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runtime: apply comments from CL 3742

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I asked for this in CL 3742 and it was ignored.

Change-Id: I30ad05f87c7d9eccb11df7e19288e3ed2c7e2e3f
Reviewed-on: https://go-review.googlesource.com/6930
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
This commit is contained in:
Russ Cox 2015-03-05 09:52:41 -05:00
parent 12079acaa0
commit 84f53339be
2 changed files with 16 additions and 16 deletions
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16
src/runtime/panic.go
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@ -176,10 +176,10 @@ func newdefer(siz int32) *_defer {
}
unlock(&sched.deferlock)
}
if ln := len(pp.deferpool[sc]); ln > 0 {
d = pp.deferpool[sc][ln-1]
pp.deferpool[sc][ln-1] = nil
pp.deferpool[sc] = pp.deferpool[sc][:ln-1]
if n := len(pp.deferpool[sc]); n > 0 {
d = pp.deferpool[sc][n-1]
pp.deferpool[sc][n-1] = nil
pp.deferpool[sc] = pp.deferpool[sc][:n-1]
}
}
if d == nil {
@ -228,10 +228,10 @@ func freedefer(d *_defer) {
// Transfer half of local cache to the central cache.
var first, last *_defer
for len(pp.deferpool[sc]) > cap(pp.deferpool[sc])/2 {
ln := len(pp.deferpool[sc])
d := pp.deferpool[sc][ln-1]
pp.deferpool[sc][ln-1] = nil
pp.deferpool[sc] = pp.deferpool[sc][:ln-1]
n := len(pp.deferpool[sc])
d := pp.deferpool[sc][n-1]
pp.deferpool[sc][n-1] = nil
pp.deferpool[sc] = pp.deferpool[sc][:n-1]
if first == nil {
first = d
} else {