diff options
| author | alc <alc@FreeBSD.org> | 2003-01-05 01:31:45 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2003-01-05 01:31:45 +0000 |
| commit | e9e799ad843693e3f3c1652d0ae0a7d302999fbf (patch) | |
| tree | 12ffec2c7b6a2bdada66325e011ad13e9af5fe2d /sys/vm/vm_page.c | |
| parent | 41e4abf4cc5c8ea394b16e090e3efbd4078cf53b (diff) | |
| download | FreeBSD-src-e9e799ad843693e3f3c1652d0ae0a7d302999fbf.zip FreeBSD-src-e9e799ad843693e3f3c1652d0ae0a7d302999fbf.tar.gz | |
Use atomic add and subtract to update the global wired page count,
cnt.v_wire_count.
Diffstat (limited to 'sys/vm/vm_page.c')
| -rw-r--r-- | sys/vm/vm_page.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index e7ffb47..bc34dc6 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -863,7 +863,7 @@ loop: m->flags = PG_BUSY; } if (req & VM_ALLOC_WIRED) { - cnt.v_wire_count++; + atomic_add_int(&cnt.v_wire_count, 1); m->wire_count = 1; } else m->wire_count = 0; @@ -1183,7 +1183,7 @@ vm_page_wire(vm_page_t m) if (m->wire_count == 0) { if ((m->flags & PG_UNMANAGED) == 0) vm_pageq_remove(m); - cnt.v_wire_count++; + atomic_add_int(&cnt.v_wire_count, 1); } m->wire_count++; KASSERT(m->wire_count != 0, ("vm_page_wire: wire_count overflow m=%p", m)); @@ -1228,7 +1228,7 @@ vm_page_unwire(vm_page_t m, int activate) if (m->wire_count > 0) { m->wire_count--; if (m->wire_count == 0) { - cnt.v_wire_count--; + atomic_subtract_int(&cnt.v_wire_count, 1); if (m->flags & PG_UNMANAGED) { ; } else if (activate) |
