]> err.no Git - linux-2.6/commit
readahead: convert filemap invocations
authorFengguang Wu <wfg@mail.ustc.edu.cn>
Thu, 19 Jul 2007 08:48:02 +0000 (01:48 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Thu, 19 Jul 2007 17:04:44 +0000 (10:04 -0700)
commit3ea89ee86a82e9fbde37018d9b9e92a552e5fd13
tree5fef7216ef39d66684754e4aadf368ce9adfd72e
parent122a21d11cbfda6d1e33cbc8ae9e4c4ee2f1886e
readahead: convert filemap invocations

Convert filemap reads to use on-demand readahead.

The new call scheme is to
- call readahead on non-cached page
- call readahead on look-ahead page
- update prev_index when finished with the read request

Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
Cc: Steven Pratt <slpratt@austin.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/filemap.c