diff options
| author |   Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2016-08-02 14:05:06 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 19:35:17 -0400 |
| commit | 6625689e159fa1d43572ee113713ab23bec03131 (patch) | |
| tree | 344f75d3ff037dd65e07eb96a47214ed3cc867f1 /fs/nilfs2/the_nilfs.c | |
| parent | nilfs2: add nilfs_msg() message interface (diff) | |
| download | linux-dev-6625689e159fa1d43572ee113713ab23bec03131.tar.xz linux-dev-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.c')
| -rw-r--r-- | fs/nilfs2/the_nilfs.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c index e9fd241b9a0a..702115164cf3 100644 --- a/fs/nilfs2/the_nilfs.c +++ b/fs/nilfs2/the_nilfs.c @@ -56,12 +56,12 @@ void nilfs_set_last_segment(struct the_nilfs *nilfs, /** * alloc_nilfs - allocate a nilfs object - * @bdev: block device to which the_nilfs is related + * @sb: super block instance * * Return Value: On success, pointer to the_nilfs is returned. * On error, NULL is returned. */ -struct the_nilfs *alloc_nilfs(struct block_device *bdev) +struct the_nilfs *alloc_nilfs(struct super_block *sb) { struct the_nilfs *nilfs; @@ -69,7 +69,8 @@ struct the_nilfs *alloc_nilfs(struct block_device *bdev) if (!nilfs) return NULL; - nilfs->ns_bdev = bdev; + nilfs->ns_sb = sb; + nilfs->ns_bdev = sb->s_bdev; atomic_set(&nilfs->ns_ndirtyblks, 0); init_rwsem(&nilfs->ns_sem); mutex_init(&nilfs->ns_snapshot_mount_mutex); |