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linux-stable/arch/x86/entry/vdso
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Andy Lutomirski 78fd8c7288 x86/vdso/pvclock: Protect STABLE check with the seqcount 
If the clock becomes unstable while we're reading it, we need to
bail.  We can do this by simply moving the check into the
seqcount loop.

Reported-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Alexander Graf <agraf@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/755dcedb17269e1d7ce12a9a713dea303835137e.1451949191.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-13 11:46:29 +01:00
..
vdso32 x86/entry: Restore traditional SYSENTER calling convention 2015-12-21 16:05:01 +01:00
.gitignore x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
checkundef.sh x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
Makefile x86/vdso: Define BUILD_VDSO while building and emit .eh_frame in asm 2015-10-09 09:41:05 +02:00
vclock_gettime.c x86/vdso/pvclock: Protect STABLE check with the seqcount 2016-01-13 11:46:29 +01:00
vdso-layout.lds.S x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap 2015-12-11 08:56:03 +01:00
vdso-note.S x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
vdso.lds.S x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
vdso2c.c x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap 2015-12-11 08:56:03 +01:00
vdso2c.h x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
vdso32-setup.c x86/vdso: Remove runtime 32-bit vDSO selection 2015-10-07 11:34:08 +02:00
vdsox32.lds.S x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
vgetcpu.c x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
vma.c x86/vdso: Remove pvclock fixmap machinery 2015-12-11 08:56:03 +01:00