From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: axboe@fb.com, kent.overstreet@gmail.com,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org
Subject:
Date: Tue, 25 Oct 2016 17:08:12 +0200 [thread overview]
Message-ID: <1477408098-10153-1-git-send-email-hch@lst.de> (raw)
Subject: an iomap-based direct I/O implementation
Hi all,
this series adds a new direct I/O implementation based on the iomap
interface, and switches XFS to use it.
The first two patches are a resend of my earlier series to remove the
XFS iolock. They are needed for the lockdep assert in the new iomap
code.
The third patch adds a new helper to the block layer that builds bio
from locked down user pages without needing an additional page array.
This helper was originally written by Kent and then heavily rewritten
by me to use the iov_iter helper that also allow non-user page backed
iov_iters. (Kent - I kept your credits for it, if you feel this doesn't
look like your code anymore I'll happily claim it for me). This patch
should probably go into a shared branch in the block layer tree as I
have some other users for it as well.
The rest implements a new iomap_dio_rw direct I/O implementation and
switches XFS to use it.
next reply other threads:[~2016-10-25 15:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-25 15:08 Christoph Hellwig [this message]
2016-10-25 15:08 ` [PATCH 1/6] locking/lockdep: Provide a type check for lock_is_held Christoph Hellwig
2016-10-25 15:08 ` [PATCH 2/6] xfs: remove i_iolock and use i_rwsem in the VFS inode instead Christoph Hellwig
2016-10-25 15:08 ` [PATCH 3/6] block: add bio_iov_iter_get_pages() Christoph Hellwig
2016-10-25 15:08 ` [PATCH 4/6] fs: make sb_init_dio_done_wq available outside of direct-io.c Christoph Hellwig
2016-10-25 15:08 ` [PATCH 5/6] iomap: implement direct I/O Christoph Hellwig
2016-10-25 15:31 ` Kent Overstreet
2016-10-25 16:34 ` Christoph Hellwig
2016-10-25 17:13 ` Kent Overstreet
2016-10-26 7:44 ` Christoph Hellwig
2016-10-25 19:51 ` Kent Overstreet
2016-10-26 7:57 ` Christoph Hellwig
2016-10-26 13:53 ` Bob Peterson
2016-10-26 14:02 ` Christoph Hellwig
2016-10-25 15:08 ` [PATCH 6/6] xfs: use iomap_dio_rw Christoph Hellwig
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