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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2016-08-02 23:05:06 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-03 01:35:17 +0200
commit6625689e159fa1d43572ee113713ab23bec03131 (patch)
tree344f75d3ff037dd65e07eb96a47214ed3cc867f1 /fs/nilfs2/the_nilfs.c
parentnilfs2: add nilfs_msg() message interface (diff)
downloadlinux-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.c')
-rw-r--r--fs/nilfs2/the_nilfs.c7
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);