diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2019-01-10 19:04:44 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2019-02-07 16:47:32 +0100 |
| commit | e7fce6d94cc1f7d7ccb6e79dbf7062baec45e142 (patch) | |
| tree | e26b42b47340198645dd309435db97aa4eb53d3f /include/linux/fanotify.h | |
| parent | 235328d1fa4251c6dcb32351219bb553a58838d2 (diff) | |
fanotify: report FAN_ONDIR to listener with FAN_REPORT_FID
dirent modification events (create/delete/move) do not carry the
child entry name/inode information. Instead, we report FAN_ONDIR
for mkdir/rmdir so user can differentiate them from creat/unlink.
This is consistent with inotify reporting IN_ISDIR with dirent events
and is useful for implementing recursive directory tree watcher.
We avoid merging dirent events referring to subdirs with dirent events
referring to non subdirs, otherwise, user won't be able to tell from a
mask FAN_CREATE|FAN_DELETE|FAN_ONDIR if it describes mkdir+unlink pair
or rmdir+create pair of events.
For backward compatibility and consistency, do not report FAN_ONDIR
to user in legacy fanotify mode (reporting fd) and report FAN_ONDIR
to user in FAN_REPORT_FID mode for all event types.
Cc: <linux-api@vger.kernel.org>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/linux/fanotify.h')
| -rw-r--r-- | include/linux/fanotify.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h index e9d45387089f..b79fa9bb7359 100644 --- a/include/linux/fanotify.h +++ b/include/linux/fanotify.h @@ -67,7 +67,7 @@ /* Events that may be reported to user */ #define FANOTIFY_OUTGOING_EVENTS (FANOTIFY_EVENTS | \ FANOTIFY_PERM_EVENTS | \ - FAN_Q_OVERFLOW) + FAN_Q_OVERFLOW | FAN_ONDIR) #define ALL_FANOTIFY_EVENT_BITS (FANOTIFY_OUTGOING_EVENTS | \ FANOTIFY_EVENT_FLAGS) |