Peter Zijlstra e23738a730 sched, inotify: Deal with nested sleeps ... inotify_read is a wait loop with sleeps in. Wait loops rely on task_struct::state and sleeps do too, since that's the only means of actually sleeping. Therefore the nested sleeps destroy the wait loop state and the wait loop breaks the sleep functions that assume TASK_RUNNING (mutex_lock). Fix this by using the new woken_wake_function and wait_woken() stuff, which registers wakeups in wait and thereby allows shrinking the task_state::state changes to the actual sleep part. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: tglx@linutronix.de Cc: ilya.dryomov@inktank.com Cc: umgwanakikbuti@gmail.com Cc: Robert Love <rlove@rlove.org> Cc: Eric Paris <eparis@parisplace.org> Cc: John McCutchan <john@johnmccutchan.com> Cc: Robert Love <rlove@rlove.org> Cc: Oleg Nesterov <oleg@redhat.com> Link: http://lkml.kernel.org/r/20140924082242.254858080@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2014-10-28 10:55:37 +01:00
..
inotify_fsnotify.c	fsnotify: don't put user context if it was never assigned	2014-10-09 22:25:45 -04:00
inotify_user.c	sched, inotify: Deal with nested sleeps	2014-10-28 10:55:37 +01:00
inotify.h	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
Kconfig	inotify: remove inotify in kernel interface	2010-07-28 09:58:31 -04:00
Makefile	inotify: remove inotify in kernel interface	2010-07-28 09:58:31 -04:00