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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-23 09:23:33 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-23 09:23:33 +0200
commit8083f3d78825c0ea1948339613914b46105bfd0b (patch)
tree25319c8651919f48cbae12eb3fe7490413ff9669 /drivers/md/bcache/bset.c
parent06b32fdb030989c45bb9dad685b794bf2395d53a (diff)
parent4b972a01a7da614b4796475f933094751a295a2f (diff)
Merge 5.2-rc6 into char-misc-next
We need the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md/bcache/bset.c')
-rw-r--r--drivers/md/bcache/bset.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 8f07fa6e1739..268f1b685084 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -887,12 +887,22 @@ unsigned int bch_btree_insert_key(struct btree_keys *b, struct bkey *k,
struct bset *i = bset_tree_last(b)->data;
struct bkey *m, *prev = NULL;
struct btree_iter iter;
+ struct bkey preceding_key_on_stack = ZERO_KEY;
+ struct bkey *preceding_key_p = &preceding_key_on_stack;
BUG_ON(b->ops->is_extents && !KEY_SIZE(k));
- m = bch_btree_iter_init(b, &iter, b->ops->is_extents
- ? PRECEDING_KEY(&START_KEY(k))
- : PRECEDING_KEY(k));
+ /*
+ * If k has preceding key, preceding_key_p will be set to address
+ * of k's preceding key; otherwise preceding_key_p will be set
+ * to NULL inside preceding_key().
+ */
+ if (b->ops->is_extents)
+ preceding_key(&START_KEY(k), &preceding_key_p);
+ else
+ preceding_key(k, &preceding_key_p);
+
+ m = bch_btree_iter_init(b, &iter, preceding_key_p);
if (b->ops->insert_fixup(b, k, &iter, replace_key))
return status;