tag 9594de9d73a66853279305b0a29e4ded882a5191
tagger Jens Axboe <axboe@kernel.dk> Mon Aug 30 08:57:54 2021 -0600
object cf30da90bc3a26911d369f199411f38b701394de

for-5.15/io_uring-vfs-2021-08-30

commit cf30da90bc3a26911d369f199411f38b701394de
author Dmitry Kadashev <dkadashev@gmail.com> Thu Jul 08 13:34:47 2021 +0700
committer Jens Axboe <axboe@kernel.dk> Mon Aug 23 13:48:52 2021 -0600
tree 95877155ed02f3e753bc9347596d83e816b7c212
parent 7a8721f84fcb3b2946a92380b6fc311e017ff02c

io_uring: add support for IORING_OP_LINKAT

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>