The patch titled
partitions: let partitions inherit policy from disk
has been added to the -mm tree. Its filename is
partitions-let-partitions-inherit-policy-from-disk.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: partitions: let partitions inherit policy from disk
From: Peter Oberparleiter <peter.oberparleiter@xxxxxxxxxx>
Change the partition code in fs/partitions/check.c to initialize a newly
detected partition's policy field with that of the containing block device
(see patch below).
My reasoning is that function set_disk_ro() in block/genhd.c modifies the
policy field (read-only indicator) of a disk and all contained partitions.
When a partition is detected after the call to set_disk_ro(), the policy
field of this partition will currently not inherit the disk's policy field.
This behavior poses a problem in cases where a block device can be
'logically de- and reactivated' like e.g. the s390 DASD driver because
partition detection may run after the policy field has been modified.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@xxxxxxxxxx>
Acked-by: Al Viro <viro@xxxxxxxxxxxxxxxx>
Makes-sense-to: Jens Axboe <axboe@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/partitions/check.c | 1 +
1 file changed, 1 insertion(+)
diff -puN fs/partitions/check.c~partitions-let-partitions-inherit-policy-from-disk fs/partitions/check.c
--- a/fs/partitions/check.c~partitions-let-partitions-inherit-policy-from-disk
+++ a/fs/partitions/check.c
@@ -348,6 +348,7 @@ void add_partition(struct gendisk *disk,
p->start_sect = start;
p->nr_sects = len;
p->partno = part;
+ p->policy = disk->policy;
devfs_mk_bdev(MKDEV(disk->major, disk->first_minor + part),
S_IFBLK|S_IRUSR|S_IWUSR,
_
Patches currently in -mm which might be from peter.oberparleiter@xxxxxxxxxx are
origin.patch
partitions-let-partitions-inherit-policy-from-disk.patch
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