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-rw-r--r--Documentation/ABI/testing/sysfs-class-bdi4
-rw-r--r--fs/fuse/inode.c7
2 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-bdi b/Documentation/ABI/testing/sysfs-class-bdi
index 5ac1e01bbd4..5f500977b42 100644
--- a/Documentation/ABI/testing/sysfs-class-bdi
+++ b/Documentation/ABI/testing/sysfs-class-bdi
@@ -14,6 +14,10 @@ MAJOR:MINOR
non-block filesystems which provide their own BDI, such as NFS
and FUSE.
+MAJOR:MINOR-fuseblk
+
+ Value of st_dev on fuseblk filesystems.
+
default
The default backing dev, used for non-block device backed
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index fb77e096213..43e99513334 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -488,7 +488,12 @@ static struct fuse_conn *new_conn(struct super_block *sb)
err = bdi_init(&fc->bdi);
if (err)
goto error_kfree;
- err = bdi_register_dev(&fc->bdi, fc->dev);
+ if (sb->s_bdev) {
+ err = bdi_register(&fc->bdi, NULL, "%u:%u-fuseblk",
+ MAJOR(fc->dev), MINOR(fc->dev));
+ } else {
+ err = bdi_register_dev(&fc->bdi, fc->dev);
+ }
if (err)
goto error_bdi_destroy;
/*