kernel_samsung_sm7125

jenna

History

Rafael J. Wysocki 8314418629 Freezer: make kernel threads nonfreezable by default Currently, the freezer treats all tasks as freezable, except for the kernel threads that explicitly set the PF_NOFREEZE flag for themselves. This approach is problematic, since it requires every kernel thread to either set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't care for the freezing of tasks at all. It seems better to only require the kernel threads that want to or need to be frozen to use some freezer-related code and to remove any freezer-related code from the other (nonfreezable) kernel threads, which is done in this patch. The patch causes all kernel threads to be nonfreezable by default (ie. to have PF_NOFREEZE set by default) and introduces the set_freezable() function that should be called by the freezable kernel threads in order to unset PF_NOFREEZE. It also makes all of the currently freezable kernel threads call set_freezable(), so it shouldn't cause any (intentional) change of behaviour to appear. Additionally, it updates documentation to describe the freezing of tasks more accurately. [akpm@linux-foundation.org: build fixes] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
..
Makefile	…
clntlock.c	NLM: don't use CLONE_SIGHAND in nlmclnt_recovery	18 years ago
clntproc.c	…
host.c	NLM: fix source address of callback to client	18 years ago
mon.c	SUNRPC: Kill rpc_clnt->cl_oneshot	18 years ago
svc.c	Freezer: make kernel threads nonfreezable by default	18 years ago
svc4proc.c	…
svclock.c	…
svcproc.c	…
svcshare.c	…
svcsubs.c	…
xdr.c	NLM: Fix sparse warnings	18 years ago
xdr4.c	NLM: Fix sparse warnings	18 years ago