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| author | Rhys Hiltner <rhys.hiltner@gmail.com> | 2024-05-13 12:23:58 -0700 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-05-21 17:17:24 +0000 |
| commit | be0b569caa0eab1a7f30edf64e550bbf5f6ff235 (patch) | |
| tree | 5a64e37f8e0b3314666430823e3fa32d615e31fa /src/runtime/runtime2.go | |
| parent | d68d485405d8e604921e6d63ed32ae344fd3049e (diff) | |
| download | go-be0b569caa0eab1a7f30edf64e550bbf5f6ff235.tar.xz | |
runtime: prepare for extensions to waiting M list
Move the nextwaitm field into a small struct, in preparation for
additional metadata to track how long Ms need to wait for locks.
For #66999
Change-Id: Ib40e43c15cde22f7e35922641107973d99439ecd
Reviewed-on: https://go-review.googlesource.com/c/go/+/585635
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Diffstat (limited to 'src/runtime/runtime2.go')
| -rw-r--r-- | src/runtime/runtime2.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go index ff11414e3e..470b829912 100644 --- a/src/runtime/runtime2.go +++ b/src/runtime/runtime2.go @@ -596,8 +596,8 @@ type m struct { createstack [32]uintptr // stack that created this thread, it's used for StackRecord.Stack0, so it must align with it. lockedExt uint32 // tracking for external LockOSThread lockedInt uint32 // tracking for internal lockOSThread - nextwaitm muintptr // next m waiting for lock + mWaitList mWaitList // list of runtime lock waiters mLockProfile mLockProfile // fields relating to runtime.lock contention profStack []uintptr // used for memory/block/mutex stack traces |