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Davidlohr Bueso a0cff57bb2 kvm,x86: Fix apf_task_wake_one() wq serialization 
During code inspection, the following potential race was seen:

CPU0   	    		    	     	CPU1
kvm_async_pf_task_wait			apf_task_wake_one
					  [L] swait_active(&n->wq)
  [S] prepare_to_swait(&n.wq)
  [L] if (!hlist_unhahed(&n.link))
	schedule()			  [S] hlist_del_init(&n->link);

Properly serialize swait_active() checks such that a wakeup is
not missed.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-15 16:57:12 +02:00
..
alpha Merge branch 'akpm' (patches from Andrew) 2017-09-06 20:49:49 -07:00
arc MMC core: 2017-09-07 12:24:50 -07:00
arm First batch of KVM changes for 4.14 2017-09-08 15:18:36 -07:00
arm64 First batch of KVM changes for 4.14 2017-09-08 15:18:36 -07:00
blackfin Merge branches 'doc.2017.08.17a', 'fixes.2017.08.17a', 'hotplug.2017.07.25b', 'misc.2017.08.17a', 'spin_unlock_wait_no.2017.08.17a', 'srcu.2017.07.27c' and 'torture.2017.07.24c' into HEAD 2017-08-17 08:10:04 -07:00
c6x c6x: Convert to using %pOF instead of full_name 2017-08-24 09:35:40 -04:00
cris cris: Mark _stext and _end as char-arrays, not single char variables 2017-08-10 16:28:53 +02:00
frv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
h8300 h8300: Mark _stext and _etext as char-arrays, not single char variables 2017-08-10 16:28:52 +02:00
hexagon Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 11:52:29 -07:00
ia64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
m32r Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
m68k m68k updates for 4.14 2017-09-05 09:34:49 -07:00
metag metag/numa: remove the unused parent_node() macro 2017-09-06 17:27:24 -07:00
microblaze DeviceTree updates for 4.14: 2017-09-07 14:43:33 -07:00
mips First batch of KVM changes for 4.14 2017-09-08 15:18:36 -07:00
mn10300 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
nios2 nios2: move generic-y of exported headers to uapi/asm/Kbuild 2017-07-11 21:33:43 +09:00
openrisc futex: Remove duplicated code and fix undefined behaviour 2017-08-25 22:49:59 +02:00
parisc Merge branch 'akpm' (patches from Andrew) 2017-09-06 20:49:49 -07:00
powerpc Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2017-09-14 17:21:10 +02:00
s390 First batch of KVM changes for 4.14 2017-09-08 15:18:36 -07:00
score Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
sh Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
sparc Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-09-06 15:17:17 -07:00
tile Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 11:52:29 -07:00
um Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 09:52:57 -07:00
unicore32 unicore32: move generic-y of exported headers to uapi/asm/Kbuild 2017-07-11 21:33:52 +09:00
x86 kvm,x86: Fix apf_task_wake_one() wq serialization 2017-09-15 16:57:12 +02:00
xtensa Merge branch 'akpm' (patches from Andrew) 2017-09-06 20:49:49 -07:00
.gitignore
Kconfig - For the randstruct plugin, enable automatic randomization of structures 2017-09-07 20:30:19 -07:00