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nilfs2: get rid of bdi from nilfs object

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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>
This commit is contained in:
Ryusuke Konishi 2010-10-07 14:19:48 +09:00
parent c486f3895d
commit 026a7d63d5
5 changed files with 7 additions and 9 deletions
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2
fs/nilfs2/mdt.c
View File

@ -457,7 +457,7 @@ int nilfs_mdt_setup_shadow_map(struct inode *inode,
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);

3
fs/nilfs2/segbuf.c
View File

@ -371,7 +371,8 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf,
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))) {

5
fs/nilfs2/super.c
View File

@ -910,6 +910,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
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 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
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)

4
fs/nilfs2/the_nilfs.c
View File

@ -535,7 +535,6 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
{
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 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
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;

2
fs/nilfs2/the_nilfs.h
View File

@ -47,7 +47,6 @@ enum {
* 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 @@ struct the_nilfs {
unsigned long ns_flags;
struct block_device *ns_bdev;
struct backing_dev_info *ns_bdi;
struct rw_semaphore ns_sem;
/*