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| author | Jan Kara <jack@suse.cz> | 2020-10-27 14:27:51 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-10-28 13:42:42 -0400 |
| commit | b5b18160a3e7a9f55e3528d77051670cca6d9314 (patch) | |
| tree | 7aeada62c004bbe8858a52f8a4d984ee7e2d4756 /mm/page_idle.c | |
| parent | ea4b01d9b81f5f381fc6832bc31046878a2d1a5d (diff) | |
ext4: fix mmap write protection for data=journal mode
Commit afb585a97f81 "ext4: data=journal: write-protect pages on
j_submit_inode_data_buffers()") added calls ext4_jbd2_inode_add_write()
to track inode ranges whose mappings need to get write-protected during
transaction commits. However the added calls use wrong start of a range
(0 instead of page offset) and so write protection is not necessarily
effective. Use correct range start to fix the problem.
Fixes: afb585a97f81 ("ext4: data=journal: write-protect pages on j_submit_inode_data_buffers()")
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20201027132751.29858-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'mm/page_idle.c')
0 files changed, 0 insertions, 0 deletions