From 60b11392f1a09433740bda3048202213daa27736 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Fri, 16 Feb 2007 11:46:50 -0800 Subject: ocfs2: zero tail of sparse files on truncate Since we don't zero on extend anymore, truncate needs to be fixed up to zero the part of a file between i_size and and end of it's cluster. Otherwise a subsequent extend could expose bad data. This introduced a new helper, which can be used in ocfs2_write(). Signed-off-by: Mark Fasheh --- fs/ocfs2/alloc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ocfs2/alloc.h') diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h index bff2a162b03..3cb39cd5e47 100644 --- a/fs/ocfs2/alloc.h +++ b/fs/ocfs2/alloc.h @@ -71,6 +71,8 @@ struct ocfs2_truncate_context { struct buffer_head *tc_last_eb_bh; }; +int ocfs2_zero_tail_for_truncate(struct inode *inode, handle_t *handle, + u64 new_i_size); int ocfs2_prepare_truncate(struct ocfs2_super *osb, struct inode *inode, struct buffer_head *fe_bh, -- cgit v1.2.3