Author: alc
Date: Wed Jun 16 00:41:21 2010
New Revision: 209226
URL: http://svn.freebsd.org/changeset/base/209226
Log:
Eliminate unnecessary page queues locking.
Modified:
head/sys/fs/tmpfs/tmpfs_vnops.c
Modified: head/sys/fs/tmpfs/tmpfs_vnops.c
==============================================================================
--- head/sys/fs/tmpfs/tmpfs_vnops.c Tue Jun 15 23:55:42 2010
(r209225)
+++ head/sys/fs/tmpfs/tmpfs_vnops.c Wed Jun 16 00:41:21 2010
(r209226)
@@ -653,9 +653,7 @@ lookupvpg:
goto lookupvpg;
}
vm_page_busy(vpg);
- vm_page_lock_queues();
vm_page_undirty(vpg);
- vm_page_unlock_queues();
VM_OBJECT_UNLOCK(vobj);
error = uiomove_fromphys(&vpg, offset, tlen, uio);
} else {
@@ -690,15 +688,13 @@ nocache:
out:
if (vobj != NULL)
VM_OBJECT_LOCK(vobj);
- vm_page_lock(tpg);
- vm_page_lock_queues();
if (error == 0) {
KASSERT(tpg->valid == VM_PAGE_BITS_ALL,
("parts of tpg invalid"));
vm_page_dirty(tpg);
}
+ vm_page_lock(tpg);
vm_page_unwire(tpg, TRUE);
- vm_page_unlock_queues();
vm_page_unlock(tpg);
vm_page_wakeup(tpg);
if (vpg != NULL)
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