Rename pass4check() to freeblock() and move from pass4.c to inode.c.

The new name more accurately describes what it does and the file move
puts it with other similar functions. Done in preparation for future
cleanups. No functional differences intended.

Sponsored by: Netflix
Historic Footnote: my last FreeBSD svn commit

sbin/fsck_ffs/dir.c

@@ -532,7 +532,7 @@ linkup(ino_t orphan, ino_t parentdir, char *name)
 		}
 		inodirty(dp);
 		idesc.id_type = ADDR;
-		idesc.id_func = pass4check;
+		idesc.id_func = freeblock;
 		idesc.id_number = oldlfdir;
 		adjust(&idesc, inoinfo(oldlfdir)->ino_linkcnt + 1);
 		inoinfo(oldlfdir)->ino_linkcnt = 0;
@@ -635,6 +635,7 @@ expanddir(union dinode *dp, char *name)
 {
 	ufs2_daddr_t lastbn, newblk;
 	struct bufarea *bp;
+	struct inodesc idesc;
 	char *cp, firstblk[DIRBLKSIZ];
 
 	lastbn = lblkno(&sblock, DIP(dp, di_size));
@@ -679,7 +680,10 @@ expanddir(union dinode *dp, char *name)
 	DIP_SET(dp, di_db[lastbn + 1], 0);
 	DIP_SET(dp, di_size, DIP(dp, di_size) - sblock.fs_bsize);
 	DIP_SET(dp, di_blocks, DIP(dp, di_blocks) - btodb(sblock.fs_bsize));
-	freeblk(newblk, sblock.fs_frag);
+	/* Free the block we allocated above */
+	idesc.id_blkno = newblk;
+	idesc.id_numfrags = sblock.fs_frag;
+	(void)freeblock(&idesc);
 	return (0);
 }
 

sbin/fsck_ffs/fsck.h

@@ -438,7 +438,7 @@ void		finalIOstats(void);
 int		findino(struct inodesc *);
 int		findname(struct inodesc *);
 void		flush(int fd, struct bufarea *bp);
-void		freeblk(ufs2_daddr_t blkno, long frags);
+int		freeblock(struct inodesc *);
 void		freeino(ino_t ino);
 void		freeinodebuf(void);
 void		fsutilinit(void);
@@ -465,7 +465,6 @@ int		pass1check(struct inodesc *);
 void		pass2(void);
 void		pass3(void);
 void		pass4(void);
-int		pass4check(struct inodesc *);
 void		pass5(void);
 void		pfatal(const char *fmt, ...) __printflike(1, 2);
 void		propagate(void);

sbin/fsck_ffs/fsutil.c

@@ -800,20 +800,9 @@ allocblk(long frags)
 }
 
 /*
- * Free a previously allocated block
+ * Slow down IO so as to leave some disk bandwidth for other processes
  */
 void
-freeblk(ufs2_daddr_t blkno, long frags)
-{
-	struct inodesc idesc;
-
-	idesc.id_blkno = blkno;
-	idesc.id_numfrags = frags;
-	(void)pass4check(&idesc);
-}
-
-/* Slow down IO so as to leave some disk bandwidth for other processes */
-void
 slowio_start()
 {
 

sbin/fsck_ffs/inode.c

@@ -641,6 +641,37 @@ clearentry(struct inodesc *idesc)
 	return (STOP|FOUND|ALTERED);
 }
 
+int
+freeblock(struct inodesc *idesc)
+{
+	struct dups *dlp;
+	ufs2_daddr_t blkno;
+	long nfrags, res;
+
+	res = KEEPON;
+	blkno = idesc->id_blkno;
+	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
+		if (chkrange(blkno, 1)) {
+			res = SKIP;
+		} else if (testbmap(blkno)) {
+			for (dlp = duplist; dlp; dlp = dlp->next) {
+				if (dlp->dup != blkno)
+					continue;
+				dlp->dup = duplist->dup;
+				dlp = duplist;
+				duplist = duplist->next;
+				free((char *)dlp);
+				break;
+			}
+			if (dlp == NULL) {
+				clrbmap(blkno);
+				n_blks--;
+			}
+		}
+	}
+	return (res);
+}
+
 void
 prtinode(ino_t ino, union dinode *dp)
 {
@@ -767,7 +798,7 @@ freeino(ino_t ino)
 
 	memset(&idesc, 0, sizeof(struct inodesc));
 	idesc.id_type = ADDR;
-	idesc.id_func = pass4check;
+	idesc.id_func = freeblock;
 	idesc.id_number = ino;
 	dp = ginode(ino);
 	(void)ckinode(dp, &idesc);

sbin/fsck_ffs/pass4.c

@@ -58,7 +58,7 @@ pass4(void)
 
 	memset(&idesc, 0, sizeof(struct inodesc));
 	idesc.id_type = ADDR;
-	idesc.id_func = pass4check;
+	idesc.id_func = freeblock;
 	for (cg = 0; cg < sblock.fs_ncg; cg++) {
 		if (got_siginfo) {
 			printf("%s: phase 4: cyl group %d of %d (%d%%)\n",
@@ -124,32 +124,3 @@ pass4(void)
 		}
 	}
 }
-
-int
-pass4check(struct inodesc *idesc)
-{
-	struct dups *dlp;
-	int nfrags, res = KEEPON;
-	ufs2_daddr_t blkno = idesc->id_blkno;
-
-	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
-		if (chkrange(blkno, 1)) {
-			res = SKIP;
-		} else if (testbmap(blkno)) {
-			for (dlp = duplist; dlp; dlp = dlp->next) {
-				if (dlp->dup != blkno)
-					continue;
-				dlp->dup = duplist->dup;
-				dlp = duplist;
-				duplist = duplist->next;
-				free((char *)dlp);
-				break;
-			}
-			if (dlp == NULL) {
-				clrbmap(blkno);
-				n_blks--;
-			}
-		}
-	}
-	return (res);
-}