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| author | Li Zefan <lizf@cn.fujitsu.com> | 2012-02-21 17:04:28 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2012-04-18 19:12:44 +0200 |
| commit | 848cce0d4102b5b4b26b0987b43e1919d462afe2 (patch) | |
| tree | 92f2be7324929c9b213c1fcd616b11cc1a479d20 /crypto/internal.h | |
| parent | d53ba47484ed6245e640ee4bfe9d21e9bfc15765 (diff) | |
Btrfs: avoid setting ->d_op twice
Follow those instructions, and you'll trigger a warning in the
beginning of d_set_d_op():
# mkfs.btrfs /dev/loop3
# mount /dev/loop3 /mnt
# btrfs sub create /mnt/sub
# btrfs sub snap /mnt /mnt/snap
# touch /mnt/snap/sub
touch: cannot touch `tmp': Permission denied
__d_alloc() set d_op to sb->s_d_op (btrfs_dentry_operations), and
then simple_lookup() reset it to simple_dentry_operations, which
triggered the warning.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Diffstat (limited to 'crypto/internal.h')
0 files changed, 0 insertions, 0 deletions