Davidlohr Bueso cd2567b685 m68k: call find_vma with the mmap_sem held in sys_cacheflush() ... Performing vma lookups without taking the mm->mmap_sem is asking for trouble. While doing the search, the vma in question can be modified or even removed before returning to the caller. Take the lock (shared) in order to avoid races while iterating through the vmacache and/or rbtree. In addition, this guarantees that the address space will remain intact during the CPU flushing. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-10-09 22:26:02 -04:00
..
alpha	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
arc	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
arm	arm: mm: enable RCU fast_gup	2014-10-09 22:26:01 -04:00
arm64	arm64: mm: enable RCU fast_gup	2014-10-09 22:26:01 -04:00
avr32	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
blackfin	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
c6x	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
cris	cris: use Kbuild logic to include <asm-generic/sections.h>	2014-10-09 22:25:45 -04:00
frv	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
hexagon	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
ia64	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
m32r	m32r: remove deprecated IRQF_DISABLED	2014-10-09 22:25:46 -04:00
m68k	m68k: call find_vma with the mmap_sem held in sys_cacheflush()	2014-10-09 22:26:02 -04:00
metag	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
microblaze	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
mips	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
mn10300	mn10300: use Kbuild logic to include <asm-generic/sections.h>	2014-10-09 22:25:45 -04:00
openrisc	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:42:04 -04:00
parisc	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
powerpc	mm: remove misleading ARCH_USES_NUMA_PROT_NONE	2014-10-09 22:25:52 -04:00
s390	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
score	score: use Kbuild logic to include <asm-generic/sections.h>	2014-10-09 22:25:46 -04:00
sh	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
sparc	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
tile	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
um	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
unicore32	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
x86	mm: remove misleading ARCH_USES_NUMA_PROT_NONE	2014-10-09 22:25:52 -04:00
xtensa	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-09 06:30:57 -04:00
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