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authorJens Axboe <axboe@kernel.dk>2024-10-26 18:46:10 +0200
committerJens Axboe <axboe@kernel.dk>2024-11-02 22:44:30 +0100
commitf38f2847646f8be29a8fcb722e8b1dc8c8cb3924 (patch)
treecc7579041ea91589187121ff45cd43977ac79f17 /io_uring/rsrc.h
parentio_uring/rsrc: add an empty io_rsrc_node for sparse buffer entries (diff)
downloadlinux-f38f2847646f8be29a8fcb722e8b1dc8c8cb3924.tar.xz
linux-f38f2847646f8be29a8fcb722e8b1dc8c8cb3924.zip
io_uring: only initialize io_kiocb rsrc_nodes when needed
Add the empty node initializing to the preinit part of the io_kiocb allocation, and reset them if they have been used. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rsrc.h')
-rw-r--r--io_uring/rsrc.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h
index 323c3e78b864..48f712488f6b 100644
--- a/io_uring/rsrc.h
+++ b/io_uring/rsrc.h
@@ -81,8 +81,14 @@ static inline void io_put_rsrc_node(struct io_rsrc_node *node)
static inline void io_req_put_rsrc_nodes(struct io_kiocb *req)
{
- io_put_rsrc_node(req->rsrc_nodes[IORING_RSRC_FILE]);
- io_put_rsrc_node(req->rsrc_nodes[IORING_RSRC_BUFFER]);
+ if (req->rsrc_nodes[IORING_RSRC_FILE] != rsrc_empty_node) {
+ io_put_rsrc_node(req->rsrc_nodes[IORING_RSRC_FILE]);
+ req->rsrc_nodes[IORING_RSRC_FILE] = rsrc_empty_node;
+ }
+ if (req->rsrc_nodes[IORING_RSRC_BUFFER] != rsrc_empty_node) {
+ io_put_rsrc_node(req->rsrc_nodes[IORING_RSRC_BUFFER]);
+ req->rsrc_nodes[IORING_RSRC_BUFFER] = rsrc_empty_node;
+ }
}
static inline void io_req_assign_rsrc_node(struct io_kiocb *req,