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* plist: Remove the need to supply locks to plist headsDima Zavin2011-07-081-52/+3
| | | | | | | | | | | | | | | This was legacy code brought over from the RT tree and is no longer necessary. Signed-off-by: Dima Zavin <dima@android.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Daniel Walker <dwalker@codeaurora.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Link: http://lkml.kernel.org/r/1310084879-10351-2-git-send-email-dima@android.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* plist: Shrink struct plist_headLai Jiangshan2011-03-111-23/+24
| | | | | | | | | | | | | | struct plist_head is used in struct task_struct as well as struct rtmutex. If we can make it smaller, it will also make these structures smaller as well. The field prio_list in struct plist_head is seldom used and we can get its information from the plist_nodes. Removing this field will decrease the size of plist_head by half. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> LKML-Reference: <4D107982.9090700@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* plist: Add plist_lastJames Bottomley2010-07-191-0/+29
| | | | | | | | | | | plist is currently used by the scheduler, which only needs to know the highest item in the list. This adds plist_last which allows you to find the lowest. This is necessary for using plists to implement a fast search of dynamic ranges in pm_qos which can have both highest and lowest criteria. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* plist: Fix grammar mistake, and c-style mistakeJohn Kacur2010-01-131-2/+2
| | | | | | | Signed-off-by: John Kacur <jkacur@redhat.com> Acked-by: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1263241267-25204-2-git-send-email-jkacur@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* plist: Make plist debugging raw_spinlock awareThomas Gleixner2009-12-141-6/+37
| | | | | | | | | plists are used with spinlocks and raw_spinlocks. Change the plist debugging to handle both types. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Ingo Molnar <mingo@elte.hu>
* plist: fix PLIST_NODE_INIT to work with debug enabledGregory Haskins2008-12-291-3/+6
| | | | | | | | | It seems that PLIST_NODE_INIT breaks if used and DEBUG_PI_LIST is defined. Since there are no current users of PLIST_NODE_INIT, this has gone undetected. This patch fixes the build issue that enables the DEBUG_PI_LIST later in the series when we use it in init_task.h Signed-off-by: Gregory Haskins <ghaskins@novell.com>
* kernel-doc: fix plist.h commentsRandy Dunlap2007-04-171-31/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Make kernel-doc comments match macro names. Correct parameter names in a few places. Remove '#' from beginning of kernel-doc comment macro names. Remove extra (erroneous) blank lines in kernel-doc. Warning(plist.h:100): Cannot understand * #PLIST_HEAD_INIT - static struct plist_head initializer on line 100 - I thought it was a doc line Warning(plist.h:112): Cannot understand * #PLIST_NODE_INIT - static struct plist_node initializer on line 112 - I thought it was a doc line Warning(plist.h:103): No description found for parameter '_lock' Warning(plist.h:129): No description found for parameter 'lock' Warning(plist.h:158): No description found for parameter 'pos' Warning(plist.h:169): No description found for parameter 'pos' Warning(plist.h:169): No description found for parameter 'n' Warning(plist.h:179): No description found for parameter 'mem' This still leaves one warning & one error that need attention: Error(plist.h:219): cannot understand prototype: '(' Warning(plist.h): no structured comments found Acked-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Daniel Walker <dwalker@mvista.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] Fix plist include dependencyThomas Gleixner2006-06-281-0/+1
| | | | | | | | | plist.h uses container_of, which is defined in kernel.h. Include kernel.h in plist.h as the kernel.h include does not longer happen automatically on all architectures. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pi-futex: add plist implementationIngo Molnar2006-06-271-0/+247
Add the priority-sorted list (plist) implementation. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>