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mm: use new helper functions around the i_mmap_mutex

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Convert all open coded mutex_lock/unlock calls to the
i_mmap_[lock/unlock]_write() helpers.

Signed-off-by: Davidlohr Bueso <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Acked-by: "Kirill A. Shutemov" <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Srikar Dronamraju <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Davidlohr Bueso 2014-12-12 16:54:21 -08:00 • committed by Linus Torvalds
commit 83cde9e8ba
12 changed files with 40 additions and 40 deletions
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4
mm/mremap.c
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@ -119,7 +119,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
if (need_rmap_locks) {
if (vma->vm_file) {
mapping = vma->vm_file->f_mapping;
mutex_lock(&mapping->i_mmap_mutex);
i_mmap_lock_write(mapping);
}
if (vma->anon_vma) {
anon_vma = vma->anon_vma;
@ -156,7 +156,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
if (anon_vma)
anon_vma_unlock_write(anon_vma);
if (mapping)
mutex_unlock(&mapping->i_mmap_mutex);
i_mmap_unlock_write(mapping);
}
#define LATENCY_LIMIT (64 * PAGE_SIZE)