[PATCH 0/2] ondemand readahead simplifications

[Fengguang Wu <wfg@mail.ustc.edu.cn>]

Andrew,

With the help from Rusty, the interface and data structure of ondemand
readahead are made more clear:

	readahead: split ondemand readahead interface into two functions
	readahead: sanify file_ra_state names

diffstat:
 fs/ext3/dir.c      |    4 -
 fs/ext4/dir.c      |    4 -
 fs/splice.c        |    6 -
 include/linux/fs.h |   61 +--------------
 include/linux/mm.h |   20 +++--
 mm/filemap.c       |   10 +-
 mm/readahead.c     |  165 +++++++++++++++++++++----------------------
 7 files changed, 116 insertions(+), 154 deletions(-)

Regards,
Fengguang
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