Author: attilio
Date: Tue May 21 20:54:03 2013
New Revision: 250885
URL: http://svnweb.freebsd.org/changeset/base/250885
Log:
vm_object locking is not needed there as pages are already wired.
Sponsored by: EMC / Isilon storage division
Submitted by: alc
Modified:
head/sys/kern/vfs_bio.c
Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c Tue May 21 20:38:19 2013 (r250884)
+++ head/sys/kern/vfs_bio.c Tue May 21 20:54:03 2013 (r250885)
@@ -4211,7 +4211,6 @@ vfs_bio_bzero_buf(struct buf *bp, int ba
} else {
BUF_CHECK_UNMAPPED(bp);
n = PAGE_SIZE - (base & PAGE_MASK);
- VM_OBJECT_WLOCK(bp->b_bufobj->bo_object);
for (i = base / PAGE_SIZE; size > 0 && i < bp->b_npages; ++i) {
m = bp->b_pages[i];
if (n > size)
@@ -4221,7 +4220,6 @@ vfs_bio_bzero_buf(struct buf *bp, int ba
size -= n;
n = PAGE_SIZE;
}
- VM_OBJECT_WUNLOCK(bp->b_bufobj->bo_object);
}
}
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