nilfs2: move log writer onto nilfs object
Log writer is held by the nilfs_sb_info structure. This moves it into
nilfs object and replaces all uses of NILFS_SC() accessor.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 3ecc968f..10521b9 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -33,6 +33,8 @@
#include <linux/slab.h>
#include "sb.h"
+struct nilfs_sc_info;
+
/* the_nilfs struct */
enum {
THE_NILFS_INIT = 0, /* Information from super_block is set */
@@ -65,7 +67,8 @@
* @ns_last_cno: checkpoint number of the latest segment
* @ns_prot_seq: least sequence number of segments which must not be reclaimed
* @ns_prev_seq: base sequence number used to decide if advance log cursor
- * @ns_segctor_sem: segment constructor semaphore
+ * @ns_writer: log writer
+ * @ns_segctor_sem: semaphore protecting log write
* @ns_dat: DAT file inode
* @ns_cpfile: checkpoint file inode
* @ns_sufile: segusage file inode
@@ -140,6 +143,7 @@
u64 ns_prot_seq;
u64 ns_prev_seq;
+ struct nilfs_sc_info *ns_writer;
struct rw_semaphore ns_segctor_sem;
/*