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authorJens Axboe <axboe@kernel.dk>2024-10-30 16:51:58 +0100
committerJens Axboe <axboe@kernel.dk>2024-11-02 22:45:30 +0100
commitd50f94d761a5d9a34e03a86e512e19d88cbeaf06 (patch)
tree7b7bc09d5f47e085122e8aa1f9da6c356c7da504 /io_uring/notif.c
parentio_uring/rsrc: add io_reset_rsrc_node() helper (diff)
downloadlinux-d50f94d761a5d9a34e03a86e512e19d88cbeaf06.tar.xz
linux-d50f94d761a5d9a34e03a86e512e19d88cbeaf06.zip
io_uring/rsrc: get rid of the empty node and dummy_ubuf
The empty node was used as a placeholder for a sparse entry, but it didn't really solve any issues. The caller still has to check for whether it's the empty node or not, it may as well just check for a NULL return instead. The dummy_ubuf was used for a sparse buffer entry, but NULL will serve the same purpose there of ensuring an -EFAULT on attempted import. Just use NULL for a sparse node, regardless of whether or not it's a file or buffer resource. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/notif.c')
-rw-r--r--io_uring/notif.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/io_uring/notif.c b/io_uring/notif.c
index 44bf21c0f810..4f02e969cf08 100644
--- a/io_uring/notif.c
+++ b/io_uring/notif.c
@@ -117,8 +117,8 @@ struct io_kiocb *io_alloc_notif(struct io_ring_ctx *ctx)
notif->file = NULL;
notif->task = current;
io_get_task_refs(1);
- notif->rsrc_nodes[IORING_RSRC_FILE] = rsrc_empty_node;
- notif->rsrc_nodes[IORING_RSRC_BUFFER] = rsrc_empty_node;
+ notif->rsrc_nodes[IORING_RSRC_FILE] = NULL;
+ notif->rsrc_nodes[IORING_RSRC_BUFFER] = NULL;
nd = io_notif_to_data(notif);
nd->zc_report = false;