Re: [PATCH] block: reexpand iov_iter after read/write

[Al Viro <viro@xxxxxxxxxxxxxxxxxx>]

On Thu, May 06, 2021 at 01:15:01PM -0600, Jens Axboe wrote:

> Attached output of perf annotate <func> for that last run.

Heh...  I wonder if keeping the value of iocb_flags(file) in
struct file itself would have a visible effect...