From: Christoph Hellwig <hch@lst.de>
To: xfs@oss.sgi.com
Cc: rpeterso@redhat.com, linux-fsdevel@vger.kernel.org
Subject: iomap infrastructure and multipage writes V2
Date: Tue, 12 Apr 2016 13:52:54 -0700 [thread overview]
Message-ID: <1460494382-14547-1-git-send-email-hch@lst.de> (raw)
This series add a new file system I/O path that uses the iomap structure
introduced for the pNFS support and support multi-page buffered writes.
This was first started by Dave Chinner a long time ago, then I did beat
it into shape for production runs in a very constrained ARM NAS
enviroment for Tuxera almost as long ago, and now half a dozen rewrites
later it's back.
The basic idea is to avoid the crazy per-block get_blocks overhead
and make use of extents in the buffered write path by iterating over
them instead.
Chances since V1:
- add support for fiemap
- fix a test fail on 1k block sizes
- prepare for 64-bit length, this will be used in a follow on patchset
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next reply other threads:[~2016-04-12 20:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-12 20:52 Christoph Hellwig [this message]
2016-04-12 20:52 ` [PATCH 1/8] fs: move struct iomap from exportfs.h to a separate header Christoph Hellwig
2016-04-12 20:52 ` [PATCH 2/8] fs: introduce iomap infrastructure Christoph Hellwig
2016-04-12 20:52 ` [PATCH 3/8] xfs: make xfs_bmbt_to_iomap available outside of xfs_pnfs.c Christoph Hellwig
2016-04-12 20:52 ` [PATCH 4/8] xfs: reorder zeroing and flushing sequence in truncate Christoph Hellwig
2016-04-12 20:52 ` [PATCH 5/8] xfs: implement iomap based buffered write path Christoph Hellwig
2016-04-14 12:58 ` Brian Foster
2016-05-02 18:25 ` Christoph Hellwig
2016-05-03 15:02 ` Brian Foster
2016-05-03 18:15 ` Christoph Hellwig
2016-04-12 20:53 ` [PATCH 6/8] xfs: remove buffered write support from __xfs_get_blocks Christoph Hellwig
2016-04-12 20:53 ` [PATCH 7/8] fs: iomap based fiemap implementation Christoph Hellwig
2016-04-12 20:53 ` [PATCH 8/8] xfs: use iomap " Christoph Hellwig
2016-04-13 21:54 ` iomap infrastructure and multipage writes V2 Dave Chinner
2016-05-02 18:23 ` Christoph Hellwig
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