diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2020-05-10 16:54:42 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2020-05-10 16:54:42 +0200 |
| commit | dbfec06bf1f8de922ca3af09d14675ef44ada5d2 (patch) | |
| tree | 157e0375612556991e488cdc6cef84e202dc50ea /sys/src/9/port/fault.c | |
| parent | 0099db7b5b87adb72f1dfa69f893c41ab1c26d6e (diff) | |
kernel: fix checkpages() and segflush() on SG_PHYSICAL type segments
do not touch s->map on SG_PHYSICAL type segments as they do
not have a pte map (s->mapsize == 0 && s->map == nil).
also remove the SG_PHYSICAL switch in freepte(), this is never
reached.
Diffstat (limited to 'sys/src/9/port/fault.c')
| -rw-r--r-- | sys/src/9/port/fault.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/sys/src/9/port/fault.c b/sys/src/9/port/fault.c index 4b6e12f67..9e499b722 100644 --- a/sys/src/9/port/fault.c +++ b/sys/src/9/port/fault.c @@ -438,14 +438,16 @@ checkpages(void) if((s = *sp) == nil) continue; qlock(s); - for(addr=s->base; addr<s->top; addr+=BY2PG){ - off = addr - s->base; - if((p = s->map[off/PTEMAPMEM]) == nil) - continue; - pg = p->pages[(off&(PTEMAPMEM-1))/BY2PG]; - if(pagedout(pg)) - continue; - checkmmu(addr, pg->pa); + if(s->mapsize > 0){ + for(addr=s->base; addr<s->top; addr+=BY2PG){ + off = addr - s->base; + if((p = s->map[off/PTEMAPMEM]) == nil) + continue; + pg = p->pages[(off&(PTEMAPMEM-1))/BY2PG]; + if(pagedout(pg)) + continue; + checkmmu(addr, pg->pa); + } } qunlock(s); } |