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authorMiklos Szeredi <mszeredi@suse.cz>2008-05-23 13:04:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-24 09:56:07 -0700
commit03fb0bce01490c9bdedad861962c76f987531014 (patch)
tree882f233f910b40042c9ce7f026e373e797647e04 /Documentation
parent42172d751b4596b8ca4346a1c251b5f1c661ab0c (diff)
downloadlinux-linaro-03fb0bce01490c9bdedad861962c76f987531014.tar.gz
fuse: fix bdi naming conflict
Fuse allocates a separate bdi for each filesystem, and registers them in sysfs with "MAJOR:MINOR" of sb->s_dev (st_dev). This works fine for anon devices normally used by fuse, but can conflict with an already registered BDI for "fuseblk" filesystems, where sb->s_dev represents a real block device. In particularl this happens if a non-partitioned device is being mounted. Fix by registering with a different name for "fuseblk" filesystems. Thanks to Ioan Ionita for the bug report. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Reported-by: Ioan Ionita <opslynx@gmail.com> Tested-by: Ioan Ionita <opslynx@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-class-bdi4
1 files changed, 4 insertions, 0 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