diff options
authorJens Axboe <>2022-05-07 10:08:31 -0600
committerJens Axboe <>2022-05-09 09:15:39 -0600
commitbd3bc9e99a916c26a5eb872fa1b938f19120a60f (patch)
parent08cf52bc6eb44e72c3bc507d0d8bcf1b50270aa0 (diff)
io_uring: allow allocated fixed files for accept
If the application passes in IORING_FILE_INDEX_ALLOC as the file_slot, then that's a hint to allocate a fixed file descriptor rather than have one be passed in directly. This can be useful for having io_uring manage the direct descriptor space, and also allows multi-shot support to work with fixed files. Normal accept direct requests will complete with 0 for success, and < 0 in case of error. If io_uring is asked to allocated the direct descriptor, then the direct descriptor is returned in case of success. Signed-off-by: Jens Axboe <>
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index ef999d0e09de..7356e80ffdbb 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5801,8 +5801,8 @@ static int io_accept(struct io_kiocb *req, unsigned int issue_flags)
fd_install(fd, file);
ret = fd;
} else {
- ret = io_install_fixed_file(req, file, issue_flags,
- accept->file_slot - 1);
+ ret = io_fixed_fd_install(req, issue_flags, file,
+ accept->file_slot);
__io_req_complete(req, issue_flags, ret, 0);
return 0;