From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Subject: stop using buffer heads in xfs v7
Date: Mon, 2 Jul 2018 08:57:51 -0600 [thread overview]
Message-ID: <20180702145813.22496-1-hch@lst.de> (raw)
Hi all,
this series adds support for buffered writes without buffer heads to
the iomap and XFS code.
A git tree is available at:
git://git.infradead.org/users/hch/xfs.git xfs-iomap-write.7
Gitweb:
http://git.infradead.org/users/hch/xfs.git/shortlog/refs/heads/xfs-iomap-write.7
Changes since v6:
- fixe EOF zeroing for small blocksizes
- various comment updates
- new patch to update copyrights
Changes since v5:
- merged the leftovers of the previous series into one
- rebased on top of the gfs2 iomap prep series
- fixed the map_blocks map conditions
- clean up a loop in __iomap_write_begin
Changes since v4:
- make the logic more clear in xfs_bmap_punch_delalloc_range
- fix a missing unlock in xfs_bmap_punch_delalloc_range
- always look up COW extents to check for overlaps
- lots of patch reshuffling and splitting without impact to the final
result
Changes since v3:
- iterate backwards in xfs_bmap_punch_delalloc_range
- remove the cow_valid variable in xfs_reflink_trim_irec_to_next_cow
- additional trivial xfs_map_blocks simplifications
- split the read side into a separate prep series
- moved the SEEK_HOLE/DATA patches not strictly required out of the
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.
next reply other threads:[~2018-07-02 14:58 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-02 14:57 Christoph Hellwig [this message]
2018-07-02 14:57 ` [PATCH 01/22] xfs: use iomap for blocksize == PAGE_SIZE readpage and readpages Christoph Hellwig
2018-07-02 14:57 ` [PATCH 02/22] xfs: simplify xfs_aops_discard_page Christoph Hellwig
2018-07-02 14:57 ` [PATCH 03/22] xfs: move locking into xfs_bmap_punch_delalloc_range Christoph Hellwig
2018-07-02 14:57 ` [PATCH 04/22] xfs: do not set the page uptodate in xfs_writepage_map Christoph Hellwig
2018-07-02 14:57 ` [PATCH 05/22] xfs: don't clear imap_valid for a non-uptodate buffers Christoph Hellwig
2018-07-02 14:57 ` [PATCH 06/22] xfs: don't use XFS_BMAPI_IGSTATE in xfs_map_blocks Christoph Hellwig
2018-07-02 14:57 ` [PATCH 07/22] xfs: remove xfs_reflink_trim_irec_to_next_cow Christoph Hellwig
2018-07-02 14:57 ` [PATCH 08/22] xfs: remove xfs_map_cow Christoph Hellwig
2018-07-02 14:58 ` [PATCH 09/22] xfs: rename the offset variable in xfs_writepage_map Christoph Hellwig
2018-07-02 14:58 ` [PATCH 10/22] xfs: make xfs_writepage_map extent map centric Christoph Hellwig
2018-07-02 14:58 ` [PATCH 11/22] xfs: remove the now unused XFS_BMAPI_IGSTATE flag Christoph Hellwig
2018-07-02 14:58 ` [PATCH 12/22] xfs: remove xfs_reflink_find_cow_mapping Christoph Hellwig
2018-07-02 14:58 ` [PATCH 13/22] xfs: simplify xfs_map_blocks by using xfs_iext_lookup_extent directly Christoph Hellwig
2018-07-02 14:58 ` [PATCH 14/22] xfs: remove the imap_valid flag Christoph Hellwig
2018-07-02 14:58 ` [PATCH 15/22] xfs: don't look at buffer heads in xfs_add_to_ioend Christoph Hellwig
2018-07-02 14:58 ` [PATCH 16/22] xfs: move all writeback buffer_head manipulation into xfs_map_at_offset Christoph Hellwig
2018-07-02 14:58 ` [PATCH 17/22] xfs: remove xfs_start_page_writeback Christoph Hellwig
2018-07-02 14:58 ` [PATCH 18/22] xfs: refactor the tail of xfs_writepage_map Christoph Hellwig
2018-07-02 14:58 ` [PATCH 19/22] xfs: allow writeback on pages without buffer heads Christoph Hellwig
2018-07-02 14:58 ` [PATCH 20/22] iomap: add support for sub-pagesize buffered I/O " Christoph Hellwig
2018-07-03 12:31 ` Brian Foster
2018-07-03 21:52 ` Darrick J. Wong
2018-07-02 14:58 ` [PATCH 21/22] xfs: add support for sub-pagesize writeback without buffer_heads Christoph Hellwig
2018-07-03 12:36 ` Brian Foster
2018-07-03 22:05 ` Darrick J. Wong
2018-07-08 15:16 ` Christoph Hellwig
2018-07-10 1:02 ` Brian Foster
2018-07-10 12:15 ` Christoph Hellwig
2018-07-11 10:58 ` Brian Foster
2018-07-02 14:58 ` [PATCH 22/22] xfs: update my copyrights for the writeback and iomap code Christoph Hellwig
2018-07-03 12:36 ` Brian Foster
2018-07-03 21:51 ` Darrick J. Wong
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