From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>, Hyeoncheol Lee <cheol.lee@lge.com>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Robert Jennings <rcj@linux.vnet.ibm.com>,
Jerome Marchand <jmarchan@redhat.com>
Subject: Re: [RFC] blk: increase logical_block_size to unsigned int
Date: Mon, 9 Jan 2017 23:33:44 +0900 [thread overview]
Message-ID: <20170109143344.GA753@tigerII.localdomain> (raw)
In-Reply-To: <1483938267-8858-1-git-send-email-minchan@kernel.org>
On (01/09/17 14:04), Minchan Kim wrote:
> Mostly, zram is used as swap system on embedded world so it want to do IO
> as PAGE_SIZE aligned/size IO unit. For that, one of the problem was
> blk_queue_logical_block_size(zram->disk->queue, PAGE_SIZE) made overflow
> in *64K page system* so [1] changed it to constant 4096.
> Since that, partial IO can happen so zram should handle it which makes zram
> complicated[2].
>
I thought that zram partial IO support is there because some file
systems cannot cope with large logical_block_size. like FAT, for
example. am I wrong?
-ss
next prev parent reply other threads:[~2017-01-09 14:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-09 5:04 [RFC] blk: increase logical_block_size to unsigned int Minchan Kim
2017-01-09 14:33 ` Sergey Senozhatsky [this message]
2017-01-09 15:09 ` Jerome Marchand
2017-01-10 22:54 ` Minchan Kim
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170109143344.GA753@tigerII.localdomain \
--to=sergey.senozhatsky@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=axboe@kernel.dk \
--cc=cheol.lee@lge.com \
--cc=jmarchan@redhat.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=minchan@kernel.org \
--cc=rcj@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).