| From | "Ahmed S. Darwish" <> | Subject | [PATCH v1 7/8] rbtree_latch: Use seqcount_latch_t | Date | Thu, 27 Aug 2020 13:40:43 +0200 |
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Latch sequence counters have unique read and write APIs, and thus seqcount_latch_t was recently introduced at seqlock.h.
Use that new data type instead of plain seqcount_t. This adds the necessary type-safety and ensures that only latching-safe seqcount APIs are to be used.
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de> --- include/linux/rbtree_latch.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/rbtree_latch.h b/include/linux/rbtree_latch.h index 7d012faa509a..3d1a9e716b80 100644 --- a/include/linux/rbtree_latch.h +++ b/include/linux/rbtree_latch.h @@ -42,8 +42,8 @@ struct latch_tree_node { }; struct latch_tree_root { - seqcount_t seq; - struct rb_root tree[2]; + seqcount_latch_t seq; + struct rb_root tree[2]; }; /** @@ -206,7 +206,7 @@ latch_tree_find(void *key, struct latch_tree_root *root, do { seq = raw_read_seqcount_latch(&root->seq); node = __lt_find(key, root, seq & 1, ops->comp); - } while (read_seqcount_retry(&root->seq, seq)); + } while (read_seqcount_latch_retry(&root->seq, seq)); return node; } -- 2.28.0
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