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authorJens Axboe <axboe@kernel.dk>2022-04-10 15:13:24 -0600
committerJens Axboe <axboe@kernel.dk>2022-04-10 19:08:18 -0600
commitc4212f3eb89fd5654f0a6ed2ee1d13fcb86cb664 (patch)
tree796b3c37b860c82bb2bba81b92ac66e37da1c93e /include
parentce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e (diff)
downloadlinux-c4212f3eb89fd5654f0a6ed2ee1d13fcb86cb664.tar.bz2
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 'include')
-rw-r--r--include/uapi/linux/io_uring.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 784adc6f6ed2..1845cf7c80ba 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -296,6 +296,7 @@ struct io_uring_params {
#define IORING_FEAT_NATIVE_WORKERS (1U << 9)
#define IORING_FEAT_RSRC_TAGS (1U << 10)
#define IORING_FEAT_CQE_SKIP (1U << 11)
+#define IORING_FEAT_LINKED_FILE (1U << 12)
/*
* io_uring_register(2) opcodes and arguments