diff options
| author | Bob Beck <beck@cvs.openbsd.org> | 2011-04-05 21:31:59 +0000 |
|---|---|---|
| committer | Bob Beck <beck@cvs.openbsd.org> | 2011-04-05 21:31:59 +0000 |
| commit | 9c6a1c4acfd9cca58f22273d12ecbe06f133329b (patch) | |
| tree | 48e636fb90317d71fefd26b4ce950246d9b8a735 /sys | |
| parent | 6e77b8380c3db497c799d8168d9f686409cd2643 (diff) | |
fix nasty buffer cache bug where we could forget about pages shrunk off of a
buffer as the result of bread_cluster.
ok art@ thib@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/vfs_biomem.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/kern/vfs_biomem.c b/sys/kern/vfs_biomem.c index 4d55308cbd1..17c5007441a 100644 --- a/sys/kern/vfs_biomem.c +++ b/sys/kern/vfs_biomem.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_biomem.c,v 1.15 2011/04/02 16:47:17 beck Exp $ */ +/* $OpenBSD: vfs_biomem.c,v 1.16 2011/04/05 21:31:58 beck Exp $ */ /* * Copyright (c) 2007 Artur Grabowski <art@openbsd.org> * @@ -231,6 +231,7 @@ buf_shrink_mem(struct buf *bp, vsize_t newsize) if (newsize < bp->b_bufsize) { pmap_kremove(va + newsize, bp->b_bufsize - newsize); pmap_update(pmap_kernel()); + bcstats.numbufpages -= atop(bp->b_bufsize - newsize); bp->b_bufsize = newsize; } } |