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authorHans Reiser <reiser@namesys.com>2006-01-06 00:10:36 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:33:22 -0800
commitd7339071f6a8b50101d7ba327926b770f22d5d8b (patch)
tree051234ada89be22abb9ebbe4a541b16ade3bc2ff /include
parent900b2b463dc6e65ec474d6880412c63c25b3aea9 (diff)
[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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a06a84d347f..92acae9f1f4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -896,6 +896,8 @@ extern unsigned long do_brk(unsigned long, unsigned long);
/* filemap.c */
extern unsigned long page_unuse(struct page *);
extern void truncate_inode_pages(struct address_space *, loff_t);
+extern void truncate_inode_pages_range(struct address_space *,
+ loff_t lstart, loff_t lend);
/* generic vm_area_ops exported for stackable file systems */
extern struct page *filemap_nopage(struct vm_area_struct *, unsigned long, int *);