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devip: make Fs *ipfs[] and Queue *qlog static

These variables do not need to be exported. Make them static.

--- a/sys/src/9/ip/devip.c

+++ b/sys/src/9/ip/devip.c

@@ -53,9 +53,8 @@

 static char network[] = "network";

-QLock	fslock;

-Fs	*ipfs[Nfs];	/* attached fs's */

-Queue	*qlog;

+static Fs	*ipfs[Nfs];	/* attached fs's */

+static Queue	*qlog;

 extern	void nullmediumlink(void);

 extern	void pktmediumlink(void);

@@ -290,6 +289,7 @@

 static Chan*

 ipattach(char* spec)

 {

+	static QLock lk;

 	Chan *c;

 	ulong dev;

@@ -297,7 +297,7 @@

 	if(dev >= Nfs)

 		error(Enodev);

-	qlock(&fslock);

+	qlock(&lk);

 	if(ipfs[dev] == nil){

 		extern void (*ipprotoinit[])(Fs*);

 		Fs *f;

@@ -310,9 +310,10 @@

 		for(i = 0; ipprotoinit[i]; i++)

 			ipprotoinit[i](f);

 		f->dev = dev;

+		coherence();

 		ipfs[dev] = f;

 	}

-	qunlock(&fslock);

+	qunlock(&lk);

 	c = devattach('I', spec);

 	mkqid(&c->qid, QID(0, 0, Qtopdir), 0, QTDIR);

-- 

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