| commit | 9e6f7aac28a33f805692e2c1b498fdbc576f853d | [log] [tgz] |
|---|---|---|
| author | Austin Clements <austin@google.com> | Sun Mar 29 10:20:54 2015 -0400 |
| committer | Austin Clements <austin@google.com> | Mon Mar 30 15:13:53 2015 +0000 |
| tree | 8276e68acc3e785810adb63ae55f6afab1cb8e9a | |
| parent | fa3ad1ebb582b96d1eda471c68ea250561db28b1 [diff] |
runtime: make "write barriers are not allowed" comments more precise Currently, various functions are marked with the comment // May run without a P, so write barriers are not allowed. However, "running without a P" is ambiguous. We intended these to mean that m.p may be nil (which is the condition checked by the write barrier). The comment could also be taken to mean that a stop-the-world may happen, which is not the case for these functions because they run in situations where there is in fact a function on the stack holding a P locally, it just isn't in m.p. Change these comments to state precisely what we mean, that m.p may be nil. Change-Id: I4a4a1d26aebd455e5067540e13b9f96a7482146c Reviewed-on: https://go-review.googlesource.com/8209 Reviewed-by: Minux Ma <minux@golang.org> Reviewed-by: Rick Hudson <rlh@golang.org>
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