imrcpan/erofs-linux
1
0 Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git synced 2026-10-31 22:34:33 +01:00
Code Issues Packages Projects Releases Wiki Activity

mmap: remove unnecessary lock from __vma_link

Browse Source 
There's no anon-vma related mangling happening inside __vma_link anymore
so no need of anon_vma locking there.

Signed-off-by: Andrea Arcangeli <[email protected]>
Signed-off-by: Rik van Riel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrea Arcangeli authored and Linus Torvalds committed 2010-08-09 20:44:58 -07:00
1 parent ff36b80162
commit 5e549e989f
1 file changed
-2
Download Patch File Download Diff File Expand all files Collapse all files
mm/mmap.c
-2
View File
@@ -452,12 +452,10 @@ static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
spin_lock(&mapping->i_mmap_lock);
vma->vm_truncate_count = mapping->truncate_count;
}
vma_lock_anon_vma(vma);
__vma_link(mm, vma, prev, rb_link, rb_parent);
__vma_link_file(vma);
vma_unlock_anon_vma(vma);
if (mapping)
spin_unlock(&mapping->i_mmap_lock);