[PATCH] ext4: Fix lazyinit hang after removing request

[Lukas Czerner]

When the request has been removed from the list and no other request
has been issued, we will end up with next wakeup scheduled to
MAX_JIFFY_OFFSET which is bad. So check for that.

Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
---
 fs/ext4/super.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0348ce0..29c3078 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2740,7 +2740,8 @@ cont_thread:
 		if (freezing(current))
 			refrigerator();
 
-		if (time_after_eq(jiffies, next_wakeup)) {
+		if ((time_after_eq(jiffies, next_wakeup)) ||
+		    (MAX_JIFFY_OFFSET == next_wakeup)) {
 			cond_resched();
 			continue;
 		}
-- 
1.7.2.3

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