From: Christoph Hellwig <hch@infradead.org>
To: Zhang Yi <yi.zhang@huaweicloud.com>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, djwong@kernel.org,
brauner@kernel.org, david@fromorbit.com, jack@suse.cz,
willy@infradead.org, yi.zhang@huawei.com,
chengzhihao1@huawei.com, yukuai3@huawei.com
Subject: Re: [PATCH v2 3/6] iomap: advance the ifs allocation if we have more than one blocks per folio
Date: Wed, 14 Aug 2024 23:00:23 -0700 [thread overview]
Message-ID: <Zr2Zd-fjb96D3ZQi@infradead.org> (raw)
In-Reply-To: <b098d15b-4b80-2b73-d05b-f4dbb5d4631a@huaweicloud.com>
On Wed, Aug 14, 2024 at 03:08:25PM +0800, Zhang Yi wrote:
> > iomap_invalidate_folio when it actually is needed?
> >
>
> Therefore, you mean current strategy of allocating ifs is to try to delay
> the allocation time as much as possible?
Yes.
> The advantage is that it could
> avoid some unnecessary allocation operations if the whole folio are
> invalidated before write back. right?
Yes. And hopefully we can also get to the point where we don't need
to actually allocate it for writeback. I've been wanting to do that
for a while but never got it.
next prev parent reply other threads:[~2024-08-15 6:00 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-12 12:11 [PATCH v2 0/6] iomap: some minor non-critical fixes and improvements when block size < folio size Zhang Yi
2024-08-12 12:11 ` [PATCH v2 1/6] iomap: correct the range of a partial dirty clear Zhang Yi
2024-08-12 16:33 ` Darrick J. Wong
2024-08-13 2:14 ` Zhang Yi
2024-08-14 1:53 ` Dave Chinner
2024-08-12 12:11 ` [PATCH v2 2/6] iomap: support invalidating partial folios Zhang Yi
2024-08-12 16:55 ` Darrick J. Wong
2024-08-12 12:11 ` [PATCH v2 3/6] iomap: advance the ifs allocation if we have more than one blocks per folio Zhang Yi
2024-08-12 12:47 ` yangerkun
2024-08-13 2:21 ` Zhang Yi
2024-08-14 5:32 ` Christoph Hellwig
2024-08-14 7:08 ` Zhang Yi
2024-08-15 6:00 ` Christoph Hellwig [this message]
2024-08-16 1:44 ` Zhang Yi
2024-08-17 4:27 ` Zhang Yi
2024-08-17 4:42 ` Matthew Wilcox
2024-08-17 6:16 ` Zhang Yi
2024-08-12 12:11 ` [PATCH v2 4/6] iomap: correct the dirty length in page mkwrite Zhang Yi
2024-08-12 16:45 ` Darrick J. Wong
2024-08-13 2:49 ` Zhang Yi
2024-08-14 5:36 ` Christoph Hellwig
2024-08-14 7:49 ` Zhang Yi
2024-08-15 5:59 ` Christoph Hellwig
2024-08-16 2:19 ` Zhang Yi
2024-08-17 4:45 ` Matthew Wilcox
2024-08-17 6:43 ` Zhang Yi
2024-08-12 12:11 ` [PATCH v2 5/6] iomap: don't mark blocks uptodate after partial zeroing Zhang Yi
2024-08-12 16:49 ` Darrick J. Wong
2024-08-13 3:01 ` Zhang Yi
2024-08-14 5:39 ` Christoph Hellwig
2024-08-17 4:48 ` Matthew Wilcox
2024-08-17 7:16 ` Zhang Yi
2024-08-12 12:11 ` [PATCH v2 6/6] iomap: reduce unnecessary state_lock when setting ifs uptodate and dirty bits Zhang Yi
2024-08-12 16:54 ` Darrick J. Wong
2024-08-12 17:00 ` Matthew Wilcox
2024-08-13 8:15 ` Zhang Yi
2024-08-14 1:49 ` [PATCH v2 0/6] iomap: some minor non-critical fixes and improvements when block size < folio size Dave Chinner
2024-08-14 2:14 ` Zhang Yi
2024-08-14 2:47 ` Dave Chinner
2024-08-14 3:57 ` Zhang Yi
2024-08-14 5:16 ` Dave Chinner
2024-08-14 6:32 ` Zhang Yi
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