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| author | Theodore Ts'o <[email protected]> | 2021-08-21 03:44:17 +0000 |
|---|---|---|
| committer | Theodore Ts'o <[email protected]> | 2021-08-31 03:36:50 +0000 |
| commit | a54c4613dac1500b40e4ab55199f7c51f028e848 (patch) | |
| tree | bc30df927da83ea3ac12345fcea64f104e6b8230 /fs/ext4/fast_commit.c | |
| parent | jbd2: add sparse annotations for add_transaction_credits() (diff) | |
| download | kernel-a54c4613dac1500b40e4ab55199f7c51f028e848.tar.gz kernel-a54c4613dac1500b40e4ab55199f7c51f028e848.zip | |
ext4: fix race writing to an inline_data file while its xattrs are changing
The location of the system.data extended attribute can change whenever
xattr_sem is not taken. So we need to recalculate the i_inline_off
field since it mgiht have changed between ext4_write_begin() and
ext4_write_end().
This means that caching i_inline_off is probably not helpful, so in
the long run we should probably get rid of it and shrink the in-memory
ext4 inode slightly, but let's fix the race the simple way for now.
Cc: [email protected]
Fixes: f19d5870cbf72 ("ext4: add normal write support for inline data")
Reported-by: [email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Diffstat (limited to 'fs/ext4/fast_commit.c')
0 files changed, 0 insertions, 0 deletions