diff options
| author | attilio <attilio@FreeBSD.org> | 2012-04-09 17:05:18 +0000 |
|---|---|---|
| committer | attilio <attilio@FreeBSD.org> | 2012-04-09 17:05:18 +0000 |
| commit | 628004ddfb14301b6958eff7fd70dc889f1b6f5e (patch) | |
| tree | 8aac67e7dc8be50da7ef586592b2086e9064bbc7 /sys/vm/vm_page.c | |
| parent | b5a7a06de171e39df8cc4e199c50fe0697127894 (diff) | |
| download | FreeBSD-src-628004ddfb14301b6958eff7fd70dc889f1b6f5e.zip FreeBSD-src-628004ddfb14301b6958eff7fd70dc889f1b6f5e.tar.gz | |
- Introduce a cache-miss optimization for consistency with other
accesses of the cache member of vm_object objects.
- Use novel vm_page_is_cached() for checks outside of the vm subsystem.
Reviewed by: alc
MFC after: 2 weeks
X-MFC: r234039
Diffstat (limited to 'sys/vm/vm_page.c')
| -rw-r--r-- | sys/vm/vm_page.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index 565ac99..65bb701 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -1303,7 +1303,7 @@ vm_page_is_cached(vm_object_t object, vm_pindex_t pindex) * exist. */ VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); - if (object->cache == NULL) + if (__predict_true(object->cache == NULL)) return (FALSE); mtx_lock(&vm_page_queue_free_mtx); m = vm_page_cache_lookup(object, pindex); |
