diff options
| author |   Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2012-10-08 16:29:42 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:26 +0900 |
| commit | e060f0e0139b83f05bb90fa05563d14179b9a7ff (patch) | |
| tree | 6da73af336dfc0f8456dbd3a55159aae32fe5c40 | |
| parent | thp: move khugepaged_mutex out of khugepaged (diff) | |
| download | linux-dev-e060f0e0139b83f05bb90fa05563d14179b9a7ff.tar.xz linux-dev-e060f0e0139b83f05bb90fa05563d14179b9a7ff.zip | |
thp: remove unnecessary khugepaged_thread check
Now, khugepaged creation and cancel are completely serial under the
protection of khugepaged_mutex, it is impossible that many khugepaged
entities are running
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>
| -rw-r--r-- | mm/huge_memory.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 0931b2b19c52..46e3f150a6ca 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2333,11 +2333,8 @@ static int khugepaged(void *none) set_freezable(); set_user_nice(current, 19); - while (!kthread_should_stop()) { - VM_BUG_ON(khugepaged_thread != current); + while (!kthread_should_stop()) khugepaged_loop(); - VM_BUG_ON(khugepaged_thread != current); - } spin_lock(&khugepaged_mm_lock); mm_slot = khugepaged_scan.mm_slot; |