[JFFS2] add cond_resched() when garbage collecting deletion dirent

We observe soft lockups when doing heavy test which creates
directory with a lot of direntries and deletes them. This
cycle is the reason fo this. Make it nicer and add cond_resched()
inside of it.

Signed-off-by: Artem Bityutskiy <[e-mail]>
Signed-off-by: David Woodhouse <[e-mail]>

fs/jffs2/gc.c

···
 
 		for (raw = f->inocache->nodes; raw != (void *)f->inocache; raw = raw->next_in_ino) {
 
+			cond_resched();
+
 			/* We only care about obsolete ones */
 			if (!(ref_obsolete(raw)))
 				continue;