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| author | Michael Anthony Knyszek <mknyszek@google.com> | 2019-06-28 16:44:07 +0000 |
|---|---|---|
| committer | Michael Knyszek <mknyszek@google.com> | 2019-11-04 23:41:34 +0000 |
| commit | 383b447e0da5bd1fcdc2439230b5a1d3e3402117 (patch) | |
| tree | c1dafd5c18d1d2ddc09d51dc6892087e3f506411 /src/runtime/race.go | |
| parent | 2566e21f243387156e8e7f2acad0ce14d9712bbc (diff) | |
| download | go-383b447e0da5bd1fcdc2439230b5a1d3e3402117.tar.gz go-383b447e0da5bd1fcdc2439230b5a1d3e3402117.zip | |
runtime: clean up power-of-two rounding code with align functions
This change renames the "round" function to the more appropriately named
"alignUp" which rounds an integer up to the next multiple of a power of
two.
This change also adds the alignDown function, which is almost like
alignUp but rounds down to the previous multiple of a power of two.
With these two functions, we also go and replace manual rounding code
with it where we can.
Change-Id: Ie1487366280484dcb2662972b01b4f7135f72fec
Reviewed-on: https://go-review.googlesource.com/c/go/+/190618
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/runtime/race.go')
| -rw-r--r-- | src/runtime/race.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/race.go b/src/runtime/race.go index d11dc9b5bf..52c9bd8201 100644 --- a/src/runtime/race.go +++ b/src/runtime/race.go @@ -385,7 +385,7 @@ func raceinit() (gctx, pctx uintptr) { if end < firstmoduledata.ebss { end = firstmoduledata.ebss } - size := round(end-start, _PageSize) + size := alignUp(end-start, _PageSize) racecall(&__tsan_map_shadow, start, size, 0, 0) racedatastart = start racedataend = start + size |