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Nikolay Borisov 5f791ec31f btrfs: Return EAGAIN if we can't start no snpashot write in check_can_nocow 
The first thing code does in check_can_nocow is trying to block
concurrent snapshots. If this fails (due to snpashot already being in
progress) the function returns ENOSPC which makes no sense. Instead
return EAGAIN. Despite this return value not being propagated to callers
it's good practice to return the closest in terms of semantics error
code. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-07-01 13:34:59 +02:00
arch
Merge tag 'powerpc-5.2-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2019-06-30 11:20:52 +08:00
block
block, bfq: fix operator in BFQQ_TOTALLY_SEEKY
2019-06-25 11:38:08 -06:00
certs
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36
2019-05-24 17:27:11 +02:00
crypto
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Documentation
dt-bindings: riscv: resolve 'make dt_binding_check' warnings
2019-06-26 10:28:53 -07:00
drivers
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-06-29 19:36:53 +08:00
fs
btrfs: Return EAGAIN if we can't start no snpashot write in check_can_nocow
2019-07-01 13:34:59 +02:00
include
btrfs: extent-tree: Add trace events for space info numbers update
2019-07-01 13:34:58 +02:00
init
initramfs: fix populate_initrd_image() section mismatch
2019-06-29 16:43:45 +08:00
ipc
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
kernel
Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-06-30 11:19:17 +08:00
lib
Merge tag 'xarray-5.2-rc6' of git://git.infradead.org/users/willy/linux-dax
2019-06-29 17:14:57 +08:00
LICENSES
LICENSES: Rename other to deprecated
2019-05-03 06:34:32 -06:00
mm
mm, swap: fix THP swap out
2019-06-29 16:43:45 +08:00
net
Merge tag 'nfs-for-5.2-4' of git://git.linux-nfs.org/projects/anna/linux-nfs
2019-06-29 17:02:22 +08:00
samples
samples: make pidfd-metadata fail gracefully on older kernels
2019-06-24 15:55:50 +02:00
scripts
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
security
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
sound
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tools
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-06-29 19:39:17 +08:00
usr
user/Makefile: Fix typo and capitalization in comment section
2018-12-11 00:18:03 +09:00
virt
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
.clang-format
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-17 11:26:25 -07:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: set git diff driver for C source code files
2016-10-07 18:46:30 -07:00
.gitignore
.gitignore: exclude .get_maintainer.ignore and .gitattributes
2019-05-18 11:49:54 +09:00
.mailmap
MAINTAINERS: Update my email address
2019-06-18 14:37:27 +01:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
MAINTAINERS: Farewell Martin Schwidefsky
2019-05-31 10:14:11 +02:00
Kbuild
Merge tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2019-03-10 17:48:21 -07:00
Kconfig
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
MAINTAINERS
MAINTAINERS: add CLANG/LLVM BUILD SUPPORT info
2019-06-29 16:43:45 +08:00
Makefile
Linux 5.2-rc7
2019-06-30 11:25:36 +08:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
Description
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