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authorTao Ma <tao.ma@oracle.com>2009-08-25 04:02:48 +0400
committerJoel Becker <joel.becker@oracle.com>2009-09-23 07:09:37 +0400
commit293b2f70b4a16a1ca91efd28ef3d6634262c6887 (patch)
tree4a85078faae7c529fa313d4964e0d6ad0905a612 /fs/ocfs2/file.h
parent6ae23c5555176c5b23480c9c578ff27437085ba5 (diff)
downloadlinux-293b2f70b4a16a1ca91efd28ef3d6634262c6887.tar.xz
ocfs2: Integrate CoW in file write.
When we use mmap, we CoW the refcountd clusters in ocfs2_write_begin_nolock. While for normal file io(including directio), we do CoW in ocfs2_prepare_inode_for_write. Signed-off-by: Tao Ma <tao.ma@oracle.com>
Diffstat (limited to 'fs/ocfs2/file.h')
-rw-r--r--fs/ocfs2/file.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index 172f9fbc9fc7..d66cf4f7c70e 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -69,4 +69,6 @@ int ocfs2_update_inode_atime(struct inode *inode,
int ocfs2_change_file_space(struct file *file, unsigned int cmd,
struct ocfs2_space_resv *sr);
+int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
+ size_t count);
#endif /* OCFS2_FILE_H */