nilfs2: add sufile function that can modify multiple segment usages
This is a preparation for the later cleanup patch ("nilfs2: remove
list of freeing segments").
This adds nilfs_sufile_updatev() to sufile, which can modify multiple
segment usages at a time.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index a2e2efd..e8e2627 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -46,6 +46,10 @@
ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *,
size_t);
+int nilfs_sufile_updatev(struct inode *, __u64 *, size_t, int, size_t *,
+ void (*dofunc)(struct inode *, __u64,
+ struct buffer_head *,
+ struct buffer_head *));
int nilfs_sufile_update(struct inode *, __u64, int,
void (*dofunc)(struct inode *, __u64,
struct buffer_head *,