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From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: iomap based buffered reads & iomap cleanups v4
Date: Wed, 30 May 2018 11:58:00 +0200	[thread overview]
Message-ID: <20180530095813.31245-1-hch@lst.de> (raw)

Hi all,

this series adds support for buffered reads without buffer heads to
the iomap and XFS code.  It has been split from the larger series
for easier review.


A git tree is available at:

    git://git.infradead.org/users/hch/xfs.git xfs-iomap-read.4

Gitweb:

    http://git.infradead.org/users/hch/xfs.git/shortlog/refs/heads/xfs-iomap-read.4

Changes since v3:
 - remove iomap_read_bio_alloc
 - set REQ_RAHEAD flag for readpages
 - better commen on the add_to_page_cache_lru semantics for readpages
 - move all write related patches to a separate series

Changes since v2:
 - minor page_seek_hole_data tweaks
 - don't read data entirely covered by the write operation in write_begin
 - fix zeroing on write_begin I/O failure
 - remove iomap_block_needs_zeroing to make the code more clear
 - update comments on __do_page_cache_readahead

Changes since v1:
 - fix the iomap_readpages error handling
 - use unsigned file offsets in a few places to avoid arithmetic overflows
 - allocate a iomap_page in iomap_page_mkwrite to fix generic/095
 - improve a few comments
 - add more asserts
 - warn about truncated block numbers from ->bmap
 - new patch to change the __do_page_cache_readahead return value to
   unsigned int
 - remove an incorrectly added empty line
 - make inline data an explicit iomap type instead of a flag
 - add a IOMAP_F_BUFFER_HEAD flag to force use of buffers heads for gfs2,
   and keep the basic buffer head infrastructure around for now.

             reply	other threads:[~2018-05-30  9:58 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-30  9:58 Christoph Hellwig [this message]
2018-05-30  9:58 ` [PATCH 01/13] block: add a lower-level bio_add_page interface Christoph Hellwig
2018-05-30 10:12   ` Ming Lei
2018-05-30  9:58 ` [PATCH 02/13] mm: give the 'ret' variable a better name __do_page_cache_readahead Christoph Hellwig
2018-05-30 23:01   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 03/13] mm: return an unsigned int from __do_page_cache_readahead Christoph Hellwig
2018-05-30 23:02   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 04/13] mm: split ->readpages calls to avoid non-contiguous pages lists Christoph Hellwig
2018-05-30 23:02   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 05/13] iomap: inline data should be an iomap type, not a flag Christoph Hellwig
2018-05-30 23:05   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 06/13] iomap: fix the comment describing IOMAP_NOWAIT Christoph Hellwig
2018-05-30 23:05   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 07/13] iomap: move IOMAP_F_BOUNDARY to gfs2 Christoph Hellwig
2018-05-30 23:08   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 08/13] iomap: use __bio_add_page in iomap_dio_zero Christoph Hellwig
2018-05-30 23:09   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 09/13] iomap: add a iomap_sector helper Christoph Hellwig
2018-05-30 23:10   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 10/13] iomap: add an iomap-based bmap implementation Christoph Hellwig
2018-05-30 23:11   ` Dave Chinner
2018-05-31  6:07     ` Christoph Hellwig
2018-05-30  9:58 ` [PATCH 11/13] iomap: add an iomap-based readpage and readpages implementation Christoph Hellwig
2018-05-30 16:22   ` Darrick J. Wong
2018-05-30 23:45   ` Dave Chinner
2018-05-31  6:13     ` Christoph Hellwig
2018-05-31 11:59       ` Dave Chinner
2018-05-30  9:58 ` [PATCH 12/13] xfs: use iomap_bmap Christoph Hellwig
2018-05-30 23:46   ` Dave Chinner
2018-05-30  9:58 ` [PATCH 13/13] xfs: use iomap for blocksize == PAGE_SIZE readpage and readpages Christoph Hellwig
2018-05-30 23:47   ` Dave Chinner

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