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

On Thu, May 06, 2021 at 09:08:50PM +0000, Al Viro wrote:

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

quoted

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...

I suggested that ...
https://lore.kernel.org/linux-fsdevel/20210110061321.GC35215@casper.infradead.org/ (local)