tree 8a120a04c46f19229d1cf9b9c546f1818cf84c44
parent 7765ec26ae1c01bb29bedf910e4efcced8cc81d2
author Nick Piggin <npiggin@suse.de> 1192523107 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1192552975 -0700

fs: new cont helpers

Rework the generic block "cont" routines to handle the new aops.  Supporting
cont_prepare_write would take quite a lot of code to support, so remove it
instead (and we later convert all filesystems to use it).

write_begin gets passed AOP_FLAG_CONT_EXPAND when called from
generic_cont_expand, so filesystems can avoid the old hacks they used.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>