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thp: remove unnecessary check in start_khugepaged

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The check is unnecessary since if mm_slot_cache or mm_slots_hash
initialize failed, no sysfs interface will be created

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>
This commit is contained in:
Xiao Guangrong 2012-10-08 16:29:38 -07:00 committed by Linus Torvalds
parent 65b3c07b43
commit 637e3a27ec
1 changed files with 2 additions and 5 deletions
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7
mm/huge_memory.c
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@ -140,10 +140,7 @@ static int start_khugepaged(void)
int err = 0;
if (khugepaged_enabled()) {
int wakeup;
if (unlikely(!mm_slot_cache || !mm_slots_hash)) {
err = -ENOMEM;
goto out;
}
mutex_lock(&khugepaged_mutex);
if (!khugepaged_thread)
khugepaged_thread = kthread_run(khugepaged, NULL,
@ -163,7 +160,7 @@ static int start_khugepaged(void)
} else
/* wakeup to exit */
wake_up_interruptible(&khugepaged_wait);
out:
return err;
}