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runtime: use max/min func

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Change-Id: I3f0b7209621b39cee69566a5cc95e4343b4f1f20
GitHub-Last-Rev: af9dbbe69a
GitHub-Pull-Request: golang/go#63321
Reviewed-on: https://go-review.googlesource.com/c/go/+/531916
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
qiulaidongfeng 2023-10-10 12:43:40 +00:00 • committed by Keith Randall
parent 9ab5121691
commit b5f87b5407
10 changed files with 39 additions and 68 deletions
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13
src/runtime/mpagealloc.go
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@ -1038,8 +1038,8 @@ func mergeSummaries(sums []pallocSum, logMaxPagesPerSum uint) pallocSum {
// Merge the summaries in sums into one.
//
// We do this by keeping a running summary representing the merged
// summaries of sums[:i] in start, max, and end.
start, max, end := sums[0].unpack()
// summaries of sums[:i] in start, most, and end.
start, most, end := sums[0].unpack()
for i := 1; i < len(sums); i++ {
// Merge in sums[i].
si, mi, ei := sums[i].unpack()
@ -1055,12 +1055,7 @@ func mergeSummaries(sums []pallocSum, logMaxPagesPerSum uint) pallocSum {
// across the boundary between the running sum and sums[i]
// and at the max sums[i], taking the greatest of those two
// and the max of the running sum.
if end+si > max {
max = end + si
}
if mi > max {
max = mi
}
most = max(most, end+si, mi)
// Merge in end by checking if this new summary is totally
// free. If it is, then we want to extend the running sum's
@ -1073,5 +1068,5 @@ func mergeSummaries(sums []pallocSum, logMaxPagesPerSum uint) pallocSum {
end = ei
}
}
return packPallocSum(start, max, end)
return packPallocSum(start, most, end)
}