You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

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
..
isapnp	isapnp: remove pointless check of 'type' against 0 in isapnp_read_tag()	18 years ago
pnpacpi	PNP: notice whether we have PNP devices (PNPBIOS or PNPACPI)	18 years ago
pnpbios	Freezer: make kernel threads nonfreezable by default	18 years ago
Kconfig	Use menuconfig objects: PNP	18 years ago
Makefile	Linux-2.6.12-rc2	20 years ago
base.h	[PATCH] PNP: export pnp_bus_type	18 years ago
card.c	PNP: stop using the subsystem rwsem	18 years ago
core.c	PNP: notice whether we have PNP devices (PNPBIOS or PNPACPI)	18 years ago
driver.c	Remove obsolete #include <linux/config.h>	19 years ago
interface.c	[PATCH] PNP: handle sysfs errors	18 years ago
manager.c	[PATCH] reduce pnp syslog spam	18 years ago
quirks.c	PNP SMCf010 quirk: work around Toshiba Portege 4000 ACPI issues	18 years ago
resource.c	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	19 years ago
support.c	Remove obsolete #include <linux/config.h>	19 years ago
system.c	[PATCH] Correctly report PnP 64bit resources	18 years ago