From: Jens Axboe <axboe@kernel.dk>
To: linux-fsdevel@vger.kernel.org
Cc: viro@zeniv.linux.org.uk, akpm@linux-foundation.org
Subject: [PATCHSET 0/3] Submit ->readpages() IO as read-ahead
Date: Thu, 24 May 2018 10:02:51 -0600 [thread overview]
Message-ID: <1527177774-21414-1-git-send-email-axboe@kernel.dk> (raw)
The only caller of ->readpages() is from read-ahead, yet we don't
submit IO flagged with REQ_RAHEAD. This means we don't see it in
blktrace, for instance, which is a shame. We already make assumptions
about ->readpages() just being for read-ahead in the mpage
implementation, using readahead_gfp_mask(mapping) as out GFP mask of
choice.
This small series fixes up mpage_readpages() to submit with
REQ_RAHEAD, which takes care of file systems using mpage_readpages().
The last two fixup ext4 and btrfs.
--
Jens Axboe
next reply other threads:[~2018-05-24 16:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-24 16:02 Jens Axboe [this message]
2018-05-24 16:02 ` [PATCH 1/3] mpage: mpage_readpages() should submit IO as read-ahead Jens Axboe
2018-05-24 19:43 ` Andrew Morton
2018-05-24 19:57 ` Matthew Wilcox
2018-05-24 20:24 ` Jens Axboe
2018-05-29 14:36 ` Jens Axboe
2018-05-29 21:59 ` Andrew Morton
2018-05-29 22:18 ` Jens Axboe
2018-05-29 22:37 ` Jens Axboe
2018-05-24 16:02 ` [PATCH 2/3] btrfs: readpages() " Jens Axboe
2018-05-24 16:02 ` [PATCH 3/3] ext4: " Jens Axboe
2018-05-24 20:47 ` Theodore Y. Ts'o
2018-05-24 20:53 ` Jens Axboe
2018-05-24 21:05 ` Jens Axboe
2018-05-25 8:32 ` [PATCHSET 0/3] Submit ->readpages() " Christoph Hellwig
2018-05-25 14:21 ` Jens Axboe
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