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38aa0889b2
linux/fs/f2fs
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Jaegeuk Kim 38aa0889b2 f2fs: align direct_io'ed data to section 
This patch aligns the start block address of a file for direct io to the f2fs's
section size.

Some flash devices manage an over 4KB-sized page as a write unit, and if the
direct_io'ed data are written but not aligned to that unit, the performance can
be degraded due to the partial page copies.

Thus, since f2fs has a section that is well aligned to FTL units, we can align
the block address to the section size so that f2fs avoids this misalignment.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-09 17:02:27 -08:00
..
acl.c f2fs: avoid double lock for cp_rwsem 2015-01-09 17:02:25 -08:00
acl.h f2fs: avoid deadlock on init_inode_metadata 2014-11-03 16:07:33 -08:00
checkpoint.c f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively 2015-01-09 17:02:26 -08:00
data.c f2fs: align direct_io'ed data to section 2015-01-09 17:02:27 -08:00
debug.c f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively 2015-01-09 17:02:26 -08:00
dir.c f2fs: use missing the use of f2fs_kunmap_page 2015-01-09 17:02:22 -08:00
f2fs.h f2fs: align direct_io'ed data to section 2015-01-09 17:02:27 -08:00
file.c f2fs: clean up to remove parameter 2015-01-09 17:02:26 -08:00
gc.c f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively 2015-01-09 17:02:26 -08:00
gc.h f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively 2015-01-09 17:02:26 -08:00
hash.c f2fs: fix wrong casting for dentry name 2014-08-29 00:26:50 -07:00
inline.c f2fs: clean up to remove parameter 2015-01-09 17:02:26 -08:00
inode.c f2fs: change atomic and volatile write policies 2015-01-09 17:02:22 -08:00
Kconfig f2fs: add f2fs_io_tracer support 2015-01-09 17:02:24 -08:00
Makefile f2fs: add f2fs_io_tracer support 2015-01-09 17:02:24 -08:00
namei.c f2fs: introduce f2fs_dentry_kunmap to clean up 2014-11-23 21:51:53 -08:00
node.c f2fs: avoid potential unnecessary codes 2015-01-09 17:02:26 -08:00
node.h f2fs: fix missing cold bit during recovery 2015-01-09 17:02:25 -08:00
recovery.c f2fs: clean up to remove parameter 2015-01-09 17:02:26 -08:00
segment.c f2fs: align direct_io'ed data to section 2015-01-09 17:02:27 -08:00
segment.h f2fs: do not skip any writes under memory pressure 2014-11-10 06:51:38 -08:00
super.c f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively 2015-01-09 17:02:26 -08:00
trace.c f2fs: add key functions for f2fs_io_tracer 2015-01-09 17:02:24 -08:00
trace.h f2fs: add key functions for f2fs_io_tracer 2015-01-09 17:02:24 -08:00
xattr.c f2fs: avoid deadlock on init_inode_metadata 2014-11-03 16:07:33 -08:00
xattr.h f2fs: avoid deadlock on init_inode_metadata 2014-11-03 16:07:33 -08:00