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2013-07-03docbook: add futexes to kernel-locking docbookRandy Dunlap1-1/+6
Add Fast User Mutexes (futexes) to kernel-locking docbook. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-10-07Merge branch 'rcu/urgent' of ↵Ingo Molnar1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/rcu
2010-09-03mutex: Fix annotations to include it in kernel-locking docbookRandy Dunlap1-0/+6
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>
2010-08-23Merge branch 'rcu/next' of ↵Ingo Molnar1-10/+4
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/rcu
2010-08-20Documentation: kernel-locking: mutex_trylock cannot be used in interrupt contextStefan Richter1-2/+5
Chapter 6 is right about mutex_trylock, but chapter 10 wasn't. This error was introduced during semaphore-to-mutex conversion of the Unreliable guide. :-) If user context which performs mutex_lock() or mutex_trylock() is preempted by interrupt context which performs mutex_trylock() on the same mutex instance, a deadlock occurs. This is because these functions do not disable local IRQs when they operate on mutex->wait_lock. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-19Update call_rcu() usage, add synchronize_rcu()Paul E. McKenney1-2/+4
Reported-by: Kyle Hubert <khubert@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2010-08-19Update documentation to note the passage of INIT_RCU_HEAD()Paul E. McKenney1-8/+0
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2008-07-24Remove mention of semaphores from kernel-lockingMatthew Wilcox1-33/+24
Since the consensus seems to be to eliminate semaphores where possible, we shouldn't be educating people about how to use them as locks. Use mutexes instead. Semaphores should be described in a separate document if we end up keeping them. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au>
2008-05-23doc: add a chapter about trylock functions [Bug 9011]Matti Linnanvuori1-0/+25
Add a chapter about trylock functions. http://bugzilla.kernel.org/show_bug.cgi?id=9011 Signed-off-by: Matti Linnanvuori <mattilinnanvuori@yahoo.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (removed down_trylock)
2008-04-21Merge branch 'for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial: (24 commits) DOC: A couple corrections and clarifications in USB doc. Generate a slightly more informative error msg for bad HZ fix typo "is" -> "if" in Makefile ext*: spelling fix prefered -> preferred DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs. KEYS: Fix the comment to match the file name in rxrpc-type.h. RAID: remove trailing space from printk line DMA engine: typo fixes Remove unused MAX_NODES_SHIFT MAINTAINERS: Clarify access to OCFS2 development mailing list. V4L: Storage class should be before const qualifier (sn9c102) V4L: Storage class should be before const qualifier sonypi: Storage class should be before const qualifier intel_menlow: Storage class should be before const qualifier DVB: Storage class should be before const qualifier arm: Storage class should be before const qualifier ALSA: Storage class should be before const qualifier acpi: Storage class should be before const qualifier firmware_sample_driver.c: fix coding style MAINTAINERS: Add ati_remote2 driver ... Fixed up trivial conflicts in firmware_sample_driver.c
2008-04-21DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs.Robert P. J. Day1-2/+2
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
2008-04-18Convert asm/semaphore.h users to linux/semaphore.hMatthew Wilcox1-3/+3
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2008-02-06docs: kernel-locking: Convert semaphore referencesDaniel Walker1-16/+16
I converted some of the document to reflect mutex usage instead of semaphore usage. Since we shouldin't be promoting semaphore usage when it's on it's way out.. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22DocBook: Change a headline in kernel-locking to list all three main types of ↵Linus Nilsson1-1/+1
locking. Change a headline to reflect that there are three main types of kernel locking, not two. Signed-off-by: Linus Nilsson <lajnold@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-17docbook: make kernel-locking table readableRandy Dunlap1-45/+78
Andi Kleen pointed out to me that the kernel locking cheat sheet table entries are unreadable. Make table entries smaller so that pdf and ps output is readable (columns were being overwritten and garbled) by using abbreviations. This allows the tables to fit on one page cleanly. Add a Legend for the abbreviations: SLIS: spin_lock_irqsave SLI: spin_lock_irq SL: spin_lock SLBH: spin_lock_bh DI: down_interruptible 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>
2006-06-26typo fixesolecom@mail.ru1-1/+1
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-09[PATCH] mutex subsystem, documentationIngo Molnar1-8/+14
Add mutex design related documentation. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+2088
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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