From a2166b933ef9099b4fa6860b165e6dac553a97aa Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <dedekind@infradead.org>
Date: Thu, 28 Dec 2006 12:01:41 +0200
Subject: [PATCH] [JFFS2] Reschedule in loops

Make JFFS2 nicer and teach it to call cond_resched() in loops
which may be quite large.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
---
 fs/jffs2/scan.c    | 2 ++
 fs/jffs2/summary.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index a167e1c5d024..3af746eaff0e 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -139,6 +139,8 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 	for (i=0; i<c->nr_blocks; i++) {
 		struct jffs2_eraseblock *jeb = &c->blocks[i];
 
+		cond_resched();
+
 		/* reset summary info for next eraseblock scan */
 		jffs2_sum_reset_collected(s);
 
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index c4f7e4703c0a..25265965bdc1 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -396,6 +396,8 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
 	for (i=0; i<je32_to_cpu(summary->sum_num); i++) {
 		dbg_summary("processing summary index %d\n", i);
 
+		cond_resched();
+
 		/* Make sure there's a spare ref for dirty space */
 		err = jffs2_prealloc_raw_node_refs(c, jeb, 2);
 		if (err)