From: Kent Overstreet <kmo@daterainc.com>
Date: Sat, 7 Dec 2013 11:57:58 +0000 (-0800)
Subject: bcache: Don't return -EINTR when insert finished
X-Git-Tag: accepted/tizen/common/20141203.182822~667^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3b3e9e50dd951725130645660b526c4f367dcdee;p=platform%2Fkernel%2Flinux-arm64.git

bcache: Don't return -EINTR when insert finished

We need to return -EINTR after a split because we invalidated iterators
(and freed the btree node) - but if we were finished inserting, we don't
want to redo the traversal.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 463d280..98cc0a8 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2002,8 +2002,10 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 			return -EINTR;
 		} else {
 			/* Invalidated all iterators */
-			return btree_split(b, op, insert_keys, replace_key) ?:
-				-EINTR;
+			int ret = btree_split(b, op, insert_keys, replace_key);
+
+			return bch_keylist_empty(insert_keys) ?
+				0 : ret ?: -EINTR;
 		}
 	} else {
 		BUG_ON(write_block(b) != btree_bset_last(b));