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authorTao Ma <tao.ma@oracle.com>2009-08-26 09:47:28 +0800
committerJoel Becker <joel.becker@oracle.com>2009-09-22 20:09:38 -0700
commit37f8a2bfaa8364dd3644cccee8824bb8f5e409a5 (patch)
treeab3083179c621c3e8d0be3980aaed96528f90599 /fs/ocfs2/refcounttree.h
parent293b2f70b4a16a1ca91efd28ef3d6634262c6887 (diff)
ocfs2: CoW a reflinked cluster when it is truncated.
When we truncate a file to a specific size which resides in a reflinked cluster, we need to CoW it since ocfs2_zero_range_for_truncate will zero the space after the size(just another type of write). So we add a "max_cpos" in ocfs2_refcount_cow so that it will stop when it hit the max cluster offset. Signed-off-by: Tao Ma <tao.ma@oracle.com>
Diffstat (limited to 'fs/ocfs2/refcounttree.h')
-rw-r--r--fs/ocfs2/refcounttree.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h
index a8c15b0b230..356f99c8563 100644
--- a/fs/ocfs2/refcounttree.h
+++ b/fs/ocfs2/refcounttree.h
@@ -53,5 +53,5 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
int *credits,
struct ocfs2_alloc_context **meta_ac);
int ocfs2_refcount_cow(struct inode *inode, struct buffer_head *di_bh,
- u32 cpos, u32 write_len);
+ u32 cpos, u32 write_len, u32 max_cpos);
#endif /* OCFS2_REFCOUNTTREE_H */