Shakeel Butt ec16545096 memcg, fsnotify: no oom-kill for remote memcg charging ... Commit d46eb14b73 ("fs: fsnotify: account fsnotify metadata to kmemcg") added remote memcg charging for fanotify and inotify event objects. The aim was to charge the memory to the listener who is interested in the events but without triggering the OOM killer. Otherwise there would be security concerns for the listener. At the time, oom-kill trigger was not in the charging path. A parallel work added the oom-kill back to charging path i.e. commit 29ef680ae7 ("memcg, oom: move out_of_memory back to the charge path"). So to not trigger oom-killer in the remote memcg, explicitly add __GFP_RETRY_MAYFAIL to the fanotigy and inotify event allocations. Link: http://lkml.kernel.org/r/20190514212259.156585-2-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Roman Gushchin <guro@fb.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-07-12 11:05:43 -07:00
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dnotify	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118	2019-05-24 17:39:02 +02:00
fanotify	memcg, fsnotify: no oom-kill for remote memcg charging	2019-07-12 11:05:43 -07:00
inotify	memcg, fsnotify: no oom-kill for remote memcg charging	2019-07-12 11:05:43 -07:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fdinfo.c	fsnotify/fdinfo: include fdinfo.h for inotify_show_fdinfo()	2018-11-15 17:34:27 +01:00
fdinfo.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fsnotify.c	fsnotify: get rid of fsnotify_nameremove()	2019-06-20 14:47:54 +02:00
fsnotify.h	fsnotify: add super block object type	2018-09-03 15:14:01 +02:00
group.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18	2019-05-21 11:28:46 +02:00
mark.c	fanotify: update connector fsid cache on add mark	2019-06-19 15:53:58 +02:00
notification.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18	2019-05-21 11:28:46 +02:00