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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
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14
mm/mmap.c
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@@ -260,9 +260,9 @@ void unlink_file_vma(struct vm_area_struct *vma)
if (file) {
struct address_space *mapping = file->f_mapping;
mutex_lock(&mapping->i_mmap_mutex);
i_mmap_lock_write(mapping);
__remove_shared_vm_struct(vma, file, mapping);
mutex_unlock(&mapping->i_mmap_mutex);
i_mmap_unlock_write(mapping);
}
}
@@ -674,14 +674,14 @@ static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
if (vma->vm_file) {
mapping = vma->vm_file->f_mapping;
mutex_lock(&mapping->i_mmap_mutex);
i_mmap_lock_write(mapping);
}
__vma_link(mm, vma, prev, rb_link, rb_parent);
__vma_link_file(vma);
if (mapping)
mutex_unlock(&mapping->i_mmap_mutex);
i_mmap_unlock_write(mapping);
mm->map_count++;
validate_mm(mm);
@@ -796,7 +796,7 @@ again: remove_next = 1 + (end > next->vm_end);
next->vm_end);
}
mutex_lock(&mapping->i_mmap_mutex);
i_mmap_lock_write(mapping);
if (insert) {
/*
* Put into interval tree now, so instantiated pages
@@ -883,7 +883,7 @@ again: remove_next = 1 + (end > next->vm_end);
anon_vma_unlock_write(anon_vma);
}
if (mapping)
mutex_unlock(&mapping->i_mmap_mutex);
i_mmap_unlock_write(mapping);
if (root) {
uprobe_mmap(vma);
@@ -3182,7 +3182,7 @@ static void vm_unlock_mapping(struct address_space *mapping)
* AS_MM_ALL_LOCKS can't change to 0 from under us
* because we hold the mm_all_locks_mutex.
*/
mutex_unlock(&mapping->i_mmap_mutex);
i_mmap_unlock_write(mapping);
if (!test_and_clear_bit(AS_MM_ALL_LOCKS,
&mapping->flags))
BUG();