From: Hannes Reinecke <hare@suse.de>
To: Matthew Wilcox <willy@infradead.org>,
"Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>
Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
gost.dev@samsung.com, chandan.babu@oracle.com, mcgrof@kernel.org,
djwong@kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, david@fromorbit.com,
akpm@linux-foundation.org, Pankaj Raghav <p.raghav@samsung.com>
Subject: Re: [PATCH v3 04/11] readahead: rework loop in page_cache_ra_unbounded()
Date: Tue, 26 Mar 2024 10:39:02 +0100 [thread overview]
Message-ID: <7217df4e-470b-46ab-a4fc-1d4681256885@suse.de> (raw)
In-Reply-To: <ZgHFPZ9tNLLjKZpz@casper.infradead.org>
On 3/25/24 19:41, Matthew Wilcox wrote:
> On Wed, Mar 13, 2024 at 06:02:46PM +0100, Pankaj Raghav (Samsung) wrote:
>> @@ -239,8 +239,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
>> * not worth getting one just for that.
>> */
>> read_pages(ractl);
>> - ractl->_index++;
>> - i = ractl->_index + ractl->_nr_pages - index - 1;
>> + ractl->_index += folio_nr_pages(folio);
>> + i = ractl->_index + ractl->_nr_pages - index;
>> continue;
>> }
>>
>> @@ -252,13 +252,14 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
>> folio_put(folio);
>> read_pages(ractl);
>> ractl->_index++;
>> - i = ractl->_index + ractl->_nr_pages - index - 1;
>> + i = ractl->_index + ractl->_nr_pages - index;
>> continue;
>> }
>
> You changed index++ in the first hunk, but not the second hunk. Is that
> intentional?
Hmm. Looks you are right; it should be modified, too.
Will be fixing it up.
Cheers,
Hannes
next prev parent reply other threads:[~2024-03-26 9:39 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-13 17:02 [PATCH v3 00/11] enable bs > ps in XFS Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 01/11] mm: Support order-1 folios in the page cache Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 02/11] fs: Allow fine-grained control of folio sizes Pankaj Raghav (Samsung)
2024-03-25 18:29 ` Matthew Wilcox
2024-03-26 8:44 ` Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 03/11] filemap: allocate mapping_min_order folios in the page cache Pankaj Raghav (Samsung)
2024-03-15 13:21 ` Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 04/11] readahead: rework loop in page_cache_ra_unbounded() Pankaj Raghav (Samsung)
2024-03-25 18:41 ` Matthew Wilcox
2024-03-26 8:56 ` Pankaj Raghav (Samsung)
2024-03-26 9:39 ` Hannes Reinecke [this message]
2024-03-26 9:44 ` Pankaj Raghav
2024-03-26 10:00 ` Hannes Reinecke
2024-03-26 10:06 ` Pankaj Raghav
2024-03-26 10:55 ` Hannes Reinecke
2024-03-26 13:41 ` Pankaj Raghav (Samsung)
2024-03-26 15:11 ` Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 05/11] readahead: allocate folios with mapping_min_order in readahead Pankaj Raghav (Samsung)
2024-03-25 19:00 ` Matthew Wilcox
2024-03-26 13:08 ` Pankaj Raghav (Samsung)
2024-04-22 11:03 ` Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 06/11] readahead: round up file_ra_state->ra_pages to mapping_min_nrpages Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 07/11] mm: do not split a folio if it has minimum folio order requirement Pankaj Raghav (Samsung)
2024-03-25 19:06 ` Matthew Wilcox
2024-03-26 16:10 ` Pankaj Raghav (Samsung)
2024-03-26 16:23 ` Zi Yan
2024-03-26 16:33 ` Pankaj Raghav
2024-03-26 16:38 ` Zi Yan
2024-03-13 17:02 ` [PATCH v3 08/11] iomap: fix iomap_dio_zero() for fs bs > system page size Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 09/11] xfs: expose block size in stat Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 10/11] xfs: make the calculation generic in xfs_sb_validate_fsb_count() Pankaj Raghav (Samsung)
2024-03-25 19:15 ` Matthew Wilcox
2024-03-26 9:53 ` Pankaj Raghav (Samsung)
2024-03-13 17:02 ` [PATCH v3 11/11] xfs: enable block size larger than page size support Pankaj Raghav (Samsung)
2024-03-25 19:19 ` [PATCH v3 00/11] enable bs > ps in XFS Matthew Wilcox
2024-03-26 9:53 ` Hannes Reinecke
2024-03-26 15:06 ` Pankaj Raghav
2024-03-26 14:54 ` Pankaj Raghav (Samsung)
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