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| author |   Andrew Ruder <andrew.ruder@elecsyscorp.com> | 2014-01-30 09:26:54 -0600 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2014-01-31 14:29:36 -0500 |
| commit | 807612db2f9940b9fa6deaef054eb16d51bd3e00 (patch) | |
| tree | f22bc5b0debad1f1833c8d349e0dbd1b3fecd607 /include/linux/compat.h | |
| parent | vfs: unexport the getname() symbol (diff) | |
| download | linux-dev-807612db2f9940b9fa6deaef054eb16d51bd3e00.tar.xz linux-dev-807612db2f9940b9fa6deaef054eb16d51bd3e00.zip | |
fs/super.c: sync ro remount after blocking writers
Move sync_filesystem() after sb_prepare_remount_readonly(). If writers
sneak in anywhere from sync_filesystem() to sb_prepare_remount_readonly()
it can cause inodes to be dirtied and writeback to occur well after
sys_mount() has completely successfully.
This was spotted by corrupted ubifs filesystems on reboot, but appears
that it can cause issues with any filesystem using writeback.
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
CC: Richard Weinberger <richard@nod.at>
Co-authored-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/compat.h')
0 files changed, 0 insertions, 0 deletions