svn commit: r206827 - user/kmacy/head_page_lock_2/sys/dev/cxgb/ulp/tom

Kip Macy kmacy at FreeBSD.org
Mon Apr 19 04:22:45 UTC 2010


Author: kmacy
Date: Mon Apr 19 04:22:45 2010
New Revision: 206827
URL: http://svn.freebsd.org/changeset/base/206827

Log:
  update cxgb_vm for page lock

Modified:
  user/kmacy/head_page_lock_2/sys/dev/cxgb/ulp/tom/cxgb_vm.c

Modified: user/kmacy/head_page_lock_2/sys/dev/cxgb/ulp/tom/cxgb_vm.c
==============================================================================
--- user/kmacy/head_page_lock_2/sys/dev/cxgb/ulp/tom/cxgb_vm.c	Mon Apr 19 04:09:20 2010	(r206826)
+++ user/kmacy/head_page_lock_2/sys/dev/cxgb/ulp/tom/cxgb_vm.c	Mon Apr 19 04:22:45 2010	(r206827)
@@ -90,7 +90,6 @@ vm_fault_hold_user_pages(vm_map_t map, v
 	 * (and R/W if for write) if so just mark pages as held (and 
 	 * dirty if for write) and return
 	 */
-	vm_page_lock_queues();
 	for (pages = mp, faults = 0, va = addr; va < end;
 	     va += PAGE_SIZE, pages++) {
 		/*
@@ -114,7 +113,6 @@ vm_fault_hold_user_pages(vm_map_t map, v
 			vm_page_dirty(m);
 		
 	}
-	vm_page_unlock_queues();
 	
 	if (faults == 0)
 		return (0);
@@ -141,13 +139,13 @@ vm_fault_hold_user_pages(vm_map_t map, v
 error:	
 	log(LOG_WARNING,
 	    "vm_fault bad return rv=%d va=0x%zx\n", rv, va);
-	vm_page_lock_queues();
 	for (pages = mp, va = addr; va < end; va += PAGE_SIZE, pages++)
 		if (*pages) {
+			vm_page_lock(*pages);
 			vm_page_unhold(*pages);
+			vm_page_unlock(*pages);
 			*pages = NULL;
 		}
-	vm_page_unlock_queues();
 	return (EFAULT);
 }
 
@@ -156,10 +154,10 @@ vm_fault_unhold_pages(vm_page_t *mp, int
 {
 
 	KASSERT(count >= 0, ("negative count %d", count));
-	vm_page_lock_queues();
 	while (count--) {
+		vm_page_lock(*mp);
 		vm_page_unhold(*mp);
+		vm_page_unlock(*mp);
 		mp++;
 	}
-	vm_page_unlock_queues();
 }


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