tree 222c1ed5d1ff7e7dc26eca91463520cc8fb88d19
parent 00ff2f5b7a96edf9fbb2dda1c253ac5b06a8a05e
author Jens Axboe <axboe@kernel.dk> 1678142737 -0700
committer Jens Axboe <axboe@kernel.dk> 1678901787 -0600

pipe: enable handling of IOCB_NOWAIT

In preparation for enabling FMODE_NOWAIT for pipes, ensure that the read
and write path handle it correctly. This includes the pipe locking,
page allocation for writes, and confirming pipe buffers.

Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>