nilfs2: get rid of bdi from nilfs object
Nilfs now can use sb->s_bdi to get backing_dev_info, so we use it
instead of ns_bdi on the nilfs object and remove ns_bdi.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index d60fdb0..39a5b84 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -457,7 +457,7 @@
struct nilfs_shadow_map *shadow)
{
struct nilfs_mdt_info *mi = NILFS_MDT(inode);
- struct backing_dev_info *bdi = NILFS_I_NILFS(inode)->ns_bdi;
+ struct backing_dev_info *bdi = inode->i_sb->s_bdi;
INIT_LIST_HEAD(&shadow->frozen_buffers);
nilfs_mapping_init_once(&shadow->frozen_data);
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 4588fb9..0f83e93 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -371,7 +371,8 @@
struct bio *bio = wi->bio;
int err;
- if (segbuf->sb_nbio > 0 && bdi_write_congested(wi->nilfs->ns_bdi)) {
+ if (segbuf->sb_nbio > 0 &&
+ bdi_write_congested(segbuf->sb_super->s_bdi)) {
wait_for_completion(&segbuf->sb_bio_event);
segbuf->sb_nbio--;
if (unlikely(atomic_read(&segbuf->sb_err))) {
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 92e8c76..8e77016 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -910,6 +910,7 @@
struct the_nilfs *nilfs;
struct nilfs_sb_info *sbi;
struct nilfs_root *fsroot;
+ struct backing_dev_info *bdi;
__u64 cno;
int err;
@@ -948,7 +949,9 @@
sb->s_export_op = &nilfs_export_ops;
sb->s_root = NULL;
sb->s_time_gran = 1;
- sb->s_bdi = nilfs->ns_bdi;
+
+ bdi = sb->s_bdev->bd_inode->i_mapping->backing_dev_info;
+ sb->s_bdi = bdi ? : &default_backing_dev_info;
err = load_nilfs(nilfs, sbi);
if (err)
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index a94aa57..bd02b61 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -535,7 +535,6 @@
{
struct super_block *sb = sbi->s_super;
struct nilfs_super_block *sbp;
- struct backing_dev_info *bdi;
int blocksize;
int err;
@@ -598,9 +597,6 @@
nilfs->ns_mount_state = le16_to_cpu(sbp->s_state);
- bdi = nilfs->ns_bdev->bd_inode->i_mapping->backing_dev_info;
- nilfs->ns_bdi = bdi ? : &default_backing_dev_info;
-
err = nilfs_store_log_cursor(nilfs, sbp);
if (err)
goto failed_sbh;
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index bbbc1c7..69226e1 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -47,7 +47,6 @@
* struct the_nilfs - struct to supervise multiple nilfs mount points
* @ns_flags: flags
* @ns_bdev: block device
- * @ns_bdi: backing dev info
* @ns_sem: semaphore for shared states
* @ns_sbh: buffer heads of on-disk super blocks
* @ns_sbp: pointers to super block data
@@ -90,7 +89,6 @@
unsigned long ns_flags;
struct block_device *ns_bdev;
- struct backing_dev_info *ns_bdi;
struct rw_semaphore ns_sem;
/*