diff options
| author | kmacy <kmacy@FreeBSD.org> | 2010-04-30 00:46:43 +0000 |
|---|---|---|
| committer | kmacy <kmacy@FreeBSD.org> | 2010-04-30 00:46:43 +0000 |
| commit | 1dc1263413262d13f45f42d89c554d0ddc167ca2 (patch) | |
| tree | 250705d42bcb9b364f4fd2233c38faaadadf7ae0 /sys/kern/subr_witness.c | |
| parent | a43425e8835983e7c93a15a2d6a42fdb292c1676 (diff) | |
| download | FreeBSD-src-1dc1263413262d13f45f42d89c554d0ddc167ca2.zip FreeBSD-src-1dc1263413262d13f45f42d89c554d0ddc167ca2.tar.gz | |
On Alan's advice, rather than do a wholesale conversion on a single
architecture from page queue lock to a hashed array of page locks
(based on a patch by Jeff Roberson), I've implemented page lock
support in the MI code and have only moved vm_page's hold_count
out from under page queue mutex to page lock. This changes
pmap_extract_and_hold on all pmaps.
Supported by: Bitgravity Inc.
Discussed with: alc, jeffr, and kib
Diffstat (limited to 'sys/kern/subr_witness.c')
| -rw-r--r-- | sys/kern/subr_witness.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c index 5b7d565..ef1bc39 100644 --- a/sys/kern/subr_witness.c +++ b/sys/kern/subr_witness.c @@ -597,6 +597,15 @@ static struct witness_order_list_entry order_lists[] = { { "cdev", &lock_class_mtx_sleep }, { NULL, NULL }, /* + * VM + * + */ + { "vm object", &lock_class_mtx_sleep }, + { "page lock", &lock_class_mtx_sleep }, + { "vm page queue mutex", &lock_class_mtx_sleep }, + { "pmap", &lock_class_mtx_sleep }, + { NULL, NULL }, + /* * kqueue/VFS interaction */ { "kqueue", &lock_class_mtx_sleep }, |
