diff options
| author | Davidlohr Bueso <dave@stgolabs.net> | 2014-12-12 16:54:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-13 12:42:45 -0800 |
| commit | 83cde9e8ba95d180eaefefe834958fbf7008cf39 (patch) | |
| tree | 041dd6f0bc4e41baec1a46422683596111e1e2a8 /kernel/fork.c | |
| parent | 8b28f621bea6f84d44adf7e804b73aff1e09105b (diff) | |
| download | linux-83cde9e8ba95d180eaefefe834958fbf7008cf39.tar.bz2 | |
mm: use new helper functions around the i_mmap_mutex
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>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 9ca84189cfc2..4dc2ddade9f1 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -433,7 +433,7 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) get_file(file); if (tmp->vm_flags & VM_DENYWRITE) atomic_dec(&inode->i_writecount); - mutex_lock(&mapping->i_mmap_mutex); + i_mmap_lock_write(mapping); if (tmp->vm_flags & VM_SHARED) atomic_inc(&mapping->i_mmap_writable); flush_dcache_mmap_lock(mapping); @@ -445,7 +445,7 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap); flush_dcache_mmap_unlock(mapping); - mutex_unlock(&mapping->i_mmap_mutex); + i_mmap_unlock_write(mapping); } /* |