fscrypt only uses SHA-256 for AES-128-CBC-ESSIV, which isn't the default
and is only recommended on platforms that have hardware accelerated
AES-CBC but not AES-XTS. There's no link-time dependency, since SHA-256
is requested via the crypto API on first use.
To reduce bloat, we should limit FS_ENCRYPTION to selecting the default
algorithms only. SHA-256 by itself isn't that much bloat, but it's
being discussed to move ESSIV into a crypto API template, which would
incidentally bring in other things like "authenc" support, which would
all end up being built-in since FS_ENCRYPTION is now a bool.
For Adiantum encryption we already just document that users who want to
use it have to enable CONFIG_CRYPTO_ADIANTUM themselves. So, let's do
the same for AES-128-CBC-ESSIV and CONFIG_CRYPTO_SHA256.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Clearify d_make_root() usage, error handling and cleanup
requirements.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
There's no need to use a .rst on Sphinx toc tables. As most of
the Documentation don't use, remove the remaing occurrences.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Convert the cgroup-v1 files to ReST format, in order to
allow a later addition to the admin-guide.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
The conversion is actually:
- add blank lines and indentation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge tag 'v5.2-rc4' into mauro
We need to pick up post-rc1 changes to various document files so they don't
get lost in Mauro's massive RST conversion push.
A recent documentation conversion renamed this file but forgot
to update the links.
Fixes: af96c1e304f7 ("docs: filesystems: vfs: Convert vfs.txt to RST")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In "Y+P" of this line, there are two non-ASCII characters(0xd9 0x8d)
following behind the 'Y'. Shown as a small '=' under the '+' in VIM
and a '賺' in webpage[1].
I think it's a mistake and remove these strange characters.
[1]: https://www.kernel.org/doc/Documentation/filesystems/xfs-delayed-logging-design.txt
Signed-off-by: Shiyang Ruan <ruansy.fnst@cn.fujitsu.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently vfs.rst does not render well into HTML the method descriptions
for VFS data structures. We can improve the HTML output by putting the
description string on a new line following the method name.
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This extends the checkpoint option to allow checkpoint=disable:%u[%]
This allows you to specify what how much of the disk you are willing
to lose access to while mounting with checkpoint=disable. If the amount
lost would be higher, the mount will return -EAGAIN. This can be given
as a percent of total space, or in blocks.
Currently, we need to run garbage collection until the amount of holes
is smaller than the OVP space. With the new option, f2fs can mark
space as unusable up front instead of requiring garbage collection until
the number of holes is small enough.
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
The single user of debugfs_create_u32_array() does not care about the
return value of it, so make it return void as there is no need to do
anything with the return value.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch cleans up documentation to cover missing sysfs entries.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
vfs.txt is currently stale. If we convert it to RST this is a good
first step in the process of getting the VFS documentation up to date.
This patch does the following (all as a single patch so as not to
introduce any new SPHINX build warnings)
- Use '.. code-block:: c' for C code blocks and indent the code blocks.
- Use double backticks for struct member descriptions.
- Fix a couple of build warnings by guarding pointers (*) with double
backticks .e.g ``*ptr``.
- Add vfs to Documentation/filesystems/index.rst
The member descriptions paragraph indentation was not touched. It is
not pretty but these do not cause build warnings. These descriptions
all need updating anyways so leave it as it is for now.
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There are bunch of places with 8 spaces, in preparation for correctly
indenting all code snippets (during conversion to RST) change these to
use tabspaces.
This patch is whitespace only.
Convert instances of 8 consecutive spaces to a single tabspace.
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently file pre-amble contains custom indentation. RST is not going
to like this, lets left-align the text. Put the copyright notices in a
list in preparation for converting document to RST.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently the licence is indicated via a custom string. We have SPDX
license identifiers now for this task.
Use SPDX license identifier matching current license string.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Kernel RST has a preferred heading adornment scheme. Currently all the
heading adornments follow this scheme except the document heading.
Use correct heading adornment for initial heading.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently spacing before and after headings is non-uniform. Use two
blank lines before a heading and one after the heading.
Use uniform spacing around headings.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In preparation for conversion to RST format use the kernels favoured
documentation column width. If we are going to do this we might as well
do it thoroughly. Just do the paragraphs (not the indented stuff), the
rest will be done during indentation fix up patch.
This patch is whitespace only, no textual changes.
Use 72 character column width for all paragraph sections.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently sometimes document has a single space after a period and
sometimes it has double. Whichever we use it should be uniform.
Use double space after period, be uniform.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently the file has a bunch of spaces before tabspaces. This is a
nuisance when patching the file because they show up whenever we touch
these lines. Let's just fix them all now in preparation for doing the
RST conversion.
Remove spaces before tabspaces.
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
ext2 support user/group disk quota by specifying
usrquota/grpquota option on mount, so fix the
description in the doc properly.
Signed-off-by: Chengguang Xu <cgxu519@zoho.com.cn>
Signed-off-by: Jan Kara <jack@suse.cz>
Add a description of the "ignore" pseudo mount option that can be used
to provide a generic indicator to applications that the mount entry
should be ignored when displaying mount information.
Link: http://lkml.kernel.org/r/155287084617.12593.812733161112154904.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Describe AUTOFS_EXP_FORCED in addition to AUTOFS_EXP_IMMEDIATE in the
description of the AUTOFS_DEV_IOCTL_EXPIRE_CMD ioctl.
Link: http://lkml.kernel.org/r/155287084078.12593.15000931045413195778.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the description of AUTOFS_EXP_LEAVES to cover its possible future
use with amd format mount maps.
Link: http://lkml.kernel.org/r/155287083538.12593.18163159677020718048.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A "strictexpire" mount option has been added to the autofs file system.
It is meant to be used in cases where a GUI continually accesses or an
application frquently scans an automount directory tree causing an
accumulation of otherwise unused mounts.
Link: http://lkml.kernel.org/r/155287083000.12593.2722713092537666885.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alter a few word usages in Documentation/filesystems/autofs.txt and
correct some spelling mistakes.
Link: http://lkml.kernel.org/r/155287082394.12593.6506084453911662450.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull misc vfs updates from Al Viro:
"Assorted stuff, with no common topic whatsoever..."
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
libfs: document simple_get_link()
Documentation/filesystems/Locking: fix ->get_link() prototype
Documentation/filesystems/vfs.txt: document how ->i_link works
Documentation/filesystems/vfs.txt: remove bogus "Last updated" date
fs: use timespec64 in relatime_need_update
fs/block_dev.c: remove unused include
Pull misc dcache updates from Al Viro:
"Most of this pile is putting name length into struct name_snapshot and
making use of it.
The beginning of this series ("ovl_lookup_real_one(): don't bother
with strlen()") ought to have been split in two (separate switch of
name_snapshot to struct qstr from overlayfs reaping the trivial
benefits of that), but I wanted to avoid a rebase - by the time I'd
spotted that it was (a) in -next and (b) close to 5.1-final ;-/"
* 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
audit_compare_dname_path(): switch to const struct qstr *
audit_update_watch(): switch to const struct qstr *
inotify_handle_event(): don't bother with strlen()
fsnotify: switch send_to_group() and ->handle_event to const struct qstr *
fsnotify(): switch to passing const struct qstr * for file_name
switch fsnotify_move() to passing const struct qstr * for old_name
ovl_lookup_real_one(): don't bother with strlen()
sysv: bury the broken "quietly truncate the long filenames" logics
nsfs: unobfuscate
unexport d_alloc_pseudo()
Here is the "big" set of driver core patches for 5.2-rc1
There are a number of ACPI patches in here as well, as Rafael said they
should go through this tree due to the driver core changes they
required. They have all been acked by the ACPI developers.
There are also a number of small subsystem-specific changes in here, due
to some changes to the kobject core code. Those too have all been acked
by the various subsystem maintainers.
As for content, it's pretty boring outside of the ACPI changes:
- spdx cleanups
- kobject documentation updates
- default attribute groups for kobjects
- other minor kobject/driver core fixes
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core/kobject updates from Greg KH:
"Here is the "big" set of driver core patches for 5.2-rc1
There are a number of ACPI patches in here as well, as Rafael said
they should go through this tree due to the driver core changes they
required. They have all been acked by the ACPI developers.
There are also a number of small subsystem-specific changes in here,
due to some changes to the kobject core code. Those too have all been
acked by the various subsystem maintainers.
As for content, it's pretty boring outside of the ACPI changes:
- spdx cleanups
- kobject documentation updates
- default attribute groups for kobjects
- other minor kobject/driver core fixes
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (47 commits)
kobject: clean up the kobject add documentation a bit more
kobject: Fix kernel-doc comment first line
kobject: Remove docstring reference to kset
firmware_loader: Fix a typo ("syfs" -> "sysfs")
kobject: fix dereference before null check on kobj
Revert "driver core: platform: Fix the usage of platform device name(pdev->name)"
init/config: Do not select BUILD_BIN2C for IKCONFIG
Provide in-kernel headers to make extending kernel easier
kobject: Improve doc clarity kobject_init_and_add()
kobject: Improve docs for kobject_add/del
driver core: platform: Fix the usage of platform device name(pdev->name)
livepatch: Replace klp_ktype_patch's default_attrs with groups
cpufreq: schedutil: Replace default_attrs field with groups
padata: Replace padata_attr_type default_attrs field with groups
irqdesc: Replace irq_kobj_type's default_attrs field with groups
net-sysfs: Replace ktype default_attrs field with groups
block: Replace all ktype default_attrs with groups
samples/kobject: Replace foo_ktype's default_attrs field with groups
kobject: Add support for default attribute groups to kobj_type
driver core: Postpone DMA tear-down until after devres release for probe failure
...
Pull vfs stable fodder fixes from Al Viro:
- acct_on() fix for deadlock caught by overlayfs folks
- autofs RCU use-after-free SNAFU (->d_manage() can be called
locklessly, so we need to RCU-delay freeing the objects it looks at)
- (hopefully) the end of "do we need freeing this dentry RCU-delayed"
whack-a-mole.
* 'stable-fodder' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
autofs: fix use-after-free in lockless ->d_manage()
dcache: sort the freeing-without-RCU-delay mess for good.
acct_on(): don't mess with freeze protection
A lot of ->destroy_inode() instances end with call_rcu() of a callback
that does RCU-delayed part of freeing. Introduce a new method for
doing just that, with saner signature.
Rules:
->destroy_inode ->free_inode
f g immediate call of f(),
RCU-delayed call of g()
f NULL immediate call of f(),
no RCU-delayed calls
NULL g RCU-delayed call of g()
NULL NULL RCU-delayed default freeing
IOW, NULL ->free_inode gives the same behaviour as now.
Note that NULL, NULL is equivalent to NULL, free_inode_nonrcu; we could
mandate the latter form, but that would have very little benefit beyond
making rules a bit more symmetric. It would break backwards compatibility,
require extra boilerplate and expected semantics for (NULL, NULL) pair
would have no use whatsoever...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This file has actually been updated over 100 times since the claimed
"Last updated" date.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Since commit ff9fb72bc077 ("debugfs: return error values, not NULL")
these helper functions do not return NULL anymore (with the exception
of debugfs_create_u32_array()).
Fixes: ff9fb72bc077 ("debugfs: return error values, not NULL")
Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
No modular uses since introducion of alloc_file_pseudo(),
and the only non-modular user not in alloc_file_pseudo()
had actually been wrong - should've been d_alloc_anon().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
For lockless accesses to dentries we don't have pinned we rely
(among other things) upon having an RCU delay between dropping
the last reference and actually freeing the memory.
On the other hand, for things like pipes and sockets we neither
do that kind of lockless access, nor want to deal with the
overhead of an RCU delay every time a socket gets closed.
So delay was made optional - setting DCACHE_RCUACCESS in ->d_flags
made sure it would happen. We tried to avoid setting it unless
we knew we need it. Unfortunately, that had led to recurring
class of bugs, in which we missed the need to set it.
We only really need it for dentries that are created by
d_alloc_pseudo(), so let's not bother with trying to be smart -
just make having an RCU delay the default. The ones that do
*not* get it set the replacement flag (DCACHE_NORCU) and we'd
better use that sparingly. d_alloc_pseudo() is the only
such user right now.
FWIW, the race that finally prompted that switch had been
between __lock_parent() of immediate subdirectory of what's
currently the root of a disconnected tree (e.g. from
open-by-handle in progress) racing with d_splice_alias()
elsewhere picking another alias for the same inode, either
on outright corrupted fs image, or (in case of open-by-handle
on NFS) that subdirectory having been just moved on server.
It's not easy to hit, so the sky is not falling, but that's
not the first race on similar missed cases and the logics
for settinf DCACHE_RCUACCESS has gotten ridiculously
convoluted.
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Update the mount API docs to reflect recent changes to the code.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag '5.1-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb3 updates from Steve French:
"Various tracing and debugging improvements, crediting fixes, some
cleanup, and important fallocate fix (fixes three xfstests) and lock
fix.
Summary:
- Various additional dynamic tracing tracepoints
- Debugging improvements (including ability to query the server via
SMB3 fsctl from userspace tools which can help with stats and
debugging)
- One minor performance improvement (root directory inode caching)
- Crediting (SMB3 flow control) fixes
- Some cleanup (docs and to mknod)
- Important fixes: one to smb3 implementation of fallocate zero range
(which fixes three xfstests) and a POSIX lock fix"
* tag '5.1-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6: (22 commits)
CIFS: fix POSIX lock leak and invalid ptr deref
SMB3: Allow SMB3 FSCTL queries to be sent to server from tools
cifs: fix incorrect handling of smb2_set_sparse() return in smb3_simple_falloc
smb2: fix typo in definition of a few error flags
CIFS: make mknod() an smb_version_op
cifs: minor documentation updates
cifs: remove unused value pointed out by Coverity
SMB3: passthru query info doesn't check for SMB3 FSCTL passthru
smb3: add dynamic tracepoints for simple fallocate and zero range
cifs: fix smb3_zero_range so it can expand the file-size when required
cifs: add SMB2_ioctl_init/free helpers to be used with compounding
smb3: Add dynamic trace points for various compounded smb3 ops
cifs: cache FILE_ALL_INFO for the shared root handle
smb3: display volume serial number for shares in /proc/fs/cifs/DebugData
cifs: simplify how we handle credits in compound_send_recv()
smb3: add dynamic tracepoint for timeout waiting for credits
smb3: display security information in /proc/fs/cifs/DebugData more accurately
cifs: add a timeout argument to wait_for_free_credits
cifs: prevent starvation in wait_for_free_credits for multi-credit requests
cifs: wait_for_free_credits() make it possible to wait for >=1 credits
...
We've continued mainly to fix bugs in this round, as f2fs has been shipped
in more devices. Especially, we've focused on stabilizing checkpoint=disable
feature, and provided some interfaces for QA.
Enhancement:
- expose FS_NOCOW_FL for pin_file
- run discard jobs at unmount time with timeout
- tune discarding thread to avoid idling which consumes power
- some checking codes to address vulnerabilities
- give random value to i_generation
- shutdown with more flags for QA
Bug fix:
- clean up stale objects when mount is failed along with checkpoint=disable
- fix system being stuck due to wrong count by atomic writes
- handle some corrupted disk cases
- fix a deadlock in f2fs_read_inline_dir
We've also added some minor build errors and clean-up patches.
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Merge tag 'f2fs-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"We've continued mainly to fix bugs in this round, as f2fs has been
shipped in more devices. Especially, we've focused on stabilizing
checkpoint=disable feature, and provided some interfaces for QA.
Enhancements:
- expose FS_NOCOW_FL for pin_file
- run discard jobs at unmount time with timeout
- tune discarding thread to avoid idling which consumes power
- some checking codes to address vulnerabilities
- give random value to i_generation
- shutdown with more flags for QA
Bug fixes:
- clean up stale objects when mount is failed along with
checkpoint=disable
- fix system being stuck due to wrong count by atomic writes
- handle some corrupted disk cases
- fix a deadlock in f2fs_read_inline_dir
We've also added some minor build error fixes and clean-up patches"
* tag 'f2fs-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (53 commits)
f2fs: set pin_file under CAP_SYS_ADMIN
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
f2fs: fix to do sanity check with inode.i_inline_xattr_size
f2fs: give some messages for inline_xattr_size
f2fs: don't trigger read IO for beyond EOF page
f2fs: fix to add refcount once page is tagged PG_private
f2fs: remove wrong comment in f2fs_invalidate_page()
f2fs: fix to use kvfree instead of kzfree
f2fs: print more parameters in trace_f2fs_map_blocks
f2fs: trace f2fs_ioc_shutdown
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to dirty inode for i_mode recovery
f2fs: give random value to i_generation
f2fs: no need to take page lock in readdir
f2fs: fix to update iostat correctly in IPU path
f2fs: fix encrypted page memory leak
f2fs: make fault injection covering __submit_flush_wait()
f2fs: fix to retry fill_super only if recovery failed
f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
...
- rbd will now ignore discards that aren't aligned and big enough to
actually free up some space (myself). This is controlled by the new
alloc_size map option and can be disabled if needed.
- support for rbd deep-flatten feature (myself). Deep-flatten allows
"rbd flatten" to fully disconnect the clone image and its snapshots
from the parent and make the parent snapshot removable.
- a new round of cap handling improvements (Zheng Yan). The kernel
client should now be much more prompt about releasing its caps and
it is possible to put a limit on the number of caps held.
- support for getting ceph.dir.pin extended attribute (Zheng Yan)
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Merge tag 'ceph-for-5.1-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"The highlights are:
- rbd will now ignore discards that aren't aligned and big enough to
actually free up some space (myself). This is controlled by the new
alloc_size map option and can be disabled if needed.
- support for rbd deep-flatten feature (myself). Deep-flatten allows
"rbd flatten" to fully disconnect the clone image and its snapshots
from the parent and make the parent snapshot removable.
- a new round of cap handling improvements (Zheng Yan). The kernel
client should now be much more prompt about releasing its caps and
it is possible to put a limit on the number of caps held.
- support for getting ceph.dir.pin extended attribute (Zheng Yan)"
* tag 'ceph-for-5.1-rc1' of git://github.com/ceph/ceph-client: (26 commits)
Documentation: modern versions of ceph are not backed by btrfs
rbd: advertise support for RBD_FEATURE_DEEP_FLATTEN
rbd: whole-object write and zeroout should copyup when snapshots exist
rbd: copyup with an empty snapshot context (aka deep-copyup)
rbd: introduce rbd_obj_issue_copyup_ops()
rbd: stop copying num_osd_ops in rbd_obj_issue_copyup()
rbd: factor out __rbd_osd_req_create()
rbd: clear ->xferred on error from rbd_obj_issue_copyup()
rbd: remove experimental designation from kernel layering
ceph: add mount option to limit caps count
ceph: periodically trim stale dentries
ceph: delete stale dentry when last reference is dropped
ceph: remove dentry_lru file from debugfs
ceph: touch existing cap when handling reply
ceph: pass inclusive lend parameter to filemap_write_and_wait_range()
rbd: round off and ignore discards that are too small
rbd: handle DISCARD and WRITE_ZEROES separately
rbd: get rid of obj_req->obj_request_count
libceph: use struct_size() for kmalloc() in crush_decode()
ceph: send cap releases more aggressively
...
Pull vfs mount infrastructure updates from Al Viro:
"The rest of core infrastructure; no new syscalls in that pile, but the
old parts are switched to new infrastructure. At that point
conversions of individual filesystems can happen independently; some
are done here (afs, cgroup, procfs, etc.), there's also a large series
outside of that pile dealing with NFS (quite a bit of option-parsing
stuff is getting used there - it's one of the most convoluted
filesystems in terms of mount-related logics), but NFS bits are the
next cycle fodder.
It got seriously simplified since the last cycle; documentation is
probably the weakest bit at the moment - I considered dropping the
commit introducing Documentation/filesystems/mount_api.txt (cutting
the size increase by quarter ;-), but decided that it would be better
to fix it up after -rc1 instead.
That pile allows to do followup work in independent branches, which
should make life much easier for the next cycle. fs/super.c size
increase is unpleasant; there's a followup series that allows to
shrink it considerably, but I decided to leave that until the next
cycle"
* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits)
afs: Use fs_context to pass parameters over automount
afs: Add fs_context support
vfs: Add some logging to the core users of the fs_context log
vfs: Implement logging through fs_context
vfs: Provide documentation for new mount API
vfs: Remove kern_mount_data()
hugetlbfs: Convert to fs_context
cpuset: Use fs_context
kernfs, sysfs, cgroup, intel_rdt: Support fs_context
cgroup: store a reference to cgroup_ns into cgroup_fs_context
cgroup1_get_tree(): separate "get cgroup_root to use" into a separate helper
cgroup_do_mount(): massage calling conventions
cgroup: stash cgroup_root reference into cgroup_fs_context
cgroup2: switch to option-by-option parsing
cgroup1: switch to option-by-option parsing
cgroup: take options parsing into ->parse_monolithic()
cgroup: fold cgroup1_mount() into cgroup1_get_tree()
cgroup: start switching to fs_context
ipc: Convert mqueue fs to fs_context
proc: Add fs_context support to procfs
...
This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
hisi_sas, target/iscsi and target/core. Additionally Christoph
refactored gdth as part of the dma changes. The major mid-layer
change this time is the removal of bidi commands and with them the
whole of the osd/exofs driver and filesystem.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
hisi_sas, target/iscsi and target/core.
Additionally Christoph refactored gdth as part of the dma changes. The
major mid-layer change this time is the removal of bidi commands and
with them the whole of the osd/exofs driver and filesystem. This is a
major simplification for block and mq in particular"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits)
scsi: cxgb4i: validate tcp sequence number only if chip version <= T5
scsi: cxgb4i: get pf number from lldi->pf
scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
scsi: mpt3sas: Add missing breaks in switch statements
scsi: aacraid: Fix missing break in switch statement
scsi: kill command serial number
scsi: csiostor: drop serial_number usage
scsi: mvumi: use request tag instead of serial_number
scsi: dpt_i2o: remove serial number usage
scsi: st: osst: Remove negative constant left-shifts
scsi: ufs-bsg: Allow reading descriptors
scsi: ufs: Allow reading descriptor via raw upiu
scsi: ufs-bsg: Change the calling convention for write descriptor
scsi: ufs: Remove unused device quirks
Revert "scsi: ufs: disable vccq if it's not needed by UFS device"
scsi: megaraid_sas: Remove a bunch of set but not used variables
scsi: clean obsolete return values of eh_timed_out
scsi: sd: Optimal I/O size should be a multiple of physical block size
scsi: MAINTAINERS: SCSI initiator and target tweaks
scsi: fcoe: make use of fip_mode enum complete
...
First: Ted, Jaegeuk, and I have decided to add me as a co-maintainer for
fscrypt, and we're now using a shared git tree. So we've updated
MAINTAINERS accordingly, and I'm doing the pull request this time.
The actual changes for v5.1 are:
- Remove the fs-specific kconfig options like CONFIG_EXT4_ENCRYPTION and
make fscrypt support for all fscrypt-capable filesystems be controlled
by CONFIG_FS_ENCRYPTION, similar to how CONFIG_QUOTA works.
- Improve error code for rename() and link() into encrypted directories.
- Various cleanups.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
"First: Ted, Jaegeuk, and I have decided to add me as a co-maintainer
for fscrypt, and we're now using a shared git tree. So we've updated
MAINTAINERS accordingly, and I'm doing the pull request this time.
The actual changes for v5.1 are:
- Remove the fs-specific kconfig options like CONFIG_EXT4_ENCRYPTION
and make fscrypt support for all fscrypt-capable filesystems be
controlled by CONFIG_FS_ENCRYPTION, similar to how CONFIG_QUOTA
works.
- Improve error code for rename() and link() into encrypted
directories.
- Various cleanups"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
MAINTAINERS: add Eric Biggers as an fscrypt maintainer
fscrypt: return -EXDEV for incompatible rename or link into encrypted dir
fscrypt: remove filesystem specific build config option
f2fs: use IS_ENCRYPTED() to check encryption status
ext4: use IS_ENCRYPTED() to check encryption status
fscrypt: remove CRYPTO_CTR dependency
and more translations. There's also some LICENSES adjustments from
Thomas.
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Merge tag 'docs-5.1' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"A fairly routine cycle for docs - lots of typo fixes, some new
documents, and more translations. There's also some LICENSES
adjustments from Thomas"
* tag 'docs-5.1' of git://git.lwn.net/linux: (74 commits)
docs: Bring some order to filesystem documentation
Documentation/locking/lockdep: Drop last two chars of sample states
doc: rcu: Suspicious RCU usage is a warning
docs: driver-api: iio: fix errors in documentation
Documentation/process/howto: Update for 4.x -> 5.x versioning
docs: Explicitly state that the 'Fixes:' tag shouldn't split lines
doc: security: Add kern-doc for lsm_hooks.h
doc: sctp: Merge and clean up rst files
Docs: Correct /proc/stat path
scripts/spdxcheck.py: fix C++ comment style detection
doc: fix typos in license-rules.rst
Documentation: fix admin-guide/README.rst minimum gcc version requirement
doc: process: complete removal of info about -git patches
doc: translations: sync translations 'remove info about -git patches'
perf-security: wrap paragraphs on 72 columns
perf-security: elaborate on perf_events/Perf privileged users
perf-security: document collected perf_events/Perf data categories
perf-security: document perf_events/Perf resource control
sysfs.txt: add note on available attribute macros
docs: kernel-doc: typo "if ... if" -> "if ... is"
...
