code: mafs

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bug in remove when the file size is exactly Ddatasize

--- a/9p.c

+++ b/9p.c

@@ -1316,7 +1316,7 @@

 	if(offset >= filesize)

 		goto readend;

-	if(filesize < Ddatasize){

+	if(filesize <= Ddatasize){

 		n = min(filesize-offset, rbufsize);

 		memcpy(rbuf, d->buf+offset, n);

 		sent = n;

--- a/dentry.c

+++ b/dentry.c

@@ -323,7 +323,7 @@

 	}

 	putbuf(dbuf, 1);

-	if(size < Ddatasize)

+	if(size <= Ddatasize)

 		return;

 	lastreli = d.size/Maxdatablocksize;

--- a/updatefrees.c

+++ b/updatefrees.c

@@ -94,7 +94,7 @@

 		print("changed size: %llud to %d\n", d->size, nfreesize);

 	memset(d->buf, 0, Ddatasize);

 	d->size = nfreesize;

-	if(nfreesize < Ddatasize){

+	if(nfreesize <= Ddatasize){

 		strncpy(d->buf, (s8*)f->buf, nfreesize);

 		devwrite(Bdfrees, buf, Metadataunits);

 	}else{