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| author | Theodore Ts'o <tytso@mit.edu> | 2014-02-12 12:16:04 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-02-12 12:16:04 -0500 |
| commit | 23301410972330c0ae9a8afc379ba2005e249cc6 (patch) | |
| tree | 5931e3ca6be2f6d7b98525ce204f908c30a30936 /fs/namei.c | |
| parent | 30d29b119ef01776e0a301444ab24defe8d8bef3 (diff) | |
| download | blackbird-op-linux-23301410972330c0ae9a8afc379ba2005e249cc6.tar.gz blackbird-op-linux-23301410972330c0ae9a8afc379ba2005e249cc6.zip | |
ext4: don't try to modify s_flags if the the file system is read-only
If an ext4 file system is created by some tool other than mke2fs
(perhaps by someone who has a pathalogical fear of the GPL) that
doesn't set one or the other of the EXT2_FLAGS_{UN}SIGNED_HASH flags,
and that file system is then mounted read-only, don't try to modify
the s_flags field. Otherwise, if dm_verity is in use, the superblock
will change, causing an dm_verity failure.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/namei.c')
0 files changed, 0 insertions, 0 deletions
