diff options
| author | alc <alc@FreeBSD.org> | 2010-12-25 21:26:56 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2010-12-25 21:26:56 +0000 |
| commit | 971b02b7bcce9c49f919797dcad7b646c206b7b6 (patch) | |
| tree | 069da87e128b6f0f35be7629bb29fa3f3c2db97e /sys/net/bpf_zerocopy.c | |
| parent | 8e6dc31ba726f1333c1f0a995641a8d976ea3b4b (diff) | |
| download | FreeBSD-src-971b02b7bcce9c49f919797dcad7b646c206b7b6.zip FreeBSD-src-971b02b7bcce9c49f919797dcad7b646c206b7b6.tar.gz | |
Introduce and use a new VM interface for temporarily pinning pages. This
new interface replaces the combined use of vm_fault_quick() and
pmap_extract_and_hold() throughout the kernel.
In collaboration with: kib@
Diffstat (limited to 'sys/net/bpf_zerocopy.c')
| -rw-r--r-- | sys/net/bpf_zerocopy.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/sys/net/bpf_zerocopy.c b/sys/net/bpf_zerocopy.c index 91efd64..7a3e6cd 100644 --- a/sys/net/bpf_zerocopy.c +++ b/sys/net/bpf_zerocopy.c @@ -161,12 +161,8 @@ zbuf_sfbuf_get(struct vm_map *map, vm_offset_t uaddr) struct sf_buf *sf; vm_page_t pp; - if (vm_fault_quick((caddr_t) uaddr, VM_PROT_READ | VM_PROT_WRITE) < - 0) - return (NULL); - pp = pmap_extract_and_hold(map->pmap, uaddr, VM_PROT_READ | - VM_PROT_WRITE); - if (pp == NULL) + if (vm_fault_quick_hold_pages(map, uaddr, PAGE_SIZE, VM_PROT_READ | + VM_PROT_WRITE, &pp, 1) < 0) return (NULL); vm_page_lock(pp); vm_page_wire(pp); |
