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authorDmitry Kadashev <dkadashev@gmail.com>2021-07-08 13:34:47 +0700
committerJens Axboe <axboe@kernel.dk>2021-08-23 13:48:52 -0600
commitcf30da90bc3a26911d369f199411f38b701394de (patch)
tree95877155ed02f3e753bc9347596d83e816b7c212 /include/uapi/linux/io_uring.h
parent7a8721f84fcb3b2946a92380b6fc311e017ff02c (diff)
io_uring: add support for IORING_OP_LINKATfor-5.15/io_uring-vfs-2021-08-30for-5.15/io_uring-vfs
IORING_OP_LINKAT behaves like linkat(2) and takes the same flags and arguments. In some internal places 'hardlink' is used instead of 'link' to avoid confusion with the SQE links. Name 'link' conflicts with the existing 'link' member of io_kiocb. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Suggested-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/io-uring/20210514145259.wtl4xcsp52woi6ab@wittgenstein/ Signed-off-by: Dmitry Kadashev <dkadashev@gmail.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/20210708063447.3556403-12-dkadashev@gmail.com [axboe: add splice_fd_in check] Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/io_uring.h')
-rw-r--r--include/uapi/linux/io_uring.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 61fd347ab176..10eb38d2864f 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -44,6 +44,7 @@ struct io_uring_sqe {
__u32 splice_flags;
__u32 rename_flags;
__u32 unlink_flags;
+ __u32 hardlink_flags;
};
__u64 user_data; /* data to be passed back at completion time */
/* pack this to avoid bogus arm OABI complaints */
@@ -135,6 +136,7 @@ enum {
IORING_OP_UNLINKAT,
IORING_OP_MKDIRAT,
IORING_OP_SYMLINKAT,
+ IORING_OP_LINKAT,
/* this goes last, obviously */
IORING_OP_LAST,