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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 <dbueso@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: "Kirill A. Shutemov" <kirill@shutemov.name>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Davidlohr Bueso
2014-12-12 16:54:21 -08:00
committed by Linus Torvalds
parent 8b28f621be
commit 83cde9e8ba
12 changed files with 40 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
mm/memory.c
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@@ -1326,9 +1326,9 @@ static void unmap_single_vma(struct mmu_gather *tlb,
* safe to do nothing in this case.
*/
if (vma->vm_file) {
mutex_lock(&vma->vm_file->f_mapping->i_mmap_mutex);
i_mmap_lock_write(vma->vm_file->f_mapping);
__unmap_hugepage_range_final(tlb, vma, start, end, NULL);
mutex_unlock(&vma->vm_file->f_mapping->i_mmap_mutex);
i_mmap_unlock_write(vma->vm_file->f_mapping);
}
} else
unmap_page_range(tlb, vma, start, end, details);
@@ -2377,12 +2377,12 @@ void unmap_mapping_range(struct address_space *mapping,
details.last_index = ULONG_MAX;
mutex_lock(&mapping->i_mmap_mutex);
i_mmap_lock_write(mapping);
if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap)))
unmap_mapping_range_tree(&mapping->i_mmap, &details);
if (unlikely(!list_empty(&mapping->i_mmap_nonlinear)))
unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details);
mutex_unlock(&mapping->i_mmap_mutex);
i_mmap_unlock_write(mapping);
}
EXPORT_SYMBOL(unmap_mapping_range);