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thp: fix comments of __pmd_trans_huge_lock()

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To make the comments consistent with the already changed code.

Link: http://lkml.kernel.org/r/1466200004-6196-1-git-send-email-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Huang Ying 2016-07-26 15:27:04 -07:00 committed by Linus Torvalds
parent cb773df88a
commit 8f19b0c058
1 changed files with 3 additions and 3 deletions
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6
mm/huge_memory.c
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@ -1458,10 +1458,10 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
}
/*
* Returns true if a given pmd maps a thp, false otherwise.
* Returns page table lock pointer if a given pmd maps a thp, NULL otherwise.
*
* Note that if it returns true, this routine returns without unlocking page
* table lock. So callers must unlock it.
* Note that if it returns page table lock pointer, this routine returns without
* unlocking page table lock. So callers must unlock it.
*/
spinlock_t *__pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma)
{