On Friday January 13, [email protected] wrote:
> Hello kernel people,
>
> the attached oops happens when I try to create an md-array on an aoe device
> in conjunction with vanilla Kernel 2.6.15+drbd+aoe:
>
> --cut--
> kernel BUG at fs/sysfs/symlink.c:87!
Thanks for the report.
This should be fixed by the following patch.
NeilBrown
----------------------
Remove slashed from disk names when creation dev names in sysfs
e.g. The sx8 driver uses names like sx8/0.
This would make a md component dev name like
/sys/block/md0/md/dev-sx8/0
which is no allowed. So we change the '/' to '!' just like
fs/partitions/check.c(register_disk) does.
Signed-off-by: Neil Brown <[email protected]>
### Diffstat output
./drivers/md/md.c | 3 +++
1 file changed, 3 insertions(+)
diff ./drivers/md/md.c~current~ ./drivers/md/md.c
--- ./drivers/md/md.c~current~ 2006-01-12 11:18:52.000000000 +1100
+++ ./drivers/md/md.c 2006-01-12 09:44:39.000000000 +1100
@@ -1238,6 +1238,7 @@ static int bind_rdev_to_array(mdk_rdev_t
mdk_rdev_t *same_pdev;
char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE];
struct kobject *ko;
+ char *s;
if (rdev->mddev) {
MD_BUG();
@@ -1277,6 +1278,8 @@ static int bind_rdev_to_array(mdk_rdev_t
bdevname(rdev->bdev,b);
if (kobject_set_name(&rdev->kobj, "dev-%s", b) < 0)
return -ENOMEM;
+ while ( (s=strchr(rdev->kobj.k_name, '/')) != NULL)
+ *s = '!';
list_add(&rdev->same_set, &mddev->disks);
rdev->mddev = mddev;
-
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