mm: bdi: expose the BDI object in sysfs for FUSE

Register FUSE's backing_dev_info under sysfs with the name "fuse-MAJOR:MINOR"

Make the fuse control filesystem use s_dev instead of a fuse specific ID.
This makes it easier to match directories under /sys/fs/fuse/connections/ with
directories under /sys/class/bdi, and with actual mounts.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index 105d4a271e07..4f3cab321415 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -117,7 +117,7 @@ int fuse_ctl_add_conn(struct fuse_conn *fc)
 
         parent = fuse_control_sb->s_root;
         inc_nlink(parent->d_inode);
-        sprintf(name, "%llu", (unsigned long long) fc->id);
+        sprintf(name, "%u", fc->dev);
         parent = fuse_ctl_add_dentry(parent, fc, name, S_IFDIR | 0500, 2,
                                      &simple_dir_inode_operations,
                                      &simple_dir_operations);