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| author | Theodore Ts'o <tytso@mit.edu> | 2019-08-11 16:32:41 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-08-11 16:32:41 -0400 |
| commit | bb5835edcdf8bf78bbe51cff13e332c439bc0567 (patch) | |
| tree | 74e9498c0cb0f42a3158d0a892181316e5a8a243 /fs/ext4/extents_status.h | |
| parent | 1ad3ea6e0a694b0486eb2cbe60378ad0fbf23642 (diff) | |
| download | linux-stable-bb5835edcdf8bf78bbe51cff13e332c439bc0567.tar.gz linux-stable-bb5835edcdf8bf78bbe51cff13e332c439bc0567.tar.bz2 linux-stable-bb5835edcdf8bf78bbe51cff13e332c439bc0567.zip | |
ext4: add new ioctl EXT4_IOC_GET_ES_CACHE
For debugging reasons, it's useful to know the contents of the extent
cache. Since the extent cache contains much of what is in the fiemap
ioctl, use an fiemap-style interface to return this information.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/extents_status.h')
| -rw-r--r-- | fs/ext4/extents_status.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h index e16785f431e7..eb56a1289031 100644 --- a/fs/ext4/extents_status.h +++ b/fs/ext4/extents_status.h @@ -140,6 +140,7 @@ extern void ext4_es_find_extent_range(struct inode *inode, ext4_lblk_t lblk, ext4_lblk_t end, struct extent_status *es); extern int ext4_es_lookup_extent(struct inode *inode, ext4_lblk_t lblk, + ext4_lblk_t *next_lblk, struct extent_status *es); extern bool ext4_es_scan_range(struct inode *inode, int (*matching_fn)(struct extent_status *es), |