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author | kmacy <kmacy@FreeBSD.org> | 2010-04-30 00:46:43 +0000 |
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committer | kmacy <kmacy@FreeBSD.org> | 2010-04-30 00:46:43 +0000 |
commit | 1dc1263413262d13f45f42d89c554d0ddc167ca2 (patch) | |
tree | 250705d42bcb9b364f4fd2233c38faaadadf7ae0 /sys/kern/kern_exec.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/kern_exec.c')
-rw-r--r-- | sys/kern/kern_exec.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index ed22519..bb92972 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -957,9 +957,9 @@ exec_map_first_page(imgp) return (EIO); } } - vm_page_lock_queues(); + vm_page_lock(ma[0]); vm_page_hold(ma[0]); - vm_page_unlock_queues(); + vm_page_unlock(ma[0]); vm_page_wakeup(ma[0]); VM_OBJECT_UNLOCK(object); @@ -979,9 +979,9 @@ exec_unmap_first_page(imgp) m = sf_buf_page(imgp->firstpage); sf_buf_free(imgp->firstpage); imgp->firstpage = NULL; - vm_page_lock_queues(); + vm_page_lock(m); vm_page_unhold(m); - vm_page_unlock_queues(); + vm_page_unlock(m); } } |