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| author | alc <alc@FreeBSD.org> | 2012-06-28 22:03:59 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2012-06-28 22:03:59 +0000 |
| commit | 44ab6b30531a8884c2b22b9cc6a4e489690bf27b (patch) | |
| tree | 593444bf0b71be94e240ca5fb4af4894f8cee5da /sys/amd64 | |
| parent | da17d879d75861ec67ee41b1353de484de57ec28 (diff) | |
| download | FreeBSD-src-44ab6b30531a8884c2b22b9cc6a4e489690bf27b.zip FreeBSD-src-44ab6b30531a8884c2b22b9cc6a4e489690bf27b.tar.gz | |
Avoid some unnecessary PV list locking in pmap_enter().
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index fff27dc..16eeb95 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -3570,7 +3570,7 @@ validate: if ((newpte & PG_RW) == 0) invlva = TRUE; } - if ((origpte & PG_MANAGED) != 0) { + if ((om->aflags & PGA_WRITEABLE) != 0) { CHANGE_PV_LIST_LOCK_TO_VM_PAGE(&lock, om); if (TAILQ_EMPTY(&om->md.pv_list) && ((om->flags & PG_FICTITIOUS) != 0 || |
