1 files changed, 0 insertions, 91 deletions
diff --git a/src/runtime/mgc0.go b/src/runtime/mgc0.go
deleted file mode 100644
index f54d93377d..0000000000
--- a/src/runtime/mgc0.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package runtime
-
-import _ "unsafe" // for go:linkname
-
-//go:linkname runtime_debug_freeOSMemory runtime/debug.freeOSMemory
-func runtime_debug_freeOSMemory() {
-	gogc(2) // force GC and do eager sweep
-	systemstack(scavenge_m)
-}
-
-var poolcleanup func()
-
-//go:linkname sync_runtime_registerPoolCleanup sync.runtime_registerPoolCleanup
-func sync_runtime_registerPoolCleanup(f func()) {
-	poolcleanup = f
-}
-
-func clearpools() {
-	// clear sync.Pools
-	if poolcleanup != nil {
-		poolcleanup()
-	}
-
-	for _, p := range &allp {
-		if p == nil {
-			break
-		}
-		// clear tinyalloc pool
-		if c := p.mcache; c != nil {
-			c.tiny = nil
-			c.tinyoffset = 0
-
-			// disconnect cached list before dropping it on the floor,
-			// so that a dangling ref to one entry does not pin all of them.
-			var sg, sgnext *sudog
-			for sg = c.sudogcache; sg != nil; sg = sgnext {
-				sgnext = sg.next
-				sg.next = nil
-			}
-			c.sudogcache = nil
-		}
-
-		// clear defer pools
-		for i := range p.deferpool {
-			// disconnect cached list before dropping it on the floor,
-			// so that a dangling ref to one entry does not pin all of them.
-			var d, dlink *_defer
-			for d = p.deferpool[i]; d != nil; d = dlink {
-				dlink = d.link
-				d.link = nil
-			}
-			p.deferpool[i] = nil
-		}
-	}
-}
-
-// backgroundgc is running in a goroutine and does the concurrent GC work.
-// bggc holds the state of the backgroundgc.
-func backgroundgc() {
-	bggc.g = getg()
-	for {
-		gcwork(0)
-		lock(&bggc.lock)
-		bggc.working = 0
-		goparkunlock(&bggc.lock, "Concurrent GC wait", traceEvGoBlock)
-	}
-}
-
-func bgsweep() {
-	sweep.g = getg()
-	for {
-		for gosweepone() != ^uintptr(0) {
-			sweep.nbgsweep++
-			Gosched()
-		}
-		lock(&gclock)
-		if !gosweepdone() {
-			// This can happen if a GC runs between
-			// gosweepone returning ^0 above
-			// and the lock being acquired.
-			unlock(&gclock)
-			continue
-		}
-		sweep.parked = true
-		goparkunlock(&gclock, "GC sweep wait", traceEvGoBlock)
-	}
-}