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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 16:58:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 16:58:51 -0700 |
| commit | a8988507e577a89ccaf66b48ea645bcf6e861270 (patch) | |
| tree | d05531ad7078d9dda1733c0741aa8b9f9148f6aa /include | |
| parent | cb7cbaae7fd9cee64f19cdfd89d097d807b884f5 (diff) | |
| parent | f92ca72b0263d601807bbd23ed25cbe6f4da89f4 (diff) | |
| download | linux-a8988507e577a89ccaf66b48ea645bcf6e861270.tar.bz2 | |
Merge tag 'fsnotify_for_v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"A few fsnotify improvements and cleanups"
* tag 'fsnotify_for_v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fsnotify: remove redundant parameter judgment
fsnotify: optimize FS_MODIFY events with no ignored masks
fsnotify: fix merge with parent's ignored mask
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fsnotify_backend.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 790c31844db5..0805b74cae44 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -601,6 +601,25 @@ extern void fsnotify_remove_queued_event(struct fsnotify_group *group, /* functions used to manipulate the marks attached to inodes */ +/* Get mask for calculating object interest taking ignored mask into account */ +static inline __u32 fsnotify_calc_mask(struct fsnotify_mark *mark) +{ + __u32 mask = mark->mask; + + if (!mark->ignored_mask) + return mask; + + /* Interest in FS_MODIFY may be needed for clearing ignored mask */ + if (!(mark->flags & FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY)) + mask |= FS_MODIFY; + + /* + * If mark is interested in ignoring events on children, the object must + * show interest in those events for fsnotify_parent() to notice it. + */ + return mask | (mark->ignored_mask & ALL_FSNOTIFY_EVENTS); +} + /* Get mask of events for a list of marks */ extern __u32 fsnotify_conn_mask(struct fsnotify_mark_connector *conn); /* Calculate mask of events for a list of marks */ |