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authorJens Axboe <axboe@kernel.dk>2022-04-11 00:13:24 +0300
committerJens Axboe <axboe@kernel.dk>2022-04-11 04:08:18 +0300
commitc4212f3eb89fd5654f0a6ed2ee1d13fcb86cb664 (patch)
tree796b3c37b860c82bb2bba81b92ac66e37da1c93e /fs
parentce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e (diff)
downloadlinux-c4212f3eb89fd5654f0a6ed2ee1d13fcb86cb664.tar.xz
io_uring: flag the fact that linked file assignment is sane
Give applications a way to tell if the kernel supports sane linked files, as in files being assigned at the right time to be able to reliably do <open file direct into slot X><read file from slot X> while using IOSQE_IO_LINK to order them. Not really a bug fix, but flag it as such so that it gets pulled in with backports of the deferred file assignment. Fixes: 6bf9c47a3989 ("io_uring: defer file assignment") Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 659f8ecba5b7..f060ad018ba4 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -11178,7 +11178,8 @@ static __cold int io_uring_create(unsigned entries, struct io_uring_params *p,
IORING_FEAT_CUR_PERSONALITY | IORING_FEAT_FAST_POLL |
IORING_FEAT_POLL_32BITS | IORING_FEAT_SQPOLL_NONFIXED |
IORING_FEAT_EXT_ARG | IORING_FEAT_NATIVE_WORKERS |
- IORING_FEAT_RSRC_TAGS | IORING_FEAT_CQE_SKIP;
+ IORING_FEAT_RSRC_TAGS | IORING_FEAT_CQE_SKIP |
+ IORING_FEAT_LINKED_FILE;
if (copy_to_user(params, p, sizeof(*p))) {
ret = -EFAULT;