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runtime: move a few atomic fields up

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Moving them up makes them properly aligned on 32-bit systems.
There are some odd fields above them right now
(like fixalloc and mutex maybe).

Change-Id: I57851a5bbb2e7cc339712f004f99bb6c0cce0ca5
Reviewed-on: https://go-review.googlesource.com/9889
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Russ Cox 2015-05-11 12:03:30 -04:00
parent fc595b78d2
commit 363fd1dd1b
1 changed files with 9 additions and 9 deletions
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18
src/runtime/mheap.go
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@ -28,6 +28,15 @@ type mheap struct {
spans **mspan
spans_mapped uintptr
// Proportional sweep
pagesSwept uint64 // pages swept this cycle; updated atomically
sweepPagesPerByte float64 // proportional sweep ratio; written with lock, read without
// Malloc stats.
largefree uint64 // bytes freed for large objects (>maxsmallsize)
nlargefree uint64 // number of frees for large objects (>maxsmallsize)
nsmallfree [_NumSizeClasses]uint64 // number of frees for small objects (<=maxsmallsize)
// range of addresses we might see in the heap
bitmap uintptr
bitmap_mapped uintptr
@ -50,15 +59,6 @@ type mheap struct {
specialfinalizeralloc fixalloc // allocator for specialfinalizer*
specialprofilealloc fixalloc // allocator for specialprofile*
speciallock mutex // lock for sepcial record allocators.
// Proportional sweep
pagesSwept uint64 // pages swept this cycle; updated atomically
sweepPagesPerByte float64 // proportional sweep ratio; written with lock, read without
// Malloc stats.
largefree uint64 // bytes freed for large objects (>maxsmallsize)
nlargefree uint64 // number of frees for large objects (>maxsmallsize)
nsmallfree [_NumSizeClasses]uint64 // number of frees for small objects (<=maxsmallsize)
}
var mheap_ mheap