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Date: Sun, 7 Oct 2018 03:03:38 +0800 From: Chao Yu <chao@...nel.org> To: jaegeuk@...nel.org Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org, Chao Yu <yuchao0@...wei.com> Subject: [PATCH] f2fs: fix to recover inode->i_flags of inode block during POR From: Chao Yu <yuchao0@...wei.com> Testcase to reproduce this bug: 1. mkfs.f2fs /dev/sdd 2. mount -t f2fs /dev/sdd /mnt/f2fs 3. touch /mnt/f2fs/file 4. sync 5. chattr +a /mnt/f2fs/file 6. xfs_io -a /mnt/f2fs/file -c "fsync" 7. godown /mnt/f2fs 8. umount /mnt/f2fs 9. mount -t f2fs /dev/sdd /mnt/f2fs 10. xfs_io /mnt/f2fs/file There is no error when opening this file w/o O_APPEND, but actually, we expect the correct result should be: /mnt/f2fs/file: Operation not permitted The root cause is, in recover_inode(), we recover inode->i_flags more than F2FS_I(inode)->i_flags, so fix it. Signed-off-by: Chao Yu <yuchao0@...wei.com> --- fs/f2fs/recovery.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index af66d6f5683b..eeee3756c3a9 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -275,6 +275,7 @@ static int recover_inode(struct inode *inode, struct page *page) F2FS_I(inode)->i_advise = raw->i_advise; F2FS_I(inode)->i_flags = le32_to_cpu(raw->i_flags); + f2fs_set_inode_flags(inode); F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = le16_to_cpu(raw->i_gc_failures); -- 2.18.0
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