diff options
author | jeff <jeff@FreeBSD.org> | 2007-05-18 07:10:50 +0000 |
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committer | jeff <jeff@FreeBSD.org> | 2007-05-18 07:10:50 +0000 |
commit | e1996cb9609d2e55a26ee78dddbfce4ba4073b53 (patch) | |
tree | c94b660d4b9246fed8cbeadf7851932258d8b72a /sys/vm/vm_zeroidle.c | |
parent | beb495eff1db0646624feb7071ced7f632ff8869 (diff) | |
download | FreeBSD-src-e1996cb9609d2e55a26ee78dddbfce4ba4073b53.zip FreeBSD-src-e1996cb9609d2e55a26ee78dddbfce4ba4073b53.tar.gz |
- define and use VMCNT_{GET,SET,ADD,SUB,PTR} macros for manipulating
vmcnts. This can be used to abstract away pcpu details but also changes
to use atomics for all counters now. This means sched lock is no longer
responsible for protecting counts in the switch routines.
Contributed by: Attilio Rao <attilio@FreeBSD.org>
Diffstat (limited to 'sys/vm/vm_zeroidle.c')
-rw-r--r-- | sys/vm/vm_zeroidle.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/vm/vm_zeroidle.c b/sys/vm/vm_zeroidle.c index 5af84e0..29144ed 100644 --- a/sys/vm/vm_zeroidle.c +++ b/sys/vm/vm_zeroidle.c @@ -90,9 +90,10 @@ vm_page_zero_check(void) * fast sleeps. We also do not want to be continuously zeroing * pages because doing so may flush our L1 and L2 caches too much. */ - if (zero_state && vm_page_zero_count >= ZIDLE_LO(cnt.v_free_count)) + if (zero_state && vm_page_zero_count >= + ZIDLE_LO(VMCNT_GET(free_count))) return (0); - if (vm_page_zero_count >= ZIDLE_HI(cnt.v_free_count)) + if (vm_page_zero_count >= ZIDLE_HI(VMCNT_GET(free_count))) return (0); return (1); } @@ -115,7 +116,7 @@ vm_page_zero_idle(void) vm_pageq_enqueue(PQ_FREE + m->pc, m); ++vm_page_zero_count; ++cnt_prezero; - if (vm_page_zero_count >= ZIDLE_HI(cnt.v_free_count)) + if (vm_page_zero_count >= ZIDLE_HI(VMCNT_GET(free_count))) zero_state = 1; } free_rover = (free_rover + PQ_PRIME2) & PQ_COLORMASK; |