linux/fs/notify/fanotify
Gabriel Krisman Bertazi cc53b55f69 fsnotify: Don't insert unmergeable events in hashtable
Some events, like the overflow event, are not mergeable, so they are not
hashed.  But, when failing inside fsnotify_add_event for lack of space,
fsnotify_add_event() still calls the insert hook, which adds the
overflow event to the merge list.  Add a check to prevent any kind of
unmergeable event to be inserted in the hashtable.

Fixes: 94e00d28a6 ("fsnotify: use hash table for faster events merge")
Link: https://lore.kernel.org/r/20211025192746.66445-5-krisman@collabora.com
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2021-10-27 12:33:04 +02:00
..
fanotify_user.c \n 2021-08-30 10:04:31 -07:00
fanotify.c fsnotify: Don't insert unmergeable events in hashtable 2021-10-27 12:33:04 +02:00
fanotify.h fsnotify: use hash table for faster events merge 2021-03-16 16:37:51 +01:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00