- Add iWARP port mapper to avoid conflicts between RDMA and normal
stack TCP connections.
- Fixes for i386 / x86-64 structure padding differences (ABI
compatibility for 32-on-64) from Yann Droneaud.
- A pile of SRP initiator fixes from Bart Van Assche.
- Fixes for a writeback / memory allocation deadlock with NFS over
IPoIB connected mode from Jiri Kosina.
- The usual fixes and cleanups to mlx4, mlx5, cxgb4 and other
low-level drivers.
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull main InfiniBand/RDMA updates from Roland Dreier:
- add iWARP port mapper to avoid conflicts between RDMA and normal
stack TCP connections.
- fixes for i386 / x86-64 structure padding differences (ABI
compatibility for 32-on-64) from Yann Droneaud.
- a pile of SRP initiator fixes from Bart Van Assche.
- fixes for a writeback / memory allocation deadlock with NFS over
IPoIB connected mode from Jiri Kosina.
- the usual fixes and cleanups to mlx4, mlx5, cxgb4 and other low-level
drivers.
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (61 commits)
RDMA/cxgb4: Add support for iWARP Port Mapper user space service
RDMA/nes: Add support for iWARP Port Mapper user space service
RDMA/core: Add support for iWARP Port Mapper user space service
IB/mlx4: Fix gfp passing in create_qp_common()
IB/umad: Fix use-after-free on close
IB/core: Fix kobject leak on device register error flow
RDMA/cxgb4: add missing padding at end of struct c4iw_alloc_ucontext_resp
mlx4_core: Fix GFP flags parameters to be gfp_t
IB/core: Fix port kobject deletion during error flow
IB/core: Remove unneeded kobject_get/put calls
IB/core: Fix sparse warnings about redeclared functions
IB/mad: Fix sparse warning about gfp_t use
IB/mlx4: Implement IB_QP_CREATE_USE_GFP_NOIO
IB: Add a QP creation flag to use GFP_NOIO allocations
IB: Return error for unsupported QP creation flags
IB: Allow build of hw/ and ulp/ subdirectories independently
mlx4_core: Move handling of MLX4_QP_ST_MLX to proper switch statement
RDMA/cxgb4: Add missing padding at end of struct c4iw_create_cq_resp
IB/srp: Avoid problems if a header uses pr_fmt
IB/umad: Fix error handling
...
This patch adds iWARP Port Mapper (IWPM) Version 2 support. The iWARP
Port Mapper implementation is based on the port mapper specification
section in the Sockets Direct Protocol paper -
http://www.rdmaconsortium.org/home/draft-pinkerton-iwarp-sdp-v1.0.pdf
Existing iWARP RDMA providers use the same IP address as the native
TCP/IP stack when creating RDMA connections. They need a mechanism to
claim the TCP ports used for RDMA connections to prevent TCP port
collisions when other host applications use TCP ports. The iWARP Port
Mapper provides a standard mechanism to accomplish this. Without this
service it is possible for RDMA application to bind/listen on the same
port which is already being used by native TCP host application. If
that happens the incoming TCP connection data can be passed to the
RDMA stack with error.
The iWARP Port Mapper solution doesn't contain any changes to the
existing network stack in the kernel space. All the changes are
contained with the infiniband tree and also in user space.
The iWARP Port Mapper service is implemented as a user space daemon
process. Source for the IWPM service is located at
http://git.openfabrics.org/git?p=~tnikolova/libiwpm-1.0.0/.git;a=summary
The iWARP driver (port mapper client) sends to the IWPM service the
local IP address and TCP port it has received from the RDMA
application, when starting a connection. The IWPM service performs a
socket bind from user space to get an available TCP port, called a
mapped port, and communicates it back to the client. In that sense,
the IWPM service is used to map the TCP port, which the RDMA
application uses to any port available from the host TCP port
space. The mapped ports are used in iWARP RDMA connections to avoid
collisions with native TCP stack which is aware that these ports are
taken. When an RDMA connection using a mapped port is terminated, the
client notifies the IWPM service, which then releases the TCP port.
The message exchange between the IWPM service and the iWARP drivers
(between user space and kernel space) is implemented using netlink
sockets.
1) Netlink interface functions are added: ibnl_unicast() and
ibnl_mulitcast() for sending netlink messages to user space
2) The signature of the existing ibnl_put_msg() is changed to be more
generic
3) Two netlink clients are added: RDMA_NL_NES, RDMA_NL_C4IW
corresponding to the two iWarp drivers - nes and cxgb4 which use
the IWPM service
4) Enums are added to enumerate the attributes in the netlink
messages, which are exchanged between the user space IWPM service
and the iWARP drivers
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: PJ Waskiewicz <pj.waskiewicz@solidfire.com>
[ Fold in range checking fixes and nlh_next removal as suggested by Dan
Carpenter and Steve Wise. Fix sparse endianness in hash. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
Pull security layer updates from Serge Hallyn:
"This is a merge of James Morris' security-next tree from 3.14 to
yesterday's master, plus four patches from Paul Moore which are in
linux-next, plus one patch from Mimi"
* 'serge-next-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security:
ima: audit log files opened with O_DIRECT flag
selinux: conditionally reschedule in hashtab_insert while loading selinux policy
selinux: conditionally reschedule in mls_convert_context while loading selinux policy
selinux: reject setexeccon() on MNT_NOSUID applications with -EACCES
selinux: Report permissive mode in avc: denied messages.
Warning in scanf string typing
Smack: Label cgroup files for systemd
Smack: Verify read access on file open - v3
security: Convert use of typedef ctl_table to struct ctl_table
Smack: bidirectional UDS connect check
Smack: Correctly remove SMACK64TRANSMUTE attribute
SMACK: Fix handling value==NULL in post setxattr
bugfix patch for SMACK
Smack: adds smackfs/ptrace interface
Smack: unify all ptrace accesses in the smack
Smack: fix the subject/object order in smack_ptrace_traceme()
Minor improvement of 'smack_sb_kern_mount'
smack: fix key permission verification
KEYS: Move the flags representing required permission to linux/key.h
This patch-set includes the following major enhancement patches.
o enhance wait_on_page_writeback
o support SEEK_DATA and SEEK_HOLE
o enhance readahead flows
o enhance IO flushes
o support fiemap
o add some tracepoints
The other bug fixes are as follows.
o fix to support a large volume > 2TB correctly
o recovery bug fix wrt fallocated space
o fix recursive lock on xattr operations
o fix some cases on the remount flow
And, there are a bunch of cleanups.
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Merge tag 'for-f2fs-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, there is no special interesting feature, but we've
investigated a couple of tuning points with respect to the I/O flow.
Several major bug fixes and a bunch of clean-ups also have been made.
This patch-set includes the following major enhancement patches:
- enhance wait_on_page_writeback
- support SEEK_DATA and SEEK_HOLE
- enhance readahead flows
- enhance IO flushes
- support fiemap
- add some tracepoints
The other bug fixes are as follows:
- fix to support a large volume > 2TB correctly
- recovery bug fix wrt fallocated space
- fix recursive lock on xattr operations
- fix some cases on the remount flow
And, there are a bunch of cleanups"
* tag 'for-f2fs-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (52 commits)
f2fs: support f2fs_fiemap
f2fs: avoid not to call remove_dirty_inode
f2fs: recover fallocated space
f2fs: fix to recover data written by dio
f2fs: large volume support
f2fs: avoid crash when trace f2fs_submit_page_mbio event in ra_sum_pages
f2fs: avoid overflow when large directory feathure is enabled
f2fs: fix recursive lock by f2fs_setxattr
MAINTAINERS: add a co-maintainer from samsung for F2FS
MAINTAINERS: change the email address for f2fs
f2fs: use inode_init_owner() to simplify codes
f2fs: avoid to use slab memory in f2fs_issue_flush for efficiency
f2fs: add a tracepoint for f2fs_read_data_page
f2fs: add a tracepoint for f2fs_write_{meta,node,data}_pages
f2fs: add a tracepoint for f2fs_write_{meta,node,data}_page
f2fs: add a tracepoint for f2fs_write_end
f2fs: add a tracepoint for f2fs_write_begin
f2fs: fix checkpatch warning
f2fs: deactivate inode page if the inode is evicted
f2fs: decrease the lock granularity during write_begin
...
This patch consists of the usual driver updates (qla2xxx, qla4xxx, lpfc,
be2iscsi, fnic, ufs, NCR5380) The NCR5380 is the addition to maintained status
of a long neglected driver for older hardware. In addition there are a lot of
minor fixes and cleanups and some more updates to make scsi mq ready.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch consists of the usual driver updates (qla2xxx, qla4xxx,
lpfc, be2iscsi, fnic, ufs, NCR5380) The NCR5380 is the addition to
maintained status of a long neglected driver for older hardware. In
addition there are a lot of minor fixes and cleanups and some more
updates to make scsi mq ready"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (130 commits)
include/scsi/osd_protocol.h: remove unnecessary __constant
mvsas: Recognise device/subsystem 9485/9485 as 88SE9485
Revert "be2iscsi: Fix processing cqe for cxn whose endpoint is freed"
mptfusion: fix msgContext in mptctl_hp_hostinfo
acornscsi: remove linked command support
scsi/NCR5380: dprintk macro
fusion: Remove use of DEF_SCSI_QCMD
fusion: Add free msg frames to the head, not tail of list
mpt2sas: Add free smids to the head, not tail of list
mpt2sas: Remove use of DEF_SCSI_QCMD
mpt2sas: Remove uses of serial_number
mpt3sas: Remove use of DEF_SCSI_QCMD
mpt3sas: Remove uses of serial_number
qla2xxx: Use kmemdup instead of kmalloc + memcpy
qla4xxx: Use kmemdup instead of kmalloc + memcpy
qla2xxx: fix incorrect debug printk
be2iscsi: Bump the driver version
be2iscsi: Fix processing cqe for cxn whose endpoint is freed
be2iscsi: Fix destroy MCC-CQ before MCC-EQ is destroyed
be2iscsi: Fix memory corruption in MBX path
...
Pull input updates from Dmitry Torokhov:
"A big update to the Atmel touchscreen driver, devm support for polled
input devices, several drivers have been converted to using managed
resources, and assorted driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (87 commits)
Input: synaptics - fix resolution for manually provided min/max
Input: atmel_mxt_ts - fix invalid return from mxt_get_bootloader_version
Input: max8997_haptic - add error handling for regulator and pwm
Input: elantech - don't set bit 1 of reg_10 when the no_hw_res quirk is set
Input: elantech - deal with clickpads reporting right button events
Input: edt-ft5x06 - fix an i2c write for M09 support
Input: omap-keypad - remove platform data support
ARM: OMAP2+: remove unused omap4-keypad file and code
Input: ab8500-ponkey - switch to using managed resources
Input: max8925_onkey - switch to using managed resources
Input: 88pm860x-ts - switch to using managed resources
Input: 88pm860x_onkey - switch to using managed resources
Input: intel-mid-touch - switch to using managed resources
Input: wacom - process outbound for newer Cintiqs
Input: wacom - set stylus_in_proximity when pen is in range
DTS: ARM: OMAP3-N900: Add tsc2005 support
Input: tsc2005 - add DT support
Input: add common DT binding for touchscreens
Input: jornada680_kbd - switch top using managed resources
Input: adp5520-keys - switch to using managed resources
...
Pull MIPS updates from Ralf Baechle:
- three fixes for 3.15 that didn't make it in time
- limited Octeon 3 support.
- paravirtualization support
- improvment to platform support for Netlogix SOCs.
- add support for powering down the Malta eval board in software
- add many instructions to the in-kernel microassembler.
- add support for the BPF JIT.
- minor cleanups of the BCM47xx code.
- large cleanup of math emu code resulting in significant code size
reduction, better readability of the code and more accurate
emulation.
- improvments to the MIPS CPS code.
- support C3 power status for the R4k count/compare clock device.
- improvments to the GIO support for older SGI workstations.
- increase number of supported CPUs to 256; this can be reached on
certain embedded multithreaded ccNUMA configurations.
- various small cleanups, updates and fixes
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (173 commits)
MIPS: IP22/IP28: Improve GIO support
MIPS: Octeon: Add twsi interrupt initialization for OCTEON 3XXX, 5XXX, 63XX
DEC: Document the R4k MB ASIC mini interrupt controller
DEC: Add self as the maintainer
MIPS: Add microMIPS MSA support.
MIPS: Replace calls to obsolete strict_strto call with kstrto* equivalents.
MIPS: Replace obsolete strict_strto call with kstrto
MIPS: BFP: Simplify code slightly.
MIPS: Call find_vma with the mmap_sem held
MIPS: Fix 'write_msa_##' inline macro.
MIPS: Fix MSA toolchain support detection.
mips: Update the email address of Geert Uytterhoeven
MIPS: Add minimal defconfig for mips_paravirt
MIPS: Enable build for new system 'paravirt'
MIPS: paravirt: Add pci controller for virtio
MIPS: Add code for new system 'paravirt'
MIPS: Add functions for hypervisor call
MIPS: OCTEON: Add OCTEON3 to __get_cpu_type
MIPS: Add function get_ebase_cpunum
MIPS: Add minimal support for OCTEON3 to c-r4k.c
...
to help out the rest of the kernel to ease their use of trace events.
The big change for this release is the allowing of other tracers,
such as the latency tracers, to be used in the trace instances and allow
for function or function graph tracing to be in the top level
simultaneously.
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Merge tag 'trace-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"Lots of tweaks, small fixes, optimizations, and some helper functions
to help out the rest of the kernel to ease their use of trace events.
The big change for this release is the allowing of other tracers, such
as the latency tracers, to be used in the trace instances and allow
for function or function graph tracing to be in the top level
simultaneously"
* tag 'trace-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (44 commits)
tracing: Fix memory leak on instance deletion
tracing: Fix leak of ring buffer data when new instances creation fails
tracing/kprobes: Avoid self tests if tracing is disabled on boot up
tracing: Return error if ftrace_trace_arrays list is empty
tracing: Only calculate stats of tracepoint benchmarks for 2^32 times
tracing: Convert stddev into u64 in tracepoint benchmark
tracing: Introduce saved_cmdlines_size file
tracing: Add __get_dynamic_array_len() macro for trace events
tracing: Remove unused variable in trace_benchmark
tracing: Eliminate double free on failure of allocation on boot up
ftrace/x86: Call text_ip_addr() instead of the duplicated code
tracing: Print max callstack on stacktrace bug
tracing: Move locking of trace_cmdline_lock into start/stop seq calls
tracing: Try again for saved cmdline if failed due to locking
tracing: Have saved_cmdlines use the seq_read infrastructure
tracing: Add tracepoint benchmark tracepoint
tracing: Print nasty banner when trace_printk() is in use
tracing: Add funcgraph_tail option to print function name after closing braces
tracing: Eliminate duplicate TRACE_GRAPH_PRINT_xx defines
tracing: Add __bitmask() macro to trace events to cpumasks and other bitmasks
...
Pull cgroup updates from Tejun Heo:
"A lot of activities on cgroup side. Heavy restructuring including
locking simplification took place to improve the code base and enable
implementation of the unified hierarchy, which currently exists behind
a __DEVEL__ mount option. The core support is mostly complete but
individual controllers need further work. To explain the design and
rationales of the the unified hierarchy
Documentation/cgroups/unified-hierarchy.txt
is added.
Another notable change is css (cgroup_subsys_state - what each
controller uses to identify and interact with a cgroup) iteration
update. This is part of continuing updates on css object lifetime and
visibility. cgroup started with reference count draining on removal
way back and is now reaching a point where csses behave and are
iterated like normal refcnted objects albeit with some complexities to
allow distinguishing the state where they're being deleted. The css
iteration update isn't taken advantage of yet but is planned to be
used to simplify memcg significantly"
* 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (77 commits)
cgroup: disallow disabled controllers on the default hierarchy
cgroup: don't destroy the default root
cgroup: disallow debug controller on the default hierarchy
cgroup: clean up MAINTAINERS entries
cgroup: implement css_tryget()
device_cgroup: use css_has_online_children() instead of has_children()
cgroup: convert cgroup_has_live_children() into css_has_online_children()
cgroup: use CSS_ONLINE instead of CGRP_DEAD
cgroup: iterate cgroup_subsys_states directly
cgroup: introduce CSS_RELEASED and reduce css iteration fallback window
cgroup: move cgroup->serial_nr into cgroup_subsys_state
cgroup: link all cgroup_subsys_states in their sibling lists
cgroup: move cgroup->sibling and ->children into cgroup_subsys_state
cgroup: remove cgroup->parent
device_cgroup: remove direct access to cgroup->children
memcg: update memcg_has_children() to use css_next_child()
memcg: remove tasks/children test from mem_cgroup_force_empty()
cgroup: remove css_parent()
cgroup: skip refcnting on normal root csses and cgrp_dfl_root self css
cgroup: use cgroup->self.refcnt for cgroup refcnting
...
Pull libata updates from Tejun Heo:
"Nothing too interesting - another ahci platform driver variant,
additional controller support, minor fixes and cleanups"
* 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: Add Device ID for HighPoint RocketRaid 642L
ata: ep93xx: use dmaengine_prep_slave_sg api instead of internal callback
ahci: add PCI ID for Marvell 88SE91A0 SATA Controller
sata_fsl: remove check for CONFIG_MPC8315_DS
ahci: add support for Hisilicon sata
libahci_platform: add host_flags parameter in ahci_platform_init_host()
ata: ahci: append new hflag AHCI_HFLAG_NO_FBS
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
ata: ahci_mvebu: new driver for Marvell Armada 380 AHCI interfaces
Documentation: dt-bindings: reformat and order list of ahci-platform compatibles
libata-sff: remove dead code
ata: SATL compliance for Inquiry Product Revision
pata_octeon_cf: use devm_kzalloc() to allocate cf_port
Pull workqueue updates from Tejun Heo:
"Lai simplified worker destruction path and internal workqueue locking
and there are some other minor changes.
Except for the removal of some long-deprecated interfaces which
haven't had any in-kernel user for quite a while, there shouldn't be
any difference to workqueue users"
* 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
kernel/workqueue.c: pr_warning/pr_warn & printk/pr_info
workqueue: remove the confusing POOL_FREEZING
workqueue: rename first_worker() to first_idle_worker()
workqueue: remove unused work_clear_pending()
workqueue: remove unused WORK_CPU_END
workqueue: declare system_highpri_wq
workqueue: use generic attach/detach routine for rescuers
workqueue: separate pool-attaching code out from create_worker()
workqueue: rename manager_mutex to attach_mutex
workqueue: narrow the protection range of manager_mutex
workqueue: convert worker_idr to worker_ida
workqueue: separate iteration role from worker_idr
workqueue: destroy worker directly in the idle timeout handler
workqueue: async worker destruction
workqueue: destroy_worker() should destroy idle workers only
workqueue: use manager lock only to protect worker_idr
workqueue: Remove deprecated system_nrt[_freezable]_wq
workqueue: Remove deprecated flush[_delayed]_work_sync()
kernel/workqueue.c: pr_warning/pr_warn & printk/pr_info
workqueue: simplify wq_update_unbound_numa() by jumping to use_dfl_pwq if the target cpumask equals wq's
Pull percpu updates from Tejun Heo:
"Nothing too exciting. percpu_ref is going through some interface
changes and getting new features with more changes in the pipeline but
given its young age and few users, it's very low impact"
* 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu-refcount: implement percpu_ref_tryget()
percpu-refcount: rename percpu_ref_tryget() to percpu_ref_tryget_live()
percpu: Replace __get_cpu_var with this_cpu_ptr
collapse_range and zero_range fallocate functions. In addition,
improve the scalability of adding and remove inodes from the orphan
list.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Clean ups and miscellaneous bug fixes, in particular for the new
collapse_range and zero_range fallocate functions. In addition,
improve the scalability of adding and remove inodes from the orphan
list"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits)
ext4: handle symlink properly with inline_data
ext4: fix wrong assert in ext4_mb_normalize_request()
ext4: fix zeroing of page during writeback
ext4: remove unused local variable "stored" from ext4_readdir(...)
ext4: fix ZERO_RANGE test failure in data journalling
ext4: reduce contention on s_orphan_lock
ext4: use sbi in ext4_orphan_{add|del}()
ext4: use EXT_MAX_BLOCKS in ext4_es_can_be_merged()
ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access
ext4: remove unnecessary double parentheses
ext4: do not destroy ext4_groupinfo_caches if ext4_mb_init() fails
ext4: make local functions static
ext4: fix block bitmap validation when bigalloc, ^flex_bg
ext4: fix block bitmap initialization under sparse_super2
ext4: find the group descriptors on a 1k-block bigalloc,meta_bg filesystem
ext4: avoid unneeded lookup when xattr name is invalid
ext4: fix data integrity sync in ordered mode
ext4: remove obsoleted check
ext4: add a new spinlock i_raw_lock to protect the ext4's raw inode
ext4: fix locking for O_APPEND writes
...
Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.
* accumulated work in next: (6809 commits)
ufs: sb mutex merge + mutex_destroy
powerpc: update comments for generic idle conversion
cris: update comments for generic idle conversion
idle: remove cpu_idle() forward declarations
nbd: zero from and len fields in NBD_CMD_DISCONNECT.
mm: convert some level-less printks to pr_*
MAINTAINERS: adi-buildroot-devel is moderated
MAINTAINERS: add linux-api for review of API/ABI changes
mm/kmemleak-test.c: use pr_fmt for logging
fs/dlm/debug_fs.c: replace seq_printf by seq_puts
fs/dlm/lockspace.c: convert simple_str to kstr
fs/dlm/config.c: convert simple_str to kstr
mm: mark remap_file_pages() syscall as deprecated
mm: memcontrol: remove unnecessary memcg argument from soft limit functions
mm: memcontrol: clean up memcg zoneinfo lookup
mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
mm/mempool.c: update the kmemleak stack trace for mempool allocations
lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
mm: introduce kmemleak_update_trace()
mm/kmemleak.c: use %u to print ->checksum
...
driver additions and fixes. There are additions to the clock core code
for some of the basic types (e.g. the common divider type has some fixes
and featured added to it).
One minor annoyance is a last-minute dependency that wasn't handled
quite right. ba0fae3 in this pull request depends on
include/dt-bindings/clock/berlin2.h, which is already in your tree via
the arm-soc pull request. Building for the berlin platform will break
when the clk tree is built on it's own, but merged into your master
branch everything should be fine.
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Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux into next
Pull clock framework updates from Mike Turquette:
"The clock framework changes for 3.16 are pretty typical: mostly clock
driver additions and fixes. There are additions to the clock core
code for some of the basic types (e.g. the common divider type has
some fixes and featured added to it).
One minor annoyance is a last-minute dependency that wasn't handled
quite right. Commit ba0fae3b06a6 ("clk: berlin: add core clock driver
for BG2/BG2CD") in this pull request depends on
include/dt-bindings/clock/berlin2.h, which is already in your tree via
the arm-soc pull request. Building for the berlin platform will break
when the clk tree is built on it's own, but merged into your master
branch everything should be fine"
* tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux: (75 commits)
mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs
clk: export __clk_round_rate for providers
clk: versatile: free icst on error return
clk: qcom: Return error pointers for unimplemented clocks
clk: qcom: Support msm8974pro global clock control hardware
clk: qcom: Properly support display clocks on msm8974
clk: qcom: Support display RCG clocks
clk: qcom: Return highest rate when round_rate() exceeds plan
clk: qcom: Fix mmcc-8974's PLL configurations
clk: qcom: Fix clk_rcg2_is_enabled() check
clk: berlin: add core clock driver for BG2Q
clk: berlin: add core clock driver for BG2/BG2CD
clk: berlin: add driver for BG2x complex divider cells
clk: berlin: add driver for BG2x simple PLLs
clk: berlin: add driver for BG2x audio/video PLL
clk: st: Terminate of match table
clk/exynos4: Fix compilation warning
ARM: shmobile: r8a7779: Add clock index macros for DT sources
clk: divider: Fix overflow in clk_divider_bestdiv
clk: u300: Terminate of match table
...
Merge more updates from Andrew Morton:
- Most of the rest of MM.
This includes "mark remap_file_pages syscall as deprecated" but the
actual "replace remap_file_pages syscall with emulation" is held
back. I guess we'll need to work out when to pull the trigger on
that one.
- various minor cleanups to obscure filesystems
- the drivers/rtc queue
- hfsplus updates
- ufs, hpfs, fatfs, affs, reiserfs
- Documentation/
- signals
- procfs
- cpu hotplug
- lib/idr.c
- rapidio
- sysctl
- ipc updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (171 commits)
ufs: sb mutex merge + mutex_destroy
powerpc: update comments for generic idle conversion
cris: update comments for generic idle conversion
idle: remove cpu_idle() forward declarations
nbd: zero from and len fields in NBD_CMD_DISCONNECT.
mm: convert some level-less printks to pr_*
MAINTAINERS: adi-buildroot-devel is moderated
MAINTAINERS: add linux-api for review of API/ABI changes
mm/kmemleak-test.c: use pr_fmt for logging
fs/dlm/debug_fs.c: replace seq_printf by seq_puts
fs/dlm/lockspace.c: convert simple_str to kstr
fs/dlm/config.c: convert simple_str to kstr
mm: mark remap_file_pages() syscall as deprecated
mm: memcontrol: remove unnecessary memcg argument from soft limit functions
mm: memcontrol: clean up memcg zoneinfo lookup
mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
mm/mempool.c: update the kmemleak stack trace for mempool allocations
lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
mm: introduce kmemleak_update_trace()
mm/kmemleak.c: use %u to print ->checksum
...
After all architectures were converted to the generic idle framework,
commit d190e8195b90 ("idle: Remove GENERIC_IDLE_LOOP config switch")
removed the last caller of cpu_idle(). The forward declarations in
header files were forgotten.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The memory allocation stack trace is not always useful for debugging a
memory leak (e.g. radix_tree_preload). This function, when called,
updates the stack trace for an already allocated object.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This typedef is unnecessary and should just be removed.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is useful in the future and allows users to better understand the
reasoning behind the changes.
Also use UL as we're dealing with it anyways.
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
System V shared memory
a) can be abused to trigger out-of-memory conditions and the standard
measures against out-of-memory do not work:
- it is not possible to use setrlimit to limit the size of shm segments.
- segments can exist without association with any processes, thus
the oom-killer is unable to free that memory.
b) is typically used for shared information - today often multiple GB.
(e.g. database shared buffers)
The current default is a maximum segment size of 32 MB and a maximum
total size of 8 GB. This is often too much for a) and not enough for
b), which means that lots of users must change the defaults.
This patch increases the default limits (nearly) to the maximum, which
is perfect for case b). The defaults are used after boot and as the
initial value for each new namespace.
Admins/distros that need a protection against a) should reduce the
limits and/or enable shm_rmid_forced.
Unix has historically required setting these limits for shared memory,
and Linux inherited such behavior. The consequence of this is added
complexity for users and administrators. One very common example are
Database setup/installation documents and scripts, where users must
manually calculate the values for these limits. This also requires
(some) knowledge of how the underlying memory management works, thus
causing, in many occasions, the limits to just be flat out wrong.
Disabling these limits sooner could have saved companies a lot of time,
headaches and money for support. But it's never too late, simplify
users life now.
Further notes:
- The patch only changes default, overrides behave as before:
# sysctl kernel.shmall=33554432
would recreate the previous limit for SHMMAX (for the current namespace).
- Disabling sysv shm allocation is possible with:
# sysctl kernel.shmall=0
(not a new feature, also per-namespace)
- The limits are intentionally set to a value slightly less than ULONG_MAX,
to avoid triggering overflows in user space apps.
[not unreasonable, see http://marc.info/?l=linux-mm&m=139638334330127]
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Reported-by: Davidlohr Bueso <davidlohr@hp.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When running sparse over drivers/media/v4l2-core/v4l2-ioctl.c I get these
errors:
drivers/media/v4l2-core/v4l2-ioctl.c:2043:9: error: bad integer constant expression
drivers/media/v4l2-core/v4l2-ioctl.c:2044:9: error: bad integer constant expression
drivers/media/v4l2-core/v4l2-ioctl.c:2045:9: error: bad integer constant expression
drivers/media/v4l2-core/v4l2-ioctl.c:2046:9: error: bad integer constant expression
etc.
The root cause of that turns out to be in include/asm-generic/ioctl.h:
#include <uapi/asm-generic/ioctl.h>
/* provoke compile error for invalid uses of size argument */
extern unsigned int __invalid_size_argument_for_IOC;
#define _IOC_TYPECHECK(t) \
((sizeof(t) == sizeof(t[1]) && \
sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
sizeof(t) : __invalid_size_argument_for_IOC)
If it is defined as this (as is already done if __KERNEL__ is not defined):
#define _IOC_TYPECHECK(t) (sizeof(t))
then all is well with the world.
This patch allows sparse to work correctly.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
idr_layer->layer is always accessed in read path, move it in the front.
idr_layer->bitmap is moved on the bottom. And rcu_head shares with
bitmap due to they do not be accessed at the same time.
idr->id_free/id_free_cnt/lock are free list fields, and moved to the
bottom. They will be removed in near future.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now that allow_signal() is really trivial we can unify it with
disallow_signal(). Add the new helper, kernel_sigaction(), and
reimplement allow_signal/disallow_signal as a trivial wrappers.
This saves one EXPORT_SYMBOL() and the new helper can have more users.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move the declaration/definition of allow_signal/disallow_signal to
signal.h/signal.c. The new place is more logical and allows to use the
static helpers in signal.c (see the next changes).
While at it, make them return void and remove the valid_signal() check.
Nobody checks the returned value, and in-kernel users must not pass the
wrong signal number.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It has no users and it doesn't look useful. I do not know why/when it was
introduced, I can't even find any user in the git history.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When tracing a process in another pid namespace, it's important for fork
event messages to contain the child's pid as seen from the tracer's pid
namespace, not the parent's. Otherwise, the tracer won't be able to
correlate the fork event with later SIGTRAP signals it receives from the
child.
We still risk a race condition if a ptracer from a different pid
namespace attaches after we compute the pid_t value. However, sending a
bogus fork event message in this unlikely scenario is still a vast
improvement over the status quo where we always send bogus fork event
messages to debuggers in a different pid namespace than the forking
process.
Signed-off-by: Matthew Dempsky <mdempsky@chromium.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Julien Tinnes <jln@chromium.org>
Cc: Roland McGrath <mcgrathr@chromium.org>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This brings in drivers/char/rtc.c functionality required for DECstation
and, should the maintainers decide to switch, Alpha systems to use
rtc-cmos.
Specifically these features are made available:
* RTC iomem rather than x86/PCI port I/O mapping, controlled with the
RTC_IOMAPPED macro as with the original driver. The DS1287A chip in all
DECstation systems is mapped in the host bus address space as a
contiguous block of 64 32-bit words of which the least significant byte
accesses the RTC chip for both reads and writes. All the address and
data window register accesses are made transparently by the chipset glue
logic so that the device appears directly mapped on the host bus.
* A way to set the size of the address space explicitly with the
newly-added `address_space' member of the platform part of the RTC
device structure. This avoids the unreliable heuristics that does not
work in a setup where the RTC is not explicitly accessed with the usual
address and data window register pair.
* The ability to use the RTC periodic interrupt as a system clock
device, which is implemented by arch/mips/kernel/cevt-ds1287.c for
DECstation systems and takes the RTC interrupt away from the RTC driver.
Eventually hooking back to the clock device's interrupt handler should
be possible for the purpose of the alarm clock and possibly also
update-in-progress interrupt, but this is not done by this change.
o To avoid interfering with the clock interrupt all the places where
the RTC interrupt mask is fiddled with are only executed if and IRQ
has been assigned to the RTC driver.
o To avoid changing the clock setup Register A is not fiddled with
if CMOS_RTC_FLAGS_NOFREQ is set in the newly-added `flags' member of
the platform part of the RTC device structure. Originally, in
drivers/char/rtc.c, this was keyed with the absence of the RTC
interrupt, just like the interrupt mask, but there only the periodic
interrupt frequency is set, whereas rtc-cmos also sets the divider
bits. Therefore a new flag is introduced so that systems where the
RTC interrupt is not usable rather than used as a system clock device
can fully initialise the RTC.
* A small clean-up is made to the IRQ assignment code that makes the IRQ
number hardcoded to -1 rather than arbitrary -ENXIO (or whatever error
happens to be returned by platform_get_irq) where no IRQ has been
assigned to the RTC driver (NO_IRQ might be another candidate, but it
looks like this macro has inconsistent or missing definitions and
limited use and might therefore be unsafe).
Verified to work correctly with a DECstation 5000/240 system.
[akpm@linux-foundation.org: fix weird code layout]
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull updates and DT support for media engines from Mauro Carvalho Chehab.
For Analog Devices ADV7604 and the Renesas VSP1 video processing engines.
* 'topic/vsp1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] v4l: vsp1: Add DT support
[media] v4l: vsp1: Add DT bindings documentation
[media] v4l: vsp1: Add BRU support
[media] v4l: vsp1: Support multi-input entities
[media] v4l: vsp1: uds: Enable scaling of alpha layer
[media] v4l: vsp1: Remove unexisting rt clocks
* 'topic/adv76xx' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (21 commits)
[media] adv7604: Add LLC polarity configuration
[media] adv7604: Set HPD GPIO direction to output
[media] adv7604: Add endpoint properties to DT bindings
[media] adv7604: Add DT support
[media] adv7604: Specify the default input through platform data
[media] adv7604: Support hot-plug detect control through a GPIO
[media] adv7604: Sort headers alphabetically
[media] adv7604: Replace *_and_or() functions with *_clr_set()
[media] adv7604: Store I2C addresses and clients in arrays
[media] adv7604: Inline the to_sd function
[media] v4l: subdev: Remove deprecated video-level DV timings operations
[media] adv7604: Remove deprecated video-level DV timings operations
[media] adv7604: Add pad-level DV timings support
[media] adv7604: Make output format configurable through pad format operations
[media] adv7604: Add sink pads
[media] adv7604: Remove subdev control handlers
[media] adv7604: Add adv7611 support
[media] adv7604: Cache register contents when reading multiple bits
[media] adv7604: Add 16-bit read functions for CP and HDMI
[media] adv7604: Don't put info string arrays on the stack
...
The changes include:
* A new IOMMU driver for ARM Renesas SOCs
* Updates and fixes for the ARM Exynos driver to bring it closer
to a usable state again
* Convert the AMD IOMMUv2 driver to use the
mmu_notifier->release call-back instead of the task_exit
notifier
* Random other fixes and minor improvements to a number of other
IOMMU drivers
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Merge tag 'iommu-updates-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu into next
Pull IOMMU updates from Joerg Roedel:
"The changes include:
- a new IOMMU driver for ARM Renesas SOCs
- updates and fixes for the ARM Exynos driver to bring it closer to a
usable state again
- convert the AMD IOMMUv2 driver to use the mmu_notifier->release
call-back instead of the task_exit notifier
- random other fixes and minor improvements to a number of other
IOMMU drivers"
* tag 'iommu-updates-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (54 commits)
iommu/msm: Use devm_ioremap_resource to simplify code
iommu/amd: Fix recently introduced compile warnings
arm/ipmmu-vmsa: Fix compile error
iommu/exynos: Fix checkpatch warning
iommu/exynos: Fix trivial typo
iommu/exynos: Remove invalid symbol dependency
iommu: fsl_pamu.c: Fix for possible null pointer dereference
iommu/amd: Remove duplicate checking code
iommu/amd: Handle parallel invalidate_range_start/end calls correctly
iommu/amd: Remove IOMMUv2 pasid_state_list
iommu/amd: Implement mmu_notifier_release call-back
iommu/amd: Convert IOMMUv2 state_table into state_list
iommu/amd: Don't access IOMMUv2 state_table directly
iommu/ipmmu-vmsa: Support clearing mappings
iommu/ipmmu-vmsa: Remove stage 2 PTE bits definitions
iommu/ipmmu-vmsa: Support 2MB mappings
iommu/ipmmu-vmsa: Rewrite page table management
iommu/ipmmu-vmsa: PMD is never folded, PUD always is
iommu/ipmmu-vmsa: Set the PTE contiguous hint bit when possible
iommu/ipmmu-vmsa: Define driver-specific page directory sizes
...
Strings library contributed to glibc but re-licensed under GPLv2)
- Optimised crypto algorithms making use of the ARMv8 crypto extensions
(together with kernel API for using FPSIMD instructions in interrupt
context)
- Ftrace support
- CPU topology parsing from DT
- ESR_EL1 (Exception Syndrome Register) exposed to user space signal
handlers for SIGSEGV/SIGBUS (useful to emulation tools like Qemu)
- 1GB section linear mapping if applicable
- Barriers usage clean-up
- Default pgprot clean-up
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into next
Pull arm64 updates from Catalin Marinas:
- Optimised assembly string/memory routines (based on the AArch64
Cortex Strings library contributed to glibc but re-licensed under
GPLv2)
- Optimised crypto algorithms making use of the ARMv8 crypto extensions
(together with kernel API for using FPSIMD instructions in interrupt
context)
- Ftrace support
- CPU topology parsing from DT
- ESR_EL1 (Exception Syndrome Register) exposed to user space signal
handlers for SIGSEGV/SIGBUS (useful to emulation tools like Qemu)
- 1GB section linear mapping if applicable
- Barriers usage clean-up
- Default pgprot clean-up
Conflicts as per Catalin.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (57 commits)
arm64: kernel: initialize broadcast hrtimer based clock event device
arm64: ftrace: Add system call tracepoint
arm64: ftrace: Add CALLER_ADDRx macros
arm64: ftrace: Add dynamic ftrace support
arm64: Add ftrace support
ftrace: Add arm64 support to recordmcount
arm64: Add 'notrace' attribute to unwind_frame() for ftrace
arm64: add __ASSEMBLY__ in asm/insn.h
arm64: Fix linker script entry point
arm64: lib: Implement optimized string length routines
arm64: lib: Implement optimized string compare routines
arm64: lib: Implement optimized memcmp routine
arm64: lib: Implement optimized memset routine
arm64: lib: Implement optimized memmove routine
arm64: lib: Implement optimized memcpy routine
arm64: defconfig: enable a few more common/useful options in defconfig
ftrace: Make CALLER_ADDRx macros more generic
arm64: Fix deadlock scenario with smp_send_stop()
arm64: Fix machine_shutdown() definition
arm64: Support arch_irq_work_raise() via self IPIs
...
Pull ARM updates from Russell King:
- Major clean-up of the L2 cache support code. The existing mess was
becoming rather unmaintainable through all the additions that others
have done over time. This turns it into a much nicer structure, and
implements a few performance improvements as well.
- Clean up some of the CP15 control register tweaks for alignment
support, moving some code and data into alignment.c
- DMA properties for ARM, from Santosh and reviewed by DT people. This
adds DT properties to specify bus translations we can't discover
automatically, and to indicate whether devices are coherent.
- Hibernation support for ARM
- Make ftrace work with read-only text in modules
- add suspend support for PJ4B CPUs
- rework interrupt masking for undefined instruction handling, which
allows us to enable interrupts earlier in the handling of these
exceptions.
- support for big endian page tables
- fix stacktrace support to exclude stacktrace functions from the
trace, and add save_stack_trace_regs() implementation so that kprobes
can record stack traces.
- Add support for the Cortex-A17 CPU.
- Remove last vestiges of ARM710 support.
- Removal of ARM "meminfo" structure, finally converting us solely to
memblock to handle the early memory initialisation.
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits)
ARM: ensure C page table setup code follows assembly code (part II)
ARM: ensure C page table setup code follows assembly code
ARM: consolidate last remaining open-coded alignment trap enable
ARM: remove global cr_no_alignment
ARM: remove CPU_CP15 conditional from alignment.c
ARM: remove unused adjust_cr() function
ARM: move "noalign" command line option to alignment.c
ARM: provide common method to clear bits in CPU control register
ARM: 8025/1: Get rid of meminfo
ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type
ARM: 8066/1: correction for ARM patch 8031/2
ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
ARM: 8065/1: remove last use of CONFIG_CPU_ARM710
ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction
ARM: 8047/1: rwsem: use asm-generic rwsem implementation
ARM: l2c: trial at enabling some Cortex-A9 optimisations
ARM: l2c: add warnings for stuff modifying aux_ctrl register values
ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
ARM: l2c: remove old .set_debug method
ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this
...
Pull ARM64 EFI update from Peter Anvin:
"By agreement with the ARM64 EFI maintainers, we have agreed to make
-tip the upstream for all EFI patches. That is why this patchset
comes from me :)
This patchset enables EFI stub support for ARM64, like we already have
on x86"
* 'arm64-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
arm64: efi: only attempt efi map setup if booting via EFI
efi/arm64: ignore dtb= when UEFI SecureBoot is enabled
doc: arm64: add description of EFI stub support
arm64: efi: add EFI stub
doc: arm: add UEFI support documentation
arm64: add EFI runtime services
efi: Add shared FDT related functions for ARM/ARM64
arm64: Add function to create identity mappings
efi: add helper function to get UEFI params from FDT
doc: efi-stub.txt updates for ARM
lib: add fdt_empty_tree.c
Pull x86 EFI updates from Peter Anvin:
"A collection of EFI changes. The perhaps most important one is to
fully save and restore the FPU state around each invocation of EFI
runtime, and to not choke on non-ASCII characters in the boot stub"
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efivars: Add compatibility code for compat tasks
efivars: Refactor sanity checking code into separate function
efivars: Stop passing a struct argument to efivar_validate()
efivars: Check size of user object
efivars: Use local variables instead of a pointer dereference
x86/efi: Save and restore FPU context around efi_calls (i386)
x86/efi: Save and restore FPU context around efi_calls (x86_64)
x86/efi: Implement a __efi_call_virt macro
x86, fpu: Extend the use of static_cpu_has_safe
x86/efi: Delete most of the efi_call* macros
efi: x86: Handle arbitrary Unicode characters
efi: Add get_dram_base() helper function
efi: Add shared printk wrapper for consistent prefixing
efi: create memory map iteration helper
efi: efi-stub-helper cleanup
Pull x86 cdso updates from Peter Anvin:
"Vdso cleanups and improvements largely from Andy Lutomirski. This
makes the vdso a lot less ''special''"
* 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vdso, build: Make LE access macros clearer, host-safe
x86/vdso, build: Fix cross-compilation from big-endian architectures
x86/vdso, build: When vdso2c fails, unlink the output
x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET
x86, mm: Replace arch_vma_name with vm_ops->name for vsyscalls
x86, mm: Improve _install_special_mapping and fix x86 vdso naming
mm, fs: Add vm_ops->name as an alternative to arch_vma_name
x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET
x86, vdso: Remove vestiges of VDSO_PRELINK and some outdated comments
x86, vdso: Move the vvar and hpet mappings next to the 64-bit vDSO
x86, vdso: Move the 32-bit vdso special pages after the text
x86, vdso: Reimplement vdso.so preparation in build-time C
x86, vdso: Move syscall and sysenter setup into kernel/cpu/common.c
x86, vdso: Clean up 32-bit vs 64-bit vdso params
x86, mm: Ensure correct alignment of the fixmap
Merge misc updates from Andrew Morton:
- a few fixes for 3.16. Cc'ed to stable so they'll get there somehow.
- various misc fixes and cleanups
- most of the ocfs2 queue. Review is slow...
- most of MM. The MM queue is pretty huge this time, but not much in
the way of feature work.
- some tweaks under kernel/
- printk maintenance work
- updates to lib/
- checkpatch updates
- tweaks to init/
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (276 commits)
fs/autofs4/dev-ioctl.c: add __init to autofs_dev_ioctl_init
fs/ncpfs/getopt.c: replace simple_strtoul by kstrtoul
init/main.c: remove an ifdef
kthreads: kill CLONE_KERNEL, change kernel_thread(kernel_init) to avoid CLONE_SIGHAND
init/main.c: add initcall_blacklist kernel parameter
init/main.c: don't use pr_debug()
fs/binfmt_flat.c: make old_reloc() static
fs/binfmt_elf.c: fix bool assignements
fs/efs: convert printk(KERN_DEBUG to pr_debug
fs/efs: add pr_fmt / use __func__
fs/efs: convert printk to pr_foo()
scripts/checkpatch.pl: device_initcall is not the only __initcall substitute
checkpatch: check stable email address
checkpatch: warn on unnecessary void function return statements
checkpatch: prefer kstrto<foo> to sscanf(buf, "%<lhuidx>", &bar);
checkpatch: add warning for kmalloc/kzalloc with multiply
checkpatch: warn on #defines ending in semicolon
checkpatch: make --strict a default for files in drivers/net and net/
checkpatch: always warn on missing blank line after variable declaration block
checkpatch: fix wildcard DT compatible string checking
...
1. Remove CLONE_KERNEL, it has no users and it is dangerous.
The (old) comment says "List of flags we want to share for kernel
threads" but this is not true, we do not want to share ->sighand by
default. This flag can only be used if the caller is sure that both
parent/child will never play with signals (say, allow_signal/etc).
2. Change rest_init() to clone kernel_init() without CLONE_SIGHAND.
In this case CLONE_SIGHAND does not really hurt, and it looks like
optimization because copy_sighand() can avoid kmem_cache_alloc().
But in fact this only adds the minor pessimization. kernel_init()
is going to exec the init process, and de_thread() will need to
unshare ->sighand and do kmem_cache_alloc(sighand_cachep) anyway,
but it needs to do more work and take tasklist_lock and siglock.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
... instead of naked numbers.
Stuff in sysrq.c used to set it to 8 which is supposed to mean above
default level so set it to DEBUG instead as we're terminating/killing all
tasks and we want to be verbose there.
Also, correct the check in x86_64_start_kernel which should be >= as
we're clearly issuing the string there for all debug levels, not only
the magical 10.
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Joe Perches <joe@perches.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The pr_debug() and related debug print macros all differ from the normal
pr_XXX() macros, in that the normal ones print unconditionally, while
the debug macros are compiled out unless DEBUG is defined or
CONFIG_DYNAMIC_DEBUG is set. This isn't obvious, and the only way to
find this out is either to review the actual printk.h code or to read
CodingStyle, and the message there doesn't highlight the fact.
Change Documentation/CodingStyle to clearly indicate that pr_debug() and
related debug printing macros behave differently than all other pr_XXX()
macros, and attempt to clarify when and where the different debug
printing methods might be used.
Add short comment to printk.h above the pr_XXX() macros indicating that
while these macros print unconditionally, pr_debug() does not.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Cc: Joe Perches <joe@perches.com>
Cc: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
