diff options
| 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/stack.go | |
| parent | 2566e21f243387156e8e7f2acad0ce14d9712bbc (diff) | |
| download | go-383b447e0da5bd1fcdc2439230b5a1d3e3402117.tar.xz | |
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/stack.go')
| -rw-r--r-- | src/runtime/stack.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/stack.go b/src/runtime/stack.go index 463f3bf3fd..68b24432a4 100644 --- a/src/runtime/stack.go +++ b/src/runtime/stack.go @@ -337,7 +337,7 @@ func stackalloc(n uint32) stack { } if debug.efence != 0 || stackFromSystem != 0 { - n = uint32(round(uintptr(n), physPageSize)) + n = uint32(alignUp(uintptr(n), physPageSize)) v := sysAlloc(uintptr(n), &memstats.stacks_sys) if v == nil { throw("out of memory (stackalloc)") |