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7 Commits

Author SHA1 Message Date
Davidlohr Bueso
9161f54097 locking/mutexes: Documentation update/rewrite 
Our mutexes have gone a long ways since the original
implementation back in 2005/2006. However, the mutex-design.txt
document is still stuck in the past, to the point where most of
the information there is practically useless and, more
important, simply incorrect. This patch pretty much rewrites it
to resemble what we have nowadays.

Since regular semaphores are almost much extinct in the kernel
(most users now rely on mutexes or rwsems), it no longer makes
sense to have such a close comparison, which was copied from
most of the cover letter when Ingo introduced the generic mutex
subsystem.

Note that ww_mutexes are intentionally left out, leaving things
as generic as possible.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: tim.c.chen@linux.intel.com
Cc: paulmck@linux.vnet.ibm.com
Cc: waiman.long@hp.com
Cc: jason.low2@hp.com
Cc: aswin@hp.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1401338203.2618.11.camel@buesod1.americas.hpqcorp.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2014-06-05 13:29:37 +02:00
Peter Zijlstra
67a6de49bf locking/doc: Update references to kernel/mutex.c 
Fix this docbook error:

  >> docproc: kernel/mutex.c: No such file or directory

by updating the stale references to kernel/mutex.c.

Reported-by: fengguang.wu@intel.com
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-34pikw1tlsskj65rrt5iusrq@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2013-11-11 12:41:33 +01:00
Randy Dunlap
ef5dc121d5 mutex: Fix annotations to include it in kernel-locking docbook 
Fix kernel-doc notation in linux/mutex.h and kernel/mutex.c,
then add these 2 files to the kernel-locking docbook as the
Mutex API reference chapter.

Add one API function to mutex-design.txt and correct a typo in
that file.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
LKML-Reference: <20100902154816.6cc2f9ad.randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2010-09-03 08:19:51 +02:00
Denys Vlasenko
75ddb0e87d Rename .text.lock to .text..lock. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
 2010-03-03 11:26:00 +01:00
Robert P. J. Day
343b901980 Documentation: Add nested versions of mutex locks to docs 
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
 2007-10-20 00:15:26 +02:00
Matti Linnanvuori
f20fda4861 Mutex documentation is unclear about software interrupts, tasklets and timers 
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2007-10-17 08:42:57 -07:00
Ingo Molnar
f3f54ffa70 [PATCH] mutex subsystem, documentation 
Add mutex design related documentation.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
 2006-01-09 15:59:20 -08:00