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authorMark Fasheh <mark.fasheh@oracle.com>2007-02-16 11:46:50 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2007-04-26 15:02:20 -0700
commit60b11392f1a09433740bda3048202213daa27736 (patch)
treea8687fcb0ce62b130b732d663b54a984564d28b2 /fs/ocfs2/alloc.h
parent25baf2da1473d9dcde1a4c7b0ab26e7d67d9bf62 (diff)
downloadop-kernel-dev-60b11392f1a09433740bda3048202213daa27736.zip
op-kernel-dev-60b11392f1a09433740bda3048202213daa27736.tar.gz
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 <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/alloc.h')
-rw-r--r--fs/ocfs2/alloc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index bff2a16..3cb39cd 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,
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