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f2fs: synchronize atomic write aborts
[ Upstream commit a46bebd ] To fix a race condition between atomic write aborts, I use the inode lock and make COW inode to be re-usable thoroughout the whole atomic file inode lifetime. Reported-by: syzbot+823000d23b3400619f7c@syzkaller.appspotmail.com Fixes: 3db1de0 ("f2fs: change the current atomic write way") Signed-off-by: Daeho Jeong <daehojeong@google.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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