diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2016-08-02 23:05:06 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-03 01:35:17 +0200 |
| commit | 6625689e159fa1d43572ee113713ab23bec03131 (patch) | |
| tree | 344f75d3ff037dd65e07eb96a47214ed3cc867f1 /fs/nilfs2/the_nilfs.h | |
| parent | nilfs2: add nilfs_msg() message interface (diff) | |
| download | linux-6625689e159fa1d43572ee113713ab23bec03131.tar.xz linux-6625689e159fa1d43572ee113713ab23bec03131.zip | |
nilfs2: embed a back pointer to super block instance in nilfs object
Insert a back pointer to super block instance in nilfs object so that
functions of nilfs2 easily refer to the super block instance. This
simplifies replacement of printk() in the successive change.
Link: http://lkml.kernel.org/r/1464875891-5443-4-git-send-email-konishi.ryusuke@lab.ntt.co.jp
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/the_nilfs.h')
| -rw-r--r-- | fs/nilfs2/the_nilfs.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h index 79369fd6b13b..79d1421896d0 100644 --- a/fs/nilfs2/the_nilfs.h +++ b/fs/nilfs2/the_nilfs.h @@ -43,6 +43,7 @@ enum { * struct the_nilfs - struct to supervise multiple nilfs mount points * @ns_flags: flags * @ns_flushed_device: flag indicating if all volatile data was flushed + * @ns_sb: back pointer to super block instance * @ns_bdev: block device * @ns_sem: semaphore for shared states * @ns_snapshot_mount_mutex: mutex to protect snapshot mounts @@ -102,6 +103,7 @@ struct the_nilfs { unsigned long ns_flags; int ns_flushed_device; + struct super_block *ns_sb; struct block_device *ns_bdev; struct rw_semaphore ns_sem; struct mutex ns_snapshot_mount_mutex; @@ -281,7 +283,7 @@ static inline int nilfs_sb_will_flip(struct the_nilfs *nilfs) } void nilfs_set_last_segment(struct the_nilfs *, sector_t, u64, __u64); -struct the_nilfs *alloc_nilfs(struct block_device *bdev); +struct the_nilfs *alloc_nilfs(struct super_block *sb); void destroy_nilfs(struct the_nilfs *nilfs); int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb, char *data); int load_nilfs(struct the_nilfs *nilfs, struct super_block *sb); |