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authorPavel Begunkov <asml.silence@gmail.com>2024-10-18 18:07:31 +0200
committerJens Axboe <axboe@kernel.dk>2024-10-29 20:43:27 +0100
commit1e6e7602cc9fdeaf7e2593755409e8d50545ed69 (patch)
treee75318ca17f85ce0c24a51320812a2a3d7cd9591 /io_uring/io_uring.c
parentio_uring: move cancel hash tables to kvmalloc/kvfree (diff)
downloadlinux-1e6e7602cc9fdeaf7e2593755409e8d50545ed69.tar.xz
linux-1e6e7602cc9fdeaf7e2593755409e8d50545ed69.zip
io_uring: kill io_llist_xchg
io_llist_xchg is only used to set the list to NULL, which can also be done with llist_del_all(). Use the latter and kill io_llist_xchg. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/d6765112680d2e86a58b76166b7513391ff4e5d7.1729264960.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
-rw-r--r--io_uring/io_uring.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index d7ad4ea5f40b..c0358a8d85d2 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1081,20 +1081,6 @@ struct llist_node *io_handle_tw_list(struct llist_node *node,
return node;
}
-/**
- * io_llist_xchg - swap all entries in a lock-less list
- * @head: the head of lock-less list to delete all entries
- * @new: new entry as the head of the list
- *
- * If list is empty, return NULL, otherwise, return the pointer to the first entry.
- * The order of entries returned is from the newest to the oldest added one.
- */
-static inline struct llist_node *io_llist_xchg(struct llist_head *head,
- struct llist_node *new)
-{
- return xchg(&head->first, new);
-}
-
static __cold void io_fallback_tw(struct io_uring_task *tctx, bool sync)
{
struct llist_node *node = llist_del_all(&tctx->task_list);
@@ -1316,7 +1302,7 @@ again:
* llists are in reverse order, flip it back the right way before
* running the pending items.
*/
- node = llist_reverse_order(io_llist_xchg(&ctx->work_llist, NULL));
+ node = llist_reverse_order(llist_del_all(&ctx->work_llist));
while (node) {
struct llist_node *next = node->next;
struct io_kiocb *req = container_of(node, struct io_kiocb,