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authorJason Low <jason.low2@hpe.com>2016-06-04 05:26:02 (GMT)
committerIngo Molnar <mingo@kernel.org>2016-06-08 13:16:42 (GMT)
commit8ee62b1870be8e630158701632a533d0378e15b8 (patch)
tree18f68e695ee974f059703e75957e201695049cb9 /scripts/Makefile.help
parent055ce0fd1b86c204430cbc0887165599d6e15090 (diff)
downloadlinux-8ee62b1870be8e630158701632a533d0378e15b8.tar.xz
locking/rwsem: Convert sem->count to 'atomic_long_t'
Convert the rwsem count variable to an atomic_long_t since we use it as an atomic variable. This also allows us to remove the rwsem_atomic_{add,update}() "abstraction" which would now be an unnecesary level of indirection. In follow up patches, we also remove the rwsem_atomic_{add,update}() definitions across the various architectures. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Jason Low <jason.low2@hpe.com> [ Build warning fixes on various architectures. ] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jason Low <jason.low2@hp.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: Terry Rudd <terry.rudd@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Waiman Long <Waiman.Long@hpe.com> Link: http://lkml.kernel.org/r/1465017963-4839-2-git-send-email-jason.low2@hpe.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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