Xiao Guangrong 911891afe1 thp: move khugepaged_mutex out of khugepaged ... Currently, hugepaged_mutex is used really complexly and hard to understand, actually, it is just used to serialize start_khugepaged and khugepaged for these reasons: - khugepaged_thread is shared between them - the thp disable path (echo never > transparent_hugepage/enabled) is nonblocking, so we need to protect khugepaged_thread to get a stable running state These can be avoided by: - use the lock to serialize the thread creation and cancel - thp disable path can not finised until the thread exits Then khugepaged_thread is fully controlled by start_khugepaged, khugepaged will be happy without the lock Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-10-09 16:22:25 +09:00
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backing-dev.c
bootmem.c
bounce.c
cleancache.c
compaction.c
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap.c
filemap_xip.c
fremap.c
frontswap.c
highmem.c
huge_memory.c	thp: move khugepaged_mutex out of khugepaged	2012-10-09 16:22:25 +09:00
hugetlb.c
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c
madvise.c
Makefile
memblock.c
memcontrol.c
memory-failure.c
memory.c
memory_hotplug.c
mempolicy.c
mempool.c
migrate.c
mincore.c
mlock.c
mm_init.c
mmap.c
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c
oom_kill.c
page-writeback.c
page_alloc.c
page_cgroup.c
page_io.c
page_isolation.c
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
prio_tree.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c
shmem.c
slab.c
slab.h
slab_common.c
slob.c
slub.c
sparse-vmemmap.c
sparse.c
swap.c
swap_state.c
swapfile.c
truncate.c
util.c
vmalloc.c
vmscan.c
vmstat.c