diff options
| author |   Tejun Heo <tj@kernel.org> | 2014-04-09 11:07:30 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-25 11:43:31 -0700 |
| commit | 7d568a8383bbb9c1f5167781075906acb2bb1550 (patch) | |
| tree | f25a2d70ce8851e991a53ed6391c899320f097a6 /include/linux/kernfs.h | |
| parent | Linux 3.15-rc2 (diff) | |
| download | linux-dev-7d568a8383bbb9c1f5167781075906acb2bb1550.tar.xz linux-dev-7d568a8383bbb9c1f5167781075906acb2bb1550.zip | |
kernfs: implement kernfs_root->supers list
Currently, there's no way to find out which super_blocks are
associated with a given kernfs_root. Let's implement it - the planned
inotify extension to kernfs_notify() needs it.
Make kernfs_super_info point back to the super_block and chain it at
kernfs_root->supers.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/kernfs.h')
| -rw-r--r-- | include/linux/kernfs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index b0122dc6f96a..589318b73e61 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -144,6 +144,10 @@ struct kernfs_root { /* private fields, do not use outside kernfs proper */ struct ida ino_ida; struct kernfs_syscall_ops *syscall_ops; + + /* list of kernfs_super_info of this root, protected by kernfs_mutex */ + struct list_head supers; + wait_queue_head_t deactivate_waitq; }; |