diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-06-15 17:40:47 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-06-15 17:40:47 +0200 |
| commit | 64ed3658d2abe3829f0619e8243c60edcc1d3815 (patch) | |
| tree | b90884b17338d65dca57d86924fb01462734f461 /sys/src/9/port/page.c | |
| parent | bce2696b17f4891e819958ed9e8f1adf8bdd97dc (diff) | |
kernel: add pagechaindone() to wakeup processes waiting for memory
we keep the details about palloc in page.c, providing pagechaindone()
for mmu code to be called after a series of pagechainhead() calls.
Diffstat (limited to 'sys/src/9/port/page.c')
| -rw-r--r-- | sys/src/9/port/page.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sys/src/9/port/page.c b/sys/src/9/port/page.c index 9da07b071..c16044512 100644 --- a/sys/src/9/port/page.c +++ b/sys/src/9/port/page.c @@ -71,6 +71,15 @@ pagechainhead(Page *p) palloc.freecount++; } +void +pagechaindone(void) +{ + if(palloc.pwait[0].p != nil && wakeup(&palloc.pwait[0]) != nil) + return; + if(palloc.pwait[1].p != nil) + wakeup(&palloc.pwait[1]); +} + static void freepages(Page *head, Page *tail, int n) { @@ -79,11 +88,7 @@ freepages(Page *head, Page *tail, int n) palloc.head = head; palloc.freecount += n; unlock(&palloc); - - if(palloc.pwait[0].p != nil && wakeup(&palloc.pwait[0]) != nil) - return; - if(palloc.pwait[1].p != nil) - wakeup(&palloc.pwait[1]); + pagechaindone(); } int |