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.
