diff options
Diffstat (limited to 'libgo/go/runtime/mpagecache.go')
| -rw-r--r-- | libgo/go/runtime/mpagecache.go | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/libgo/go/runtime/mpagecache.go b/libgo/go/runtime/mpagecache.go index 4b5c66d..7206e2d 100644 --- a/libgo/go/runtime/mpagecache.go +++ b/libgo/go/runtime/mpagecache.go @@ -123,9 +123,10 @@ func (p *pageAlloc) allocToCache() pageCache { } c := pageCache{} ci := chunkIndex(p.searchAddr.addr()) // chunk index + var chunk *pallocData if p.summary[len(p.summary)-1][ci] != 0 { // Fast path: there's free pages at or near the searchAddr address. - chunk := p.chunkOf(ci) + chunk = p.chunkOf(ci) j, _ := chunk.find(1, chunkPageIndex(p.searchAddr.addr())) if j == ^uint(0) { throw("bad summary data") @@ -146,7 +147,7 @@ func (p *pageAlloc) allocToCache() pageCache { return pageCache{} } ci := chunkIndex(addr) - chunk := p.chunkOf(ci) + chunk = p.chunkOf(ci) c = pageCache{ base: alignDown(addr, 64*pageSize), cache: ^chunk.pages64(chunkPageIndex(addr)), @@ -154,8 +155,11 @@ func (p *pageAlloc) allocToCache() pageCache { } } - // Set the bits as allocated and clear the scavenged bits. - p.allocRange(c.base, pageCachePages) + // Set the page bits as allocated and clear the scavenged bits, but + // be careful to only set and clear the relevant bits. + cpi := chunkPageIndex(c.base) + chunk.allocPages64(cpi, c.cache) + chunk.scavenged.clearBlock64(cpi, c.cache&c.scav /* free and scavenged */) // Update as an allocation, but note that it's not contiguous. p.update(c.base, pageCachePages, false, true) |