Marcelo Tosatti 84261923d3 KVM: protect concurrent make_all_cpus_request ... make_all_cpus_request contains a race condition which can trigger false request completed status, as follows: CPU0 CPU1 if (test_and_set_bit(req,&vcpu->requests)) .... if (test_and_set_bit(req,&vcpu->requests)) .. return proceed to smp_call_function_many(wait=1) Use a spinlock to serialize concurrent CPUs. Cc: stable@kernel.org Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2009-06-28 14:10:29 +03:00
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acpi	Merge branch 'bjorn-notify' into release	2009-06-24 01:22:20 -04:00
asm-generic	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic	2009-06-23 11:34:24 -07:00
crypto	…
drm	drm: Fix shifts which were miscalculated when converting from bitfields.	2009-06-24 16:11:04 +10:00
keys	…
linux	KVM: protect concurrent make_all_cpus_request	2009-06-28 14:10:29 +03:00
math-emu	…
media	V4L/DVB (11901): v4l2: Create helper function for bounding and aligning images	2009-06-23 03:21:18 -03:00
mtd	…
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2009-06-24 10:01:12 -07:00
pcmcia	…
rdma	…
rxrpc	…
scsi	sd, sr: fix Driver 'sd' needs updating message	2009-06-21 12:01:27 -05:00
sound	…
trace	ext4: convert instrumentation from markers to tracepoints	2009-06-17 11:48:11 -04:00
video	fbdev: s1d13xxxfb: add accelerated bitblt functions	2009-06-16 19:48:00 -07:00
xen	…
Kbuild	[SCSI] FC Pass Thru support	2009-06-12 14:20:05 -05:00