Peter Zijlstra c33a0bc4e4 perf_counter: fix race in perf_output_* ... When two (or more) contexts output to the same buffer, it is possible to observe half written output. Suppose we have CPU0 doing perf_counter_mmap(), CPU1 doing perf_counter_overflow(). If CPU1 does a wakeup and exposes head to user-space, then CPU2 can observe the data CPU0 is still writing. [ Impact: fix occasionally corrupted profiling records ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090501102533.007821627@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2009-05-01 13:23:43 +02:00
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acpi	Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel	2009-04-28 17:21:20 -07:00
asm-generic	Remove unused support code for refok sections.	2009-04-27 19:51:58 -07:00
crypto	crypto: zlib - New zlib crypto module, using pcomp	2009-03-04 15:16:19 +08:00
drm	drm/i915: add support for G41 chipset	2009-04-21 17:22:53 -07:00
keys
linux	perf_counter: fix race in perf_output_*	2009-05-01 13:23:43 +02:00
math-emu
media	V4L/DVB (11381): ivtv/cx18: remove VIDIOC_INT_S_AUDIO_ROUTING debug support.	2009-04-06 21:44:28 -03:00
mtd	make MTD headers use strict integer types	2009-03-26 18:14:17 +01:00
net	Bluetooth: Add different pairing timeout for Legacy Pairing	2009-04-28 09:31:38 -07:00
pcmcia
rdma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2009-03-26 15:54:36 -07:00
rxrpc
scsi	PM/Hibernate: Wait for SCSI devices scan to complete during resume	2009-04-13 11:37:07 -07:00
sound	Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6	2009-04-20 14:03:04 +01:00
trace	tracing/syscalls: use a dedicated file header	2009-04-09 05:43:32 +02:00
video	include/video/cyblafb.h: remove it, it's unused	2009-04-13 15:04:30 -07:00
xen
Kbuild