diff options
Diffstat (limited to 'src/runtime/mpallocbits.go')
| -rw-r--r-- | src/runtime/mpallocbits.go | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/src/runtime/mpallocbits.go b/src/runtime/mpallocbits.go index 9d01ff8e2f..a8011341bc 100644 --- a/src/runtime/mpallocbits.go +++ b/src/runtime/mpallocbits.go @@ -202,17 +202,11 @@ func (b *pallocBits) summarize() pallocSum { // If find fails to find any free space, it returns an index of ^uint(0) and // the new searchIdx should be ignored. // -// The returned searchIdx is always the index of the first free page found -// in this bitmap during the search, except if npages == 1, in which -// case it will be the index just after the first free page, because the -// index returned as the first result is assumed to be allocated and so -// represents a minor optimization for that case. +// Note that if npages == 1, the two returned values will always be identical. func (b *pallocBits) find(npages uintptr, searchIdx uint) (uint, uint) { if npages == 1 { addr := b.find1(searchIdx) - // Return a searchIdx of addr + 1 since we assume addr will be - // allocated. - return addr, addr + 1 + return addr, addr } else if npages <= 64 { return b.findSmallN(npages, searchIdx) } |