From: Jan Kara <jack@suse.cz>
To: <linux-mm@kvack.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Jan Kara <jack@suse.cz>, "Theodore Ts'o" <tytso@mit.edu>,
linux-ext4@vger.kernel.org,
Nadia Yvette Chambers <nyc@holomorphy.com>,
linux-fsdevel@vger.kernel.org
Subject: [PATCH 0/10 v2] Ranged pagevec lookup
Date: Wed, 26 Jul 2017 13:46:54 +0200 [thread overview]
Message-ID: <20170726114704.7626-1-jack@suse.cz> (raw)
Hello,
This patch series was split out of the larger series to clean up pagevec APIs
and provide ranged lookups. In this series I make pagevec_lookup() update the
index (to be consistent with pagevec_lookup_tag() and also as a preparation
for ranged lookups), provide ranged variant of pagevec_lookup() and use it
in places where it makes sense. This not only removes some common code but
is also a measurable performance win for some use cases (see patch 4/10) where
radix tree is sparse and searching & grabing of a page after the end of the
range has measurable overhead.
Andrew, can you please consider merging this series?
Full series including dependencies can be also obtained from my git tree:
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git find_get_pages_range
Opinions and review welcome!
Honza
next reply other threads:[~2017-07-26 11:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-26 11:46 Jan Kara [this message]
2017-07-26 11:46 ` [PATCH 05/10] ext4: Use pagevec_lookup_range() in ext4_find_unwritten_pgoff() Jan Kara
2017-07-26 11:47 ` [PATCH 06/10] ext4: Use pagevec_lookup_range() in writeback code Jan Kara
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