e220140ff6
"dirent" events are referring to events that modify directory entries, such as create,delete,rename. Those events are always be reported on a watched directory, regardless if FS_EVENT_ON_CHILD is set on the watch mask. ALL_FSNOTIFY_DIRENT_EVENTS defines all the dirent event types and those event types are removed from FS_EVENTS_POSS_ON_CHILD. That means for a directory with an inotify watch and only dirent events in the mask (i.e. create,delete,move), all children dentries will no longer have the DCACHE_FSNOTIFY_PARENT_WATCHED flag set. This will allow all events that happen on children to be optimized away in __fsnotify_parent() without the need to dereference child->d_parent->d_inode->i_fsnotify_mask. Since the dirent events are never repoted via __fsnotify_parent(), this results in no change of logic, but only an optimization. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||