13 +370,13 @@ int nilfs_dat_move(struct inode *dat, __u64 vblocknr, sector_t blocknr)
__func__, (unsigned long long)vblocknr,
(unsigned long long)le64_to_cpu(entry->de_start),
(unsigned long long)le64_to_cpu(entry->de_end));
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(entry_bh);
return -EINVAL;
}
WARN_ON(blocknr == 0);
entry->de_blocknr = cpu_to_le64(blocknr);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(entry_bh);
nilfs_mdt_mark_dirty(dat);
@ -426,7 +426,7 @@ int nilfs_dat_translate(struct inode *dat, __u64 vblocknr, sector_t *blocknrp)
}
}
kaddr = kmap_atomic(entry_bh->b_page);
kaddr = kmap_local_page(entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, vblocknr, entry_bh, kaddr);
blocknr = le64_to_cpu(entry->de_blocknr);
if (blocknr == 0) {
@ -436,7 +436,7 @@ int nilfs_dat_translate(struct inode *dat, __u64 vblocknr, sector_t *blocknrp)
*blocknrp = blocknr;
out:
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(entry_bh);
return ret;
}
@ -457,10 +457,10 @@ ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned int visz,
0, &entry_bh);
if (ret < 0)
return ret;
kaddr = kmap_atomic(entry_bh->b_page);
kaddr = kmap_local_page(entry_bh->b_page);
/* last virtual block number in this block */
first = vinfo->vi_vblocknr;
do_div(first, entries_per_block);
first = div64_ul(first, entries_per_block);
first *= entries_per_block;
last = first + entries_per_block - 1;
for (j = i, n = 0;
@ -473,7 +473,7 @@ ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned int visz,
vinfo->vi_end = le64_to_cpu(entry->de_end);
vinfo->vi_blocknr = le64_to_cpu(entry->de_blocknr);
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(entry_bh);
}

9
fs/nilfs2/direct.c
View File

@ -66,7 +66,7 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
dat = nilfs_bmap_get_dat(direct);
ret = nilfs_dat_translate(dat, ptr, &blocknr);
if (ret < 0)
return ret;
goto dat_error;
ptr = blocknr;
}
@ -79,7 +79,7 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
if (dat) {
ret = nilfs_dat_translate(dat, ptr2, &blocknr);
if (ret < 0)
return ret;
goto dat_error;
ptr2 = blocknr;
}
if (ptr2 != ptr + cnt)
@ -87,6 +87,11 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
}
*ptrp = ptr;
return cnt;
dat_error:
if (ret == -ENOENT)
ret = -EINVAL; /* Notify bmap layer of metadata corruption */
return ret;
}
static __u64

21
fs/nilfs2/ifile.c
View File

@ -15,6 +15,7 @@
#include "mdt.h"
#include "alloc.h"
#include "ifile.h"
#include "cpfile.h"
/**
* struct nilfs_ifile_info - on-memory private data of ifile
@ -115,11 +116,11 @@ int nilfs_ifile_delete_inode(struct inode *ifile, ino_t ino)
return ret;
}
kaddr = kmap_atomic(req.pr_entry_bh->b_page);
kaddr = kmap_local_page(req.pr_entry_bh->b_page);
raw_inode = nilfs_palloc_block_get_entry(ifile, req.pr_entry_nr,
req.pr_entry_bh, kaddr);
raw_inode->i_flags = 0;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(req.pr_entry_bh);
brelse(req.pr_entry_bh);
@ -173,14 +174,18 @@ int nilfs_ifile_count_free_inodes(struct inode *ifile,
* nilfs_ifile_read - read or get ifile inode
* @sb: super block instance
* @root: root object
* @cno: number of checkpoint entry to read
* @inode_size: size of an inode
* @raw_inode: on-disk ifile inode
* @inodep: buffer to store the inode
*
* Return: 0 on success, or the following negative error code on failure.
* * %-EINVAL - Invalid checkpoint.
* * %-ENOMEM - Insufficient memory available.
* * %-EIO - I/O error (including metadata corruption).
*/
int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
size_t inode_size, struct nilfs_inode *raw_inode,
struct inode **inodep)
__u64 cno, size_t inode_size)
{
struct the_nilfs *nilfs;
struct inode *ifile;
int err;
@ -201,13 +206,13 @@ int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
nilfs_palloc_setup_cache(ifile, &NILFS_IFILE_I(ifile)->palloc_cache);
err = nilfs_read_inode_common(ifile, raw_inode);
nilfs = sb->s_fs_info;
err = nilfs_cpfile_read_checkpoint(nilfs->ns_cpfile, cno, root, ifile);
if (err)
goto failed;
unlock_new_inode(ifile);
out:
*inodep = ifile;
return 0;
failed:
iget_failed(ifile);

10
fs/nilfs2/ifile.h
View File

@ -21,15 +21,14 @@
static inline struct nilfs_inode *
nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
{
void *kaddr = kmap(ibh->b_page);
void *kaddr = kmap_local_page(ibh->b_page);
return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
}
static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
struct buffer_head *ibh)
static inline void nilfs_ifile_unmap_inode(struct nilfs_inode *raw_inode)
{
kunmap(ibh->b_page);
kunmap_local(raw_inode);
}
int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
@ -39,7 +38,6 @@ int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);
int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
size_t inode_size, struct nilfs_inode *raw_inode,
struct inode **inodep);
__u64 cno, size_t inode_size);
#endif /* _NILFS_IFILE_H */

46
fs/nilfs2/inode.c
View File

@ -112,7 +112,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
"%s (ino=%lu): a race condition while inserting a data block at offset=%llu",
__func__, inode->i_ino,
(unsigned long long)blkoff);
err = 0;
err = -EAGAIN;
}
nilfs_transaction_abort(inode->i_sb);
goto out;
@ -520,7 +520,7 @@ static int __nilfs_read_inode(struct super_block *sb,
inode, inode->i_mode,
huge_decode_dev(le64_to_cpu(raw_inode->i_device_code)));
}
nilfs_ifile_unmap_inode(root->ifile, ino, bh);
nilfs_ifile_unmap_inode(raw_inode);
brelse(bh);
up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
nilfs_set_inode_flags(inode);
@ -529,7 +529,7 @@ static int __nilfs_read_inode(struct super_block *sb,
return 0;
failed_unmap:
nilfs_ifile_unmap_inode(root->ifile, ino, bh);
nilfs_ifile_unmap_inode(raw_inode);
brelse(bh);
bad_inode:
@ -759,8 +759,18 @@ struct inode *nilfs_iget_for_shadow(struct inode *inode)
return s_inode;
}
/**
* nilfs_write_inode_common - export common inode information to on-disk inode
* @inode: inode object
* @raw_inode: on-disk inode
*
* This function writes standard information from the on-memory inode @inode
* to @raw_inode on ifile, cpfile or a super root block. Since inode bmap
* data is not exported, nilfs_bmap_write() must be called separately during
* log writing.
*/
void nilfs_write_inode_common(struct inode *inode,
struct nilfs_inode *raw_inode, int has_bmap)
struct nilfs_inode *raw_inode)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
@ -778,21 +788,6 @@ void nilfs_write_inode_common(struct inode *inode,
raw_inode->i_flags = cpu_to_le32(ii->i_flags);
raw_inode->i_generation = cpu_to_le32(inode->i_generation);
if (NILFS_ROOT_METADATA_FILE(inode->i_ino)) {
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
/* zero-fill unused portion in the case of super root block */
raw_inode->i_xattr = 0;
raw_inode->i_pad = 0;
memset((void *)raw_inode + sizeof(*raw_inode), 0,
nilfs->ns_inode_size - sizeof(*raw_inode));
}
if (has_bmap)
nilfs_bmap_write(ii->i_bmap, raw_inode);
else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
raw_inode->i_device_code =
cpu_to_le64(huge_encode_dev(inode->i_rdev));
/*
* When extending inode, nilfs->ns_inode_size should be checked
* for substitutions of appended fields.
@ -813,14 +808,13 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
if (flags & I_DIRTY_DATASYNC)
set_bit(NILFS_I_INODE_SYNC, &ii->i_state);
nilfs_write_inode_common(inode, raw_inode, 0);
/*
* XXX: call with has_bmap = 0 is a workaround to avoid
* deadlock of bmap. This delays update of i_bmap to just
* before writing.
*/
nilfs_write_inode_common(inode, raw_inode);
nilfs_ifile_unmap_inode(ifile, ino, ibh);
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
raw_inode->i_device_code =
cpu_to_le64(huge_encode_dev(inode->i_rdev));
nilfs_ifile_unmap_inode(raw_inode);
}
#define NILFS_MAX_TRUNCATE_BLOCKS 16384 /* 64MB for 4KB block */

4
fs/nilfs2/ioctl.c
View File

@ -1111,7 +1111,7 @@ static int nilfs_ioctl_set_alloc_range(struct inode *inode, void __user *argp)
segbytes = nilfs->ns_blocks_per_segment * nilfs->ns_blocksize;
minseg = range[0] + segbytes - 1;
do_div(minseg, segbytes);
minseg = div64_ul(minseg, segbytes);
if (range[1] < 4096)
goto out;
@ -1120,7 +1120,7 @@ static int nilfs_ioctl_set_alloc_range(struct inode *inode, void __user *argp)
if (maxseg < segbytes)
goto out;
do_div(maxseg, segbytes);
maxseg = div64_ul(maxseg, segbytes);
maxseg--;
ret = nilfs_sufile_set_alloc_range(nilfs->ns_sufile, minseg, maxseg);

4
fs/nilfs2/mdt.c
View File

@ -47,12 +47,12 @@ nilfs_mdt_insert_new_block(struct inode *inode, unsigned long block,
set_buffer_mapped(bh);
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
memset(kaddr + bh_offset(bh), 0, i_blocksize(inode));
if (init_block)
init_block(inode, bh, kaddr);
flush_dcache_page(bh->b_page);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
set_buffer_uptodate(bh);
mark_buffer_dirty(bh);

3
fs/nilfs2/nilfs.h
View File

@ -256,7 +256,8 @@ extern struct inode *nilfs_new_inode(struct inode *, umode_t);
extern int nilfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern void nilfs_set_inode_flags(struct inode *);
extern int nilfs_read_inode_common(struct inode *, struct nilfs_inode *);
extern void nilfs_write_inode_common(struct inode *, struct nilfs_inode *, int);
void nilfs_write_inode_common(struct inode *inode,
struct nilfs_inode *raw_inode);
struct inode *nilfs_ilookup(struct super_block *sb, struct nilfs_root *root,
unsigned long ino);
struct inode *nilfs_iget_locked(struct super_block *sb, struct nilfs_root *root,

8
fs/nilfs2/page.c
View File

@ -103,11 +103,11 @@ void nilfs_copy_buffer(struct buffer_head *dbh, struct buffer_head *sbh)
struct page *spage = sbh->b_page, *dpage = dbh->b_page;
struct buffer_head *bh;
kaddr0 = kmap_atomic(spage);
kaddr1 = kmap_atomic(dpage);
kaddr0 = kmap_local_page(spage);
kaddr1 = kmap_local_page(dpage);
memcpy(kaddr1 + bh_offset(dbh), kaddr0 + bh_offset(sbh), sbh->b_size);
kunmap_atomic(kaddr1);
kunmap_atomic(kaddr0);
kunmap_local(kaddr1);
kunmap_local(kaddr0);
dbh->b_state = sbh->b_state & NILFS_BUFFER_INHERENT_BITS;
dbh->b_blocknr = sbh->b_blocknr;

4
fs/nilfs2/recovery.c
View File

@ -482,9 +482,9 @@ static int nilfs_recovery_copy_block(struct the_nilfs *nilfs,
if (unlikely(!bh_org))
return -EIO;
kaddr = kmap_atomic(page);
kaddr = kmap_local_page(page);
memcpy(kaddr + from, bh_org->b_data, bh_org->b_size);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh_org);
return 0;
}

4
fs/nilfs2/segbuf.c
View File

@ -220,9 +220,9 @@ static void nilfs_segbuf_fill_in_data_crc(struct nilfs_segment_buffer *segbuf,
crc = crc32_le(crc, bh->b_data, bh->b_size);
}
list_for_each_entry(bh, &segbuf->sb_payload_buffers, b_assoc_buffers) {
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
crc = crc32_le(crc, kaddr + bh_offset(bh), bh->b_size);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
}
raw_sum->ss_datasum = cpu_to_le32(crc);
}

121
fs/nilfs2/segment.c
View File

@ -880,76 +880,6 @@ static void nilfs_segctor_clear_metadata_dirty(struct nilfs_sc_info *sci)
nilfs_mdt_clear_dirty(nilfs->ns_dat);
}
static int nilfs_segctor_create_checkpoint(struct nilfs_sc_info *sci)
{
struct the_nilfs *nilfs = sci->sc_super->s_fs_info;
struct buffer_head *bh_cp;
struct nilfs_checkpoint *raw_cp;
int err;
/* XXX: this interface will be changed */
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, 1,
&raw_cp, &bh_cp);
if (likely(!err)) {
/*
* The following code is duplicated with cpfile. But, it is
* needed to collect the checkpoint even if it was not newly
* created.
*/
mark_buffer_dirty(bh_cp);
nilfs_mdt_mark_dirty(nilfs->ns_cpfile);
nilfs_cpfile_put_checkpoint(
nilfs->ns_cpfile, nilfs->ns_cno, bh_cp);
} else if (err == -EINVAL || err == -ENOENT) {
nilfs_error(sci->sc_super,
"checkpoint creation failed due to metadata corruption.");
err = -EIO;
}
return err;
}
static int nilfs_segctor_fill_in_checkpoint(struct nilfs_sc_info *sci)
{
struct the_nilfs *nilfs = sci->sc_super->s_fs_info;
struct buffer_head *bh_cp;
struct nilfs_checkpoint *raw_cp;
int err;
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, 0,
&raw_cp, &bh_cp);
if (unlikely(err)) {
if (err == -EINVAL || err == -ENOENT) {
nilfs_error(sci->sc_super,
"checkpoint finalization failed due to metadata corruption.");
err = -EIO;
}
goto failed_ibh;
}
raw_cp->cp_snapshot_list.ssl_next = 0;
raw_cp->cp_snapshot_list.ssl_prev = 0;
raw_cp->cp_inodes_count =
cpu_to_le64(atomic64_read(&sci->sc_root->inodes_count));
raw_cp->cp_blocks_count =
cpu_to_le64(atomic64_read(&sci->sc_root->blocks_count));
raw_cp->cp_nblk_inc =
cpu_to_le64(sci->sc_nblk_inc + sci->sc_nblk_this_inc);
raw_cp->cp_create = cpu_to_le64(sci->sc_seg_ctime);
raw_cp->cp_cno = cpu_to_le64(nilfs->ns_cno);
if (test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags))
nilfs_checkpoint_clear_minor(raw_cp);
else
nilfs_checkpoint_set_minor(raw_cp);
nilfs_write_inode_common(sci->sc_root->ifile,
&raw_cp->cp_ifile_inode, 1);
nilfs_cpfile_put_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, bh_cp);
return 0;
failed_ibh:
return err;
}
static void nilfs_fill_in_file_bmap(struct inode *ifile,
struct nilfs_inode_info *ii)
@ -963,7 +893,7 @@ static void nilfs_fill_in_file_bmap(struct inode *ifile,
raw_inode = nilfs_ifile_map_inode(ifile, ii->vfs_inode.i_ino,
ibh);
nilfs_bmap_write(ii->i_bmap, raw_inode);
nilfs_ifile_unmap_inode(ifile, ii->vfs_inode.i_ino, ibh);
nilfs_ifile_unmap_inode(raw_inode);
}
}
@ -977,6 +907,33 @@ static void nilfs_segctor_fill_in_file_bmap(struct nilfs_sc_info *sci)
}
}
/**
* nilfs_write_root_mdt_inode - export root metadata inode information to
* the on-disk inode
* @inode: inode object of the root metadata file
* @raw_inode: on-disk inode
*
* nilfs_write_root_mdt_inode() writes inode information and bmap data of
* @inode to the inode area of the metadata file allocated on the super root
* block created to finalize the log. Since super root blocks are configured
* each time, this function zero-fills the unused area of @raw_inode.
*/
static void nilfs_write_root_mdt_inode(struct inode *inode,
struct nilfs_inode *raw_inode)
{
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
nilfs_write_inode_common(inode, raw_inode);
/* zero-fill unused portion of raw_inode */
raw_inode->i_xattr = 0;
raw_inode->i_pad = 0;
memset((void *)raw_inode + sizeof(*raw_inode), 0,
nilfs->ns_inode_size - sizeof(*raw_inode));
nilfs_bmap_write(NILFS_I(inode)->i_bmap, raw_inode);
}
static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci,
struct the_nilfs *nilfs)
{
@ -998,12 +955,13 @@ static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci,
nilfs->ns_nongc_ctime : sci->sc_seg_ctime);
raw_sr->sr_flags = 0;
nilfs_write_inode_common(nilfs->ns_dat, (void *)raw_sr +
NILFS_SR_DAT_OFFSET(isz), 1);
nilfs_write_inode_common(nilfs->ns_cpfile, (void *)raw_sr +
NILFS_SR_CPFILE_OFFSET(isz), 1);
nilfs_write_inode_common(nilfs->ns_sufile, (void *)raw_sr +
NILFS_SR_SUFILE_OFFSET(isz), 1);
nilfs_write_root_mdt_inode(nilfs->ns_dat, (void *)raw_sr +
NILFS_SR_DAT_OFFSET(isz));
nilfs_write_root_mdt_inode(nilfs->ns_cpfile, (void *)raw_sr +
NILFS_SR_CPFILE_OFFSET(isz));
nilfs_write_root_mdt_inode(nilfs->ns_sufile, (void *)raw_sr +
NILFS_SR_SUFILE_OFFSET(isz));
memset((void *)raw_sr + srsz, 0, nilfs->ns_blocksize - srsz);
set_buffer_uptodate(bh_sr);
unlock_buffer(bh_sr);
@ -1230,7 +1188,8 @@ static int nilfs_segctor_collect_blocks(struct nilfs_sc_info *sci, int mode)
break;
nilfs_sc_cstage_inc(sci);
/* Creating a checkpoint */
err = nilfs_segctor_create_checkpoint(sci);
err = nilfs_cpfile_create_checkpoint(nilfs->ns_cpfile,
nilfs->ns_cno);
if (unlikely(err))
break;
fallthrough;
@ -2101,7 +2060,11 @@ static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode)
if (mode == SC_LSEG_SR &&
nilfs_sc_cstage_get(sci) >= NILFS_ST_CPFILE) {
err = nilfs_segctor_fill_in_checkpoint(sci);
err = nilfs_cpfile_finalize_checkpoint(
nilfs->ns_cpfile, nilfs->ns_cno, sci->sc_root,
sci->sc_nblk_inc + sci->sc_nblk_this_inc,
sci->sc_seg_ctime,
!test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags));
if (unlikely(err))
goto failed_to_write;

88
fs/nilfs2/sufile.c
View File

@ -48,7 +48,7 @@ nilfs_sufile_get_blkoff(const struct inode *sufile, __u64 segnum)
{
__u64 t = segnum + NILFS_MDT(sufile)->mi_first_entry_offset;
do_div(t, nilfs_sufile_segment_usages_per_block(sufile));
t = div64_ul(t, nilfs_sufile_segment_usages_per_block(sufile));
return (unsigned long)t;
}
@ -107,11 +107,11 @@ static void nilfs_sufile_mod_counter(struct buffer_head *header_bh,
struct nilfs_sufile_header *header;
void *kaddr;
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
le64_add_cpu(&header->sh_ncleansegs, ncleanadd);
le64_add_cpu(&header->sh_ndirtysegs, ndirtyadd);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(header_bh);
}
@ -315,10 +315,10 @@ int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
ret = nilfs_sufile_get_header_block(sufile, &header_bh);
if (ret < 0)
goto out_sem;
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
last_alloc = le64_to_cpu(header->sh_last_alloc);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
nsegments = nilfs_sufile_get_nsegments(sufile);
maxsegnum = sui->allocmax;
@ -352,7 +352,7 @@ int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
&su_bh);
if (ret < 0)
goto out_header;
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, segnum, su_bh, kaddr);
@ -363,14 +363,14 @@ int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
continue;
/* found a clean segment */
nilfs_segment_usage_set_dirty(su);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
le64_add_cpu(&header->sh_ncleansegs, -1);
le64_add_cpu(&header->sh_ndirtysegs, 1);
header->sh_last_alloc = cpu_to_le64(segnum);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
sui->ncleansegs--;
mark_buffer_dirty(header_bh);
@ -384,7 +384,7 @@ int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
goto out_header;
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(su_bh);
}
@ -406,16 +406,16 @@ void nilfs_sufile_do_cancel_free(struct inode *sufile, __u64 segnum,
struct nilfs_segment_usage *su;
void *kaddr;
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (unlikely(!nilfs_segment_usage_clean(su))) {
nilfs_warn(sufile->i_sb, "%s: segment %llu must be clean",
__func__, (unsigned long long)segnum);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
return;
}
nilfs_segment_usage_set_dirty(su);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
nilfs_sufile_mod_counter(header_bh, -1, 1);
NILFS_SUI(sufile)->ncleansegs--;
@ -432,11 +432,11 @@ void nilfs_sufile_do_scrap(struct inode *sufile, __u64 segnum,
void *kaddr;
int clean, dirty;
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (su->su_flags == cpu_to_le32(BIT(NILFS_SEGMENT_USAGE_DIRTY)) &&
su->su_nblocks == cpu_to_le32(0)) {
kunmap_atomic(kaddr);
kunmap_local(kaddr);
return;
}
clean = nilfs_segment_usage_clean(su);
@ -446,7 +446,7 @@ void nilfs_sufile_do_scrap(struct inode *sufile, __u64 segnum,
su->su_lastmod = cpu_to_le64(0);
su->su_nblocks = cpu_to_le32(0);
su->su_flags = cpu_to_le32(BIT(NILFS_SEGMENT_USAGE_DIRTY));
kunmap_atomic(kaddr);
kunmap_local(kaddr);
nilfs_sufile_mod_counter(header_bh, clean ? (u64)-1 : 0, dirty ? 0 : 1);
NILFS_SUI(sufile)->ncleansegs -= clean;
@ -463,12 +463,12 @@ void nilfs_sufile_do_free(struct inode *sufile, __u64 segnum,
void *kaddr;
int sudirty;
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (nilfs_segment_usage_clean(su)) {
nilfs_warn(sufile->i_sb, "%s: segment %llu is already clean",
__func__, (unsigned long long)segnum);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
return;
}
if (unlikely(nilfs_segment_usage_error(su)))
@ -481,7 +481,7 @@ void nilfs_sufile_do_free(struct inode *sufile, __u64 segnum,
(unsigned long long)segnum);
nilfs_segment_usage_set_clean(su);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(su_bh);
nilfs_sufile_mod_counter(header_bh, 1, sudirty ? (u64)-1 : 0);
@ -509,12 +509,12 @@ int nilfs_sufile_mark_dirty(struct inode *sufile, __u64 segnum)
if (ret)
goto out_sem;
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, bh, kaddr);
if (unlikely(nilfs_segment_usage_error(su))) {
struct the_nilfs *nilfs = sufile->i_sb->s_fs_info;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(bh);
if (nilfs_segment_is_active(nilfs, segnum)) {
nilfs_error(sufile->i_sb,
@ -532,7 +532,7 @@ int nilfs_sufile_mark_dirty(struct inode *sufile, __u64 segnum)
ret = -EIO;
} else {
nilfs_segment_usage_set_dirty(su);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(bh);
nilfs_mdt_mark_dirty(sufile);
brelse(bh);
@ -562,7 +562,7 @@ int nilfs_sufile_set_segment_usage(struct inode *sufile, __u64 segnum,
if (ret < 0)
goto out_sem;
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, bh, kaddr);
if (modtime) {
/*
@ -573,7 +573,7 @@ int nilfs_sufile_set_segment_usage(struct inode *sufile, __u64 segnum,
su->su_lastmod = cpu_to_le64(modtime);
}
su->su_nblocks = cpu_to_le32(nblocks);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(bh);
nilfs_mdt_mark_dirty(sufile);
@ -614,7 +614,7 @@ int nilfs_sufile_get_stat(struct inode *sufile, struct nilfs_sustat *sustat)
if (ret < 0)
goto out_sem;
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
sustat->ss_nsegs = nilfs_sufile_get_nsegments(sufile);
sustat->ss_ncleansegs = le64_to_cpu(header->sh_ncleansegs);
@ -624,7 +624,7 @@ int nilfs_sufile_get_stat(struct inode *sufile, struct nilfs_sustat *sustat)
spin_lock(&nilfs->ns_last_segment_lock);
sustat->ss_prot_seq = nilfs->ns_prot_seq;
spin_unlock(&nilfs->ns_last_segment_lock);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(header_bh);
out_sem:
@ -640,15 +640,15 @@ void nilfs_sufile_do_set_error(struct inode *sufile, __u64 segnum,
void *kaddr;
int suclean;
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (nilfs_segment_usage_error(su)) {
kunmap_atomic(kaddr);
kunmap_local(kaddr);
return;
}
suclean = nilfs_segment_usage_clean(su);
nilfs_segment_usage_set_error(su);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
if (suclean) {
nilfs_sufile_mod_counter(header_bh, -1, 0);
@ -717,7 +717,7 @@ static int nilfs_sufile_truncate_range(struct inode *sufile,
/* hole */
continue;
}
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, segnum, su_bh, kaddr);
su2 = su;
@ -726,7 +726,7 @@ static int nilfs_sufile_truncate_range(struct inode *sufile,
~BIT(NILFS_SEGMENT_USAGE_ERROR)) ||
nilfs_segment_is_active(nilfs, segnum + j)) {
ret = -EBUSY;
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(su_bh);
goto out_header;
}
@ -738,7 +738,7 @@ static int nilfs_sufile_truncate_range(struct inode *sufile,
nc++;
}
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
if (nc > 0) {
mark_buffer_dirty(su_bh);
ncleaned += nc;
@ -823,10 +823,10 @@ int nilfs_sufile_resize(struct inode *sufile, __u64 newnsegs)
sui->allocmin = 0;
}
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
header->sh_ncleansegs = cpu_to_le64(sui->ncleansegs);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
mark_buffer_dirty(header_bh);
nilfs_mdt_mark_dirty(sufile);
@ -891,7 +891,7 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
continue;
}
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, segnum, su_bh, kaddr);
for (j = 0; j < n;
@ -904,7 +904,7 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
si->sui_flags |=
BIT(NILFS_SEGMENT_USAGE_ACTIVE);
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(su_bh);
}
ret = nsegs;
@ -973,7 +973,7 @@ ssize_t nilfs_sufile_set_suinfo(struct inode *sufile, void *buf,
goto out_header;
for (;;) {
kaddr = kmap_atomic(bh->b_page);
kaddr = kmap_local_page(bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, sup->sup_segnum, bh, kaddr);
@ -1010,7 +1010,7 @@ ssize_t nilfs_sufile_set_suinfo(struct inode *sufile, void *buf,
su->su_flags = cpu_to_le32(sup->sup_sui.sui_flags);
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
sup = (void *)sup + supsz;
if (sup >= supend)
@ -1115,7 +1115,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
continue;
}
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum,
su_bh, kaddr);
for (i = 0; i < n; ++i, ++segnum, su = (void *)su + susz) {
@ -1145,7 +1145,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
}
if (nblocks >= minlen) {
kunmap_atomic(kaddr);
kunmap_local(kaddr);
ret = blkdev_issue_discard(nilfs->ns_bdev,
start * sects_per_block,
@ -1157,7 +1157,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
}
ndiscarded += nblocks;
kaddr = kmap_atomic(su_bh->b_page);
kaddr = kmap_local_page(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, segnum, su_bh, kaddr);
}
@ -1166,7 +1166,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
start = seg_start;
nblocks = seg_end - seg_start + 1;
}
kunmap_atomic(kaddr);
kunmap_local(kaddr);
put_bh(su_bh);
}
@ -1246,10 +1246,10 @@ int nilfs_sufile_read(struct super_block *sb, size_t susize,
goto failed;
sui = NILFS_SUI(sufile);
kaddr = kmap_atomic(header_bh->b_page);
kaddr = kmap_local_page(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
sui->ncleansegs = le64_to_cpu(header->sh_ncleansegs);
kunmap_atomic(kaddr);
kunmap_local(kaddr);
brelse(header_bh);
sui->allocmax = nilfs_sufile_get_nsegments(sufile) - 1;

33
fs/nilfs2/super.c
View File

@ -448,7 +448,7 @@ int nilfs_resize_fs(struct super_block *sb, __u64 newsize)
sb2off = NILFS_SB2_OFFSET_BYTES(newsize);
newnsegs = sb2off >> nilfs->ns_blocksize_bits;
do_div(newnsegs, nilfs->ns_blocks_per_segment);
newnsegs = div64_ul(newnsegs, nilfs->ns_blocks_per_segment);
ret = nilfs_sufile_resize(nilfs->ns_sufile, newnsegs);
up_write(&nilfs->ns_segctor_sem);
@ -544,8 +544,6 @@ int nilfs_attach_checkpoint(struct super_block *sb, __u64 cno, int curr_mnt,
{
struct the_nilfs *nilfs = sb->s_fs_info;
struct nilfs_root *root;
struct nilfs_checkpoint *raw_cp;
struct buffer_head *bh_cp;
int err = -ENOMEM;
root = nilfs_find_or_create_root(
@ -557,38 +555,19 @@ int nilfs_attach_checkpoint(struct super_block *sb, __u64 cno, int curr_mnt,
goto reuse; /* already attached checkpoint */
down_read(&nilfs->ns_segctor_sem);
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, cno, 0, &raw_cp,
&bh_cp);
err = nilfs_ifile_read(sb, root, cno, nilfs->ns_inode_size);
up_read(&nilfs->ns_segctor_sem);
if (unlikely(err)) {
if (err == -ENOENT || err == -EINVAL) {
nilfs_err(sb,
"Invalid checkpoint (checkpoint number=%llu)",
(unsigned long long)cno);
err = -EINVAL;
}
if (unlikely(err))
goto failed;
}
err = nilfs_ifile_read(sb, root, nilfs->ns_inode_size,
&raw_cp->cp_ifile_inode, &root->ifile);
if (err)
goto failed_bh;
atomic64_set(&root->inodes_count,
le64_to_cpu(raw_cp->cp_inodes_count));
atomic64_set(&root->blocks_count,
le64_to_cpu(raw_cp->cp_blocks_count));
nilfs_cpfile_put_checkpoint(nilfs->ns_cpfile, cno, bh_cp);
reuse:
*rootp = root;
return 0;
failed_bh:
nilfs_cpfile_put_checkpoint(nilfs->ns_cpfile, cno, bh_cp);
failed:
if (err == -EINVAL)
nilfs_err(sb, "Invalid checkpoint (checkpoint number=%llu)",
(unsigned long long)cno);
nilfs_put_root(root);
return err;

2
fs/nilfs2/the_nilfs.c
View File

@ -413,7 +413,7 @@ static u64 nilfs_max_segment_count(struct the_nilfs *nilfs)
{
u64 max_count = U64_MAX;
do_div(max_count, nilfs->ns_blocks_per_segment);
max_count = div64_ul(max_count, nilfs->ns_blocks_per_segment);
return min_t(u64, max_count, ULONG_MAX);
}

2
fs/ocfs2/dlmglue.c
View File

@ -1615,7 +1615,7 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb,
unlock:
lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
/* ocfs2_unblock_lock reques on seeing OCFS2_LOCK_UPCONVERT_FINISHING */
/* ocfs2_unblock_lock request on seeing OCFS2_LOCK_UPCONVERT_FINISHING */
kick_dc = (lockres->l_flags & OCFS2_LOCK_BLOCKED);
spin_unlock_irqrestore(&lockres->l_lock, flags);

1
fs/ocfs2/file.c
View File

@ -2763,6 +2763,7 @@ const struct inode_operations ocfs2_file_iops = {
const struct inode_operations ocfs2_special_file_iops = {
.setattr = ocfs2_setattr,
.getattr = ocfs2_getattr,
.listxattr = ocfs2_listxattr,
.permission = ocfs2_permission,
.get_inode_acl = ocfs2_iop_get_acl,
.set_acl = ocfs2_iop_set_acl,

4
fs/ocfs2/super.c
View File

@ -1711,12 +1711,12 @@ static int ocfs2_initialize_mem_caches(void)
ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache",
sizeof(struct ocfs2_dquot),
0,
(SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT),
SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
NULL);
ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache",
sizeof(struct ocfs2_quota_chunk),
0,
(SLAB_RECLAIM_ACCOUNT),
SLAB_RECLAIM_ACCOUNT,
NULL);
if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep ||
!ocfs2_qf_chunk_cachep) {

2
include/asm-generic/vmlinux.lds.h
View File

@ -984,7 +984,7 @@
* -fsanitize=thread produce unwanted sections (.eh_frame
* and .init_array.*), but CONFIG_CONSTRUCTORS wants to
* keep any .init_array.* sections.
* https://bugs.llvm.org/show_bug.cgi?id=46478
* https://llvm.org/pr46478
*/
#ifdef CONFIG_UNWIND_TABLES
#define DISCARD_EH_FRAME

10
include/linux/compiler-clang.h
View File

@ -9,7 +9,7 @@
* Clang prior to 17 is being silly and considers many __cleanup() variables
* as unused (because they are, their sole purpose is to go out of scope).
*
* https://reviews.llvm.org/D152180
* https://github.com/llvm/llvm-project/commit/877210faa447f4cc7db87812f8ed80e398fedd61
*/
#undef __cleanup
#define __cleanup(func) __maybe_unused __attribute__((__cleanup__(func)))
@ -114,11 +114,7 @@
#define __diag_str(s) __diag_str1(s)
#define __diag(s) _Pragma(__diag_str(clang diagnostic s))
#if CONFIG_CLANG_VERSION >= 110000
#define __diag_clang_11(s) __diag(s)
#else
#define __diag_clang_11(s)
#endif
#define __diag_clang_13(s) __diag(s)
#define __diag_ignore_all(option, comment) \
__diag_clang(11, ignore, option)
__diag_clang(13, ignore, option)

32
include/linux/flex_proportions.h
View File

@ -38,38 +38,6 @@ int fprop_global_init(struct fprop_global *p, gfp_t gfp);
void fprop_global_destroy(struct fprop_global *p);
bool fprop_new_period(struct fprop_global *p, int periods);
/*
* ---- SINGLE ----
*/
struct fprop_local_single {
/* the local events counter */
unsigned long events;
/* Period in which we last updated events */
unsigned int period;
raw_spinlock_t lock; /* Protect period and numerator */
};
#define INIT_FPROP_LOCAL_SINGLE(name) \
{ .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \
}
int fprop_local_init_single(struct fprop_local_single *pl);
void fprop_local_destroy_single(struct fprop_local_single *pl);
void __fprop_inc_single(struct fprop_global *p, struct fprop_local_single *pl);
void fprop_fraction_single(struct fprop_global *p,
struct fprop_local_single *pl, unsigned long *numerator,
unsigned long *denominator);
static inline
void fprop_inc_single(struct fprop_global *p, struct fprop_local_single *pl)
{
unsigned long flags;
local_irq_save(flags);
__fprop_inc_single(p, pl);
local_irq_restore(flags);
}
/*
* ---- PERCPU ----
*/

17
include/linux/list.h
View File

@ -766,7 +766,7 @@ static inline size_t list_count_nodes(struct list_head *head)
* @member: the name of the list_head within the struct.
*/
#define list_entry_is_head(pos, head, member) \
(&pos->member == (head))
list_is_head(&pos->member, (head))
/**
* list_for_each_entry - iterate over list of given type
@ -1195,4 +1195,19 @@ static inline void hlist_splice_init(struct hlist_head *from,
pos && ({ n = pos->member.next; 1; }); \
pos = hlist_entry_safe(n, typeof(*pos), member))
/**
* hlist_count_nodes - count nodes in the hlist
* @head: the head for your hlist.
*/
static inline size_t hlist_count_nodes(struct hlist_head *head)
{
struct hlist_node *pos;
size_t count = 0;
hlist_for_each(pos, head)
count++;
return count;
}
#endif

44
include/linux/min_heap.h
View File

@ -35,31 +35,33 @@ static __always_inline
void min_heapify(struct min_heap *heap, int pos,
const struct min_heap_callbacks *func)
{
void *left, *right, *parent, *smallest;
void *left, *right;
void *data = heap->data;
void *root = data + pos * func->elem_size;
int i = pos, j;
/* Find the sift-down path all the way to the leaves. */
for (;;) {
if (pos * 2 + 1 >= heap->nr)
if (i * 2 + 2 >= heap->nr)
break;
left = data + ((pos * 2 + 1) * func->elem_size);
parent = data + (pos * func->elem_size);
smallest = parent;
if (func->less(left, smallest))
smallest = left;
if (pos * 2 + 2 < heap->nr) {
right = data + ((pos * 2 + 2) * func->elem_size);
if (func->less(right, smallest))
smallest = right;
left = data + (i * 2 + 1) * func->elem_size;
right = data + (i * 2 + 2) * func->elem_size;
i = func->less(left, right) ? i * 2 + 1 : i * 2 + 2;
}
if (smallest == parent)
break;
func->swp(smallest, parent);
if (smallest == left)
pos = (pos * 2) + 1;
else
pos = (pos * 2) + 2;
/* Special case for the last leaf with no sibling. */
if (i * 2 + 2 == heap->nr)
i = i * 2 + 1;
/* Backtrack to the correct location. */
while (i != pos && func->less(root, data + i * func->elem_size))
i = (i - 1) / 2;
/* Shift the element into its correct place. */
j = i;
while (i != pos) {
i = (i - 1) / 2;
func->swp(data + i * func->elem_size, data + j * func->elem_size);
}
}
@ -70,7 +72,7 @@ void min_heapify_all(struct min_heap *heap,
{
int i;
for (i = heap->nr / 2; i >= 0; i--)
for (i = heap->nr / 2 - 1; i >= 0; i--)
min_heapify(heap, i, func);
}

7
include/linux/nmi.h
View File

@ -216,13 +216,6 @@ void watchdog_update_hrtimer_threshold(u64 period);
static inline void watchdog_update_hrtimer_threshold(u64 period) { }
#endif
struct ctl_table;
int proc_watchdog(struct ctl_table *, int, void *, size_t *, loff_t *);
int proc_nmi_watchdog(struct ctl_table *, int , void *, size_t *, loff_t *);
int proc_soft_watchdog(struct ctl_table *, int , void *, size_t *, loff_t *);
int proc_watchdog_thresh(struct ctl_table *, int , void *, size_t *, loff_t *);
int proc_watchdog_cpumask(struct ctl_table *, int, void *, size_t *, loff_t *);
#ifdef CONFIG_HAVE_ACPI_APEI_NMI
#include <asm/nmi.h>
#endif

2
include/linux/start_kernel.h
View File

@ -9,7 +9,5 @@
up something else. */
extern asmlinkage void __init __noreturn start_kernel(void);
extern void __init __noreturn arch_call_rest_init(void);
extern void __ref __noreturn rest_init(void);
#endif /* _LINUX_START_KERNEL_H */

4
include/linux/win_minmax.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/**
* lib/minmax.c: windowed min/max tracker by Kathleen Nichols.
/*
* win_minmax.h: windowed min/max tracker by Kathleen Nichols.
*
*/
#ifndef MINMAX_H

9
init/main.c
View File

@ -683,7 +683,7 @@ static void __init setup_command_line(char *command_line)
static __initdata DECLARE_COMPLETION(kthreadd_done);
noinline void __ref __noreturn rest_init(void)
static noinline void __ref __noreturn rest_init(void)
{
struct task_struct *tsk;
int pid;
@ -828,11 +828,6 @@ static int __init early_randomize_kstack_offset(char *buf)
early_param("randomize_kstack_offset", early_randomize_kstack_offset);
#endif
void __init __weak __noreturn arch_call_rest_init(void)
{
rest_init();
}
static void __init print_unknown_bootoptions(void)
{
char *unknown_options;
@ -1076,7 +1071,7 @@ void start_kernel(void)
kcsan_init();
/* Do the rest non-__init'ed, we're now alive */
arch_call_rest_init();
rest_init();
/*
* Avoid stack canaries in callers of boot_init_stack_canary for gcc-10

37
ipc/ipc_sysctl.c
View File

@ -14,6 +14,7 @@
#include <linux/ipc_namespace.h>
#include <linux/msg.h>
#include <linux/slab.h>
#include <linux/cred.h>
#include "util.h"
static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
@ -190,25 +191,57 @@ static int set_is_seen(struct ctl_table_set *set)
return &current->nsproxy->ipc_ns->ipc_set == set;
}
static void ipc_set_ownership(struct ctl_table_header *head,
struct ctl_table *table,
kuid_t *uid, kgid_t *gid)
{
struct ipc_namespace *ns =
container_of(head->set, struct ipc_namespace, ipc_set);
kuid_t ns_root_uid = make_kuid(ns->user_ns, 0);
kgid_t ns_root_gid = make_kgid(ns->user_ns, 0);
*uid = uid_valid(ns_root_uid) ? ns_root_uid : GLOBAL_ROOT_UID;
*gid = gid_valid(ns_root_gid) ? ns_root_gid : GLOBAL_ROOT_GID;
}
static int ipc_permissions(struct ctl_table_header *head, struct ctl_table *table)
{
int mode = table->mode;
#ifdef CONFIG_CHECKPOINT_RESTORE
struct ipc_namespace *ns = current->nsproxy->ipc_ns;
struct ipc_namespace *ns =
container_of(head->set, struct ipc_namespace, ipc_set);
if (((table->data == &ns->ids[IPC_SEM_IDS].next_id) ||
(table->data == &ns->ids[IPC_MSG_IDS].next_id) ||
(table->data == &ns->ids[IPC_SHM_IDS].next_id)) &&
checkpoint_restore_ns_capable(ns->user_ns))
mode = 0666;
else
#endif
return mode;
{
kuid_t ns_root_uid;
kgid_t ns_root_gid;
ipc_set_ownership(head, table, &ns_root_uid, &ns_root_gid);
if (uid_eq(current_euid(), ns_root_uid))
mode >>= 6;
else if (in_egroup_p(ns_root_gid))
mode >>= 3;
}
mode &= 7;
return (mode << 6) | (mode << 3) | mode;
}
static struct ctl_table_root set_root = {
.lookup = set_lookup,
.permissions = ipc_permissions,
.set_ownership = ipc_set_ownership,
};
bool setup_ipc_sysctls(struct ipc_namespace *ns)

36
ipc/mq_sysctl.c
View File

@ -12,6 +12,7 @@
#include <linux/stat.h>
#include <linux/capability.h>
#include <linux/slab.h>
#include <linux/cred.h>
static int msg_max_limit_min = MIN_MSGMAX;
static int msg_max_limit_max = HARD_MSGMAX;
@ -76,8 +77,43 @@ static int set_is_seen(struct ctl_table_set *set)
return &current->nsproxy->ipc_ns->mq_set == set;
}
static void mq_set_ownership(struct ctl_table_header *head,
struct ctl_table *table,
kuid_t *uid, kgid_t *gid)
{
struct ipc_namespace *ns =
container_of(head->set, struct ipc_namespace, mq_set);
kuid_t ns_root_uid = make_kuid(ns->user_ns, 0);
kgid_t ns_root_gid = make_kgid(ns->user_ns, 0);
*uid = uid_valid(ns_root_uid) ? ns_root_uid : GLOBAL_ROOT_UID;
*gid = gid_valid(ns_root_gid) ? ns_root_gid : GLOBAL_ROOT_GID;
}
static int mq_permissions(struct ctl_table_header *head, struct ctl_table *table)
{
int mode = table->mode;
kuid_t ns_root_uid;
kgid_t ns_root_gid;
mq_set_ownership(head, table, &ns_root_uid, &ns_root_gid);
if (uid_eq(current_euid(), ns_root_uid))
mode >>= 6;
else if (in_egroup_p(ns_root_gid))
mode >>= 3;
mode &= 7;
return (mode << 6) | (mode << 3) | mode;
}
static struct ctl_table_root set_root = {
.lookup = set_lookup,
.permissions = mq_permissions,
.set_ownership = mq_set_ownership,
};
bool setup_mq_sysctls(struct ipc_namespace *ns)

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