jffs2: Use jffs2_garbage_collect_trigger() to trigger pending erases

This is now done in a GC pass; we don't need to trigger kupdated to do it.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

fs/jffs2/erase.c

@@ -168,10 +168,10 @@ static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblo
 	mutex_lock(&c->erase_free_sem);
 	spin_lock(&c->erase_completion_lock);
 	list_move_tail(&jeb->list, &c->erase_complete_list);
+	/* Wake the GC thread to mark them clean */
+	jffs2_garbage_collect_trigger(c);
 	spin_unlock(&c->erase_completion_lock);
 	mutex_unlock(&c->erase_free_sem);
-	/* Ensure that kupdated calls us again to mark them clean */
-	jffs2_erase_pending_trigger(c);
 	wake_up(&c->erase_wait);
 }
 
@@ -491,9 +491,9 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
 
 refile:
 	/* Stick it back on the list from whence it came and come back later */
-	jffs2_erase_pending_trigger(c);
 	mutex_lock(&c->erase_free_sem);
 	spin_lock(&c->erase_completion_lock);
+	jffs2_garbage_collect_trigger(c);
 	list_move(&jeb->list, &c->erase_complete_list);
 	spin_unlock(&c->erase_completion_lock);
 	mutex_unlock(&c->erase_free_sem);

fs/jffs2/gc.c

@@ -448,7 +448,7 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
 		list_add_tail(&c->gcblock->list, &c->erase_pending_list);
 		c->gcblock = NULL;
 		c->nr_erasing_blocks++;
-		jffs2_erase_pending_trigger(c);
+		jffs2_garbage_collect_trigger(c);
 	}
 	spin_unlock(&c->erase_completion_lock);
 

fs/jffs2/nodemgmt.c

@@ -229,7 +229,7 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
 			ejeb = list_entry(c->erasable_list.next, struct jffs2_eraseblock, list);
 			list_move_tail(&ejeb->list, &c->erase_pending_list);
 			c->nr_erasing_blocks++;
-			jffs2_erase_pending_trigger(c);
+			jffs2_garbage_collect_trigger(c);
 			D1(printk(KERN_DEBUG "jffs2_find_nextblock: Triggering erase of erasable block at 0x%08x\n",
 				  ejeb->offset));
 		}
@@ -625,7 +625,7 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
 				D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
 				list_add_tail(&jeb->list, &c->erase_pending_list);
 				c->nr_erasing_blocks++;
-				jffs2_erase_pending_trigger(c);
+				jffs2_garbage_collect_trigger(c);
 			} else {
 				/* Sometimes, however, we leave it elsewhere so it doesn't get
 				   immediately reused, and we spread the load a bit. */

fs/jffs2/scan.c

@@ -260,7 +260,9 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 			ret = -EIO;
 			goto out;
 		}
-		jffs2_erase_pending_trigger(c);
+		spin_lock(&c->erase_completion_lock);
+		jffs2_garbage_collect_trigger(c);
+		spin_unlock(&c->erase_completion_lock);
 	}
 	ret = 0;
  out:

fs/jffs2/wbuf.c

@@ -121,7 +121,7 @@ static inline void jffs2_refile_wbuf_blocks(struct jffs2_sb_info *c)
 			D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
 			list_add_tail(&jeb->list, &c->erase_pending_list);
 			c->nr_erasing_blocks++;
-			jffs2_erase_pending_trigger(c);
+			jffs2_garbage_collect_trigger(c);
 		} else {
 			/* Sometimes, however, we leave it elsewhere so it doesn't get
 			   immediately reused, and we spread the load a bit. */
@@ -152,7 +152,7 @@ static void jffs2_block_refile(struct jffs2_sb_info *c, struct jffs2_eraseblock
 		D1(printk("Refiling block at %08x to erase_pending_list\n", jeb->offset));
 		list_add(&jeb->list, &c->erase_pending_list);
 		c->nr_erasing_blocks++;
-		jffs2_erase_pending_trigger(c);
+		jffs2_garbage_collect_trigger(c);
 	}
 
 	if (!jffs2_prealloc_raw_node_refs(c, jeb, 1)) {
@@ -543,7 +543,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
 		D1(printk(KERN_DEBUG "Failing block at %08x is now empty. Moving to erase_pending_list\n", jeb->offset));
 		list_move(&jeb->list, &c->erase_pending_list);
 		c->nr_erasing_blocks++;
-		jffs2_erase_pending_trigger(c);
+		jffs2_garbage_collect_trigger(c);
 	}
 
 	jffs2_dbg_acct_sanity_check_nolock(c, jeb);