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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-06-07 18:39:33 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-12 03:36:18 +0200 |
| commit | aa7dfb8954ccf49e026ba13d12991a4eb7defb96 (patch) | |
| tree | ff2d6cf81629322906bd0cea1423e9efe516ffee /fs/nilfs2/the_nilfs.h | |
| parent | nilfs2: correct exclusion control in nilfs_remount function (diff) | |
| download | linux-aa7dfb8954ccf49e026ba13d12991a4eb7defb96.tar.xz linux-aa7dfb8954ccf49e026ba13d12991a4eb7defb96.zip | |
nilfs2: get rid of bd_mount_sem use from nilfs
This will remove every bd_mount_sem use in nilfs.
The intended exclusion control was replaced by the previous patch
("nilfs2: correct exclusion control in nilfs_remount function") for
nilfs_remount(), and this patch will replace remains with a new mutex
that this inserts in nilfs object.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nilfs2/the_nilfs.h')
| -rw-r--r-- | fs/nilfs2/the_nilfs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h index d0cf4fb7c9ce..e8adbffc626f 100644 --- a/fs/nilfs2/the_nilfs.h +++ b/fs/nilfs2/the_nilfs.h @@ -49,6 +49,7 @@ enum { * @ns_writer: back pointer to writable nilfs_sb_info * @ns_sem: semaphore for shared states * @ns_super_sem: semaphore for global operations across super block instances + * @ns_mount_mutex: mutex protecting mount process of nilfs * @ns_writer_mutex: mutex protecting ns_writer attach/detach * @ns_writer_refcount: number of referrers on ns_writer * @ns_current: back pointer to current mount @@ -98,6 +99,7 @@ struct the_nilfs { struct nilfs_sb_info *ns_writer; struct rw_semaphore ns_sem; struct rw_semaphore ns_super_sem; + struct mutex ns_mount_mutex; struct mutex ns_writer_mutex; atomic_t ns_writer_refcount; |