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Chao Yu a33c150237 f2fs: fix avoid race between truncate and background GC 
Thread A				Background GC
- f2fs_setattr isize to 0
 - truncate_setsize
					- gc_data_segment
					 - f2fs_get_read_data_page page #0
					  - set_page_dirty
					  - set_cold_data
 - f2fs_truncate

- f2fs_setattr isize to 4k
- read 4k <--- hit data in cached page #0

Above race condition can cause read out invalid data in a truncated
page, fix it by i_gc_rwsem[WRITE] lock.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-08-13 10:48:17 -07:00
arch
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2018-07-06 09:14:34 -07:00
block
Merge tag 'for-linus-20180629' of git://git.kernel.dk/linux-block
2018-06-30 10:47:46 -07:00
certs
certs/blacklist: fix const confusion
2018-06-26 09:43:03 -07:00
crypto
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
Documentation
Merge tag 'usb-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2018-07-01 11:50:16 -07:00
drivers
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2018-07-06 09:14:34 -07:00
firmware
kbuild: remove all dummy assignments to obj-
2017-11-18 11:46:06 +09:00
fs
f2fs: fix avoid race between truncate and background GC
2018-08-13 10:48:17 -07:00
include
f2fs: Allocate and stat mem used by free nid bitmap more accurately
2018-07-28 18:23:26 -07:00
init
Merge tag 'kbuild-fixes-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-06-30 13:05:30 -07:00
ipc
ipc: use new return type vm_fault_t
2018-06-15 07:55:25 +09:00
kernel
Merge tag 'trace-v4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2018-07-05 19:29:07 -07:00
lib
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-07-02 11:18:28 -07:00
LICENSES
LICENSES: Add Linux-OpenIB license text
2018-04-27 16:41:53 -06:00
mm
mm: teach dump_page() to correctly output poisoned struct pages
2018-07-03 17:32:19 -07:00
net
net/smc: fix up merge error with poll changes
2018-07-03 09:53:43 -07:00
samples
bpf: Change bpf_fib_lookup to return lookup status
2018-06-29 00:02:02 +02:00
scripts
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-07-02 11:18:28 -07:00
security
Merge tag 'selinux-pr-20180629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
2018-06-30 11:15:12 -07:00
sound
ALSA: seq: Fix UBSAN warning at SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT ioctl
2018-06-25 11:18:04 +02:00
tools
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-07-02 11:18:28 -07:00
usr
kbuild: rename built-in.o to built-in.a
2018-03-26 02:01:19 +09:00
virt
KVM: arm64: Prevent KVM_COMPAT from being selected
2018-06-21 17:17:50 +01:00
.clang-format
clang-format: add configuration file
2018-04-11 10:28:35 -07:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
…
.gitattributes
.gitattributes: set git diff driver for C source code files
2016-10-07 18:46:30 -07:00
.gitignore
Merge tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-04-15 17:21:30 -07:00
.mailmap
Merge branch 'asoc-4.17' into asoc-4.18 for compress dependencies
2018-04-26 12:24:28 +01:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
MAINTAINERS/CREDITS: Drop METAG ARCHITECTURE
2018-03-05 16:34:24 +00:00
Kbuild
Merge tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2017-11-17 17:45:29 -08:00
Kconfig
kconfig: add basic helper macros to scripts/Kconfig.include
2018-05-29 03:31:19 +09:00
MAINTAINERS
proc: add Alexey to MAINTAINERS
2018-06-28 11:16:44 -07:00
Makefile
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-07-02 11:18:28 -07:00
README
Docs: Added a pointer to the formatted docs to README
2018-03-21 09:02:53 -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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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