tree 051234ada89be22abb9ebbe4a541b16ade3bc2ff
parent 900b2b463dc6e65ec474d6880412c63c25b3aea9
author Hans Reiser <reiser@namesys.com> 1136535036 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1136565202 -0800

[PATCH] reiser4: vfs: add truncate_inode_pages_range()

This patch makes truncate_inode_pages_range from truncate_inode_pages.
truncate_inode_pages became a one-liner call to truncate_inode_pages_range.

Reiser4 needs truncate_inode_pages_ranges because it tries to keep
correspondence between existences of metadata pointing to data pages and pages
to which those metadata point to.  So, when metadata of certain part of file
is removed from filesystem tree, only pages of corresponding range are to be
truncated.

(Needed by the madvise(MADV_REMOVE) patch)

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>