ovl: fsync after copy-up

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[ Upstream commit 641089c154 ]

Make sure the copied up file hits the disk before renaming to the final
destination.  If this is not done then the copy-up may corrupt the data in
the file in case of a crash.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>

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Miklos Szeredi 2016-10-31 14:42:14 +01:00 • committed by Sasha Levin

parent cc30a01ae4

commit dff2cd539e

1 changed files with 2 additions and 0 deletions

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fs/overlayfs/copy_up.c

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