linux_dsm_epyc7002/arch/x86
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
..
boot Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-07 09:42:35 -07:00
configs Merge branch 'x86/urgent' into x86/asm, to pick up fixes 2017-08-10 13:14:15 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-08-22 14:53:32 +08:00
entry Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 17:43:56 -07:00
events Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 13:56:37 -07:00
hyperv tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others() 2017-08-31 14:20:37 +02:00
ia32 x86/asm/32: Remove a bunch of '& 0xffff' from pt_regs segment reads 2017-07-30 12:04:41 +02:00
include KVM: Add struct kvm_vcpu pointer parameter to get_enable_apicv() 2017-09-13 18:29:06 +02:00
kernel kvm,x86: Fix apf_task_wake_one() wq serialization 2017-09-15 16:57:12 +02:00
kvm kvm,lapic: Justify use of swait_active() 2017-09-15 16:57:11 +02:00
lib x86/boot: Add early cmdline parsing for options with arguments 2017-07-18 11:38:06 +02:00
math-emu Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 17:43:56 -07:00
mm x86/mm: Reinitialize TLB state on hotplug and resume 2017-09-06 20:12:57 -07:00
net x86: bpf_jit: small optimization in emit_bpf_tail_call() 2017-08-31 11:57:37 -07:00
oprofile
pci Merge branch 'x86/mm' into x86/platform, to pick up TLB flush dependency 2017-08-31 14:20:06 +02:00
platform Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-07 09:42:35 -07:00
power x86/mm: Reinitialize TLB state on hotplug and resume 2017-09-06 20:12:57 -07:00
purgatory kasan: do not sanitize kexec purgatory 2017-03-31 17:13:30 -07:00
ras x86/mce: Merge mce_amd_inj into mce-inject 2017-06-14 07:32:07 +02:00
realmode x86/boot/realmode: Check for memory encryption on the APs 2017-07-18 11:38:04 +02:00
tools x86/tools: Fix gcc-7 warning in relocs.c 2016-12-19 11:50:24 +01:00
um um: Fix check for _xstate for older hosts 2017-08-24 21:52:28 +02:00
video
xen xen: fixes and features for 4.14 2017-09-07 10:24:21 -07:00
.gitignore
Kbuild Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-07 09:25:15 -07:00
Kconfig x86,mpx: make mpx depend on x86-64 to free up VMA flag 2017-09-06 17:27:30 -07:00
Kconfig.cpu
Kconfig.debug Merge branch 'x86/asm' into locking/core 2017-08-18 10:29:54 +02:00
Makefile x86/build: Use cc-option to validate stack alignment parameter 2017-08-21 09:53:15 +02:00
Makefile_32.cpu kbuild: remove cc-option-align 2017-06-25 12:43:00 +09:00
Makefile.um