Peter Zijlstra 0fb024c437 perf: Fix perf ring buffer memory ordering ... commit bf378d341e upstream. The PPC64 people noticed a missing memory barrier and crufty old comments in the perf ring buffer code. So update all the comments and add the missing barrier. When the architecture implements local_t using atomic_long_t there will be double barriers issued; but short of introducing more conditional barrier primitives this is the best we can do. Reported-by: Victor Kaplansky <victork@il.ibm.com> Tested-by: Victor Kaplansky <victork@il.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: michael@ellerman.id.au Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Michael Neuling <mikey@neuling.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: anton@samba.org Cc: benh@kernel.crashing.org Link: http://lkml.kernel.org/r/20131025173749.GG19466@laptop.lan Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-11-20 12:27:47 -08:00
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asm-generic	net: add option to enable error queue packets waking select	2013-03-31 19:44:20 -04:00
drm	drm: Pad drm_mode_get_connector to 64-bit boundary	2013-11-13 12:05:34 +09:00
linux	perf: Fix perf ring buffer memory ordering	2013-11-20 12:27:47 -08:00
mtd
rdma	IB/uverbs: Implement memory windows support in uverbs	2013-02-21 11:59:09 -08:00
scsi	FCoE Updates for 3.9	2013-03-01 09:10:08 +00:00
sound	ALSA: add DSD formats	2013-04-18 10:02:33 +02:00
video	UAPI: (Scripted) Disintegrate include/video	2012-12-20 17:14:26 +00:00
xen
Kbuild