Re: [PATCH 0/2] block: Fix stale page cache of discard or zero out ioctl

[Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>]

On Nov 09, 2021 / 07:33, Jens Axboe wrote:
> On 11/9/21 3:47 AM, Shin'ichiro Kawasaki wrote:
> > When BLKDISCARD or BLKZEROOUT ioctl race with data read, stale page cache is
> > left. This patch series have two fox patches for the stale page cache. Same
> > fix approach was used as blkdev_fallocate() [1].
> > 
> > [1] https://marc.info/?l=linux-block&m=163236463716836
> > 
> > Shin'ichiro Kawasaki (2):
> >   block: Hold invalidate_lock in BLKDISCARD ioctl
> >   block: Hold invalidate_lock in BLKZEROOUT ioctl
> > 
> >  block/ioctl.c | 24 ++++++++++++++++++------
> >  1 file changed, 18 insertions(+), 6 deletions(-)
> > 
> 
> Do you want to do a v2 with BLKRESETZONE added as well? I can do these
> separately. but a bit awkward right now as my main block 5.16 branch
> doesn't yet have the bdev size changes. I'll queue this up post flushing
> out the remaining block bits for 5.16, if v2 with BLKRESETZONE happens
> before that I'll just use that one.

Let's separate the BLKRESETZONE patch. I'll need some more time to prepare it.

I saw the BLKDISCARD and BLKZEROOUT patches queued in the block-5.16 branch.
Thanks!

-- 
Best Regards,
Shin'ichiro Kawasaki