In the case of a background fsck, periodically update the process title

with a progress update.

sbin/fsck_ffs/fsck.h

@@ -258,6 +258,7 @@ ufs2_daddr_t n_blks;		/* number of blocks in use */
 ino_t n_files;			/* number of files in use */
 
 int	got_siginfo;		/* received a SIGINFO */
+int	got_sigalarm;		/* received a SIGALRM */
 
 #define	clearinode(dp) \
 	if (sblock.fs_magic == FS_UFS1_MAGIC) { \
@@ -324,6 +325,7 @@ union dinode   *getnextinode(ino_t inumber);
 void		getpathname(char *namebuf, ino_t curdir, ino_t ino);
 union dinode   *ginode(ino_t inumber);
 void		infohandler(int sig);
+void		alarmhandler(int sig);
 void		inocleanup(void);
 void		inodirty(void);
 struct inostat *inoinfo(ino_t inum);

sbin/fsck_ffs/main.c

@@ -78,6 +78,7 @@ main(int argc, char *argv[])
 {
 	int ch;
 	struct rlimit rlimit;
+	struct itimerval itimerval;
 	int ret = 0;
 
 	sync();
@@ -150,6 +151,14 @@ main(int argc, char *argv[])
 	if (preen)
 		(void)signal(SIGQUIT, catchquit);
 	signal(SIGINFO, infohandler);
+	if (bkgrdflag) {
+		signal(SIGALRM, alarmhandler);
+		itimerval.it_interval.tv_sec = 5;
+		itimerval.it_interval.tv_usec = 0;
+		itimerval.it_value.tv_sec = 5;
+		itimerval.it_value.tv_usec = 0;
+		setitimer(ITIMER_REAL, &itimerval, NULL);
+	}
 	/*
 	 * Push up our allowed memory limit so we can cope
 	 * with huge file systems.

sbin/fsck_ffs/pass1.c

@@ -107,6 +107,11 @@ pass1(void)
 			    c * 100 / sblock.fs_ncg);
 			got_siginfo = 0;
 		}
+		if (got_sigalarm) {
+			setproctitle("%s p1 %d%%", cdevname,
+			     c * 100 / sblock.fs_ncg);
+			got_sigalarm = 0;
+		}
 		/*
 		 * If we are using soft updates, then we can trust the
 		 * cylinder group inode allocation maps to tell us which

sbin/fsck_ffs/pass1b.c

@@ -71,6 +71,11 @@ pass1b(void)
 			    c * 100 / sblock.fs_ncg);
 			got_siginfo = 0;
 		}
+		if (got_sigalarm) {
+			setproctitle("%s p1b %d%%", cdevname,
+			    c * 100 / sblock.fs_ncg);
+			got_siginfo = 0;
+		}
 		for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
 			if (inumber < ROOTINO)
 				continue;

sbin/fsck_ffs/pass2.c

@@ -140,6 +140,11 @@ pass2(void)
 			    (int)((inpp - inpsort) * 100 / inplast));
 			got_siginfo = 0;
 		}
+		if (got_sigalarm) {
+			setproctitle("%s p2 %d%%", cdevname,
+			    (int)((inpp - inpsort) * 100 / inplast));
+			got_sigalarm = 0;
+		}
 		inp = *inpp;
 		if (inp->i_isize == 0)
 			continue;

sbin/fsck_ffs/pass3.c

@@ -65,6 +65,11 @@ pass3(void)
 			    (int)((inplast - inpindex - 1) * 100 / inplast));
 			got_siginfo = 0;
 		}
+		if (got_sigalarm) {
+			setproctitle("%s p3 %d%%", cdevname,
+			    (int)((inplast - inpindex - 1) * 100 / inplast));
+			got_sigalarm = 0;
+		}
 		inp = inpsort[inpindex];
 		state = inoinfo(inp->i_number)->ino_state;
 		if (inp->i_number == ROOTINO ||

sbin/fsck_ffs/pass4.c

@@ -68,6 +68,11 @@ pass4(void)
 			    cg * 100 / sblock.fs_ncg);
 			got_siginfo = 0;
 		}
+		if (got_sigalarm) {
+			setproctitle("%s p4 %d%%", cdevname,
+			    cg * 100 / sblock.fs_ncg);
+			got_sigalarm = 0;
+		}
 		inumber = cg * sblock.fs_ipg;
 		for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) {
 			if (inumber < ROOTINO)

sbin/fsck_ffs/pass5.c

@@ -157,6 +157,11 @@ pass5(void)
 			    c * 100 / sblock.fs_ncg);
 			got_siginfo = 0;
 		}
+		if (got_sigalarm) {
+			setproctitle("%s p5 %d%%\n", cdevname,
+			    c * 100 / sblock.fs_ncg);
+			got_sigalarm = 0;
+		}
 		getblk(&cgblk, cgtod(fs, c), fs->fs_cgsize);
 		if (!cg_chkmagic(cg))
 			pfatal("CG %d: BAD MAGIC NUMBER\n", c);

sbin/fsck_ffs/utilities.c

@@ -117,3 +117,9 @@ infohandler(int sig __unused)
 {
 	got_siginfo = 1;
 }
+
+void
+alarmhandler(int sig __unused)
+{
+	got_sigalarm = 1;
+}