diff options
| author | San Mehat <san@google.com> | 2009-10-10 09:35:24 -0700 |
|---|---|---|
| committer | Arve Hjønnevåg <arve@android.com> | 2013-07-01 13:40:28 -0700 |
| commit | ac0949ebe87beb9cc06a4f27ab6be1bd39c2fa3c (patch) | |
| tree | cd590fdbacfd8ddf59dd2ec7bf12f298b4ac55de /block/partition-generic.c | |
| parent | d590b5b6953304edb000de90335a3b4838b2482c (diff) | |
block: genhd: Add disk/partition specific uevent callbacks for partition info
For disk devices, a new uevent parameter 'NPARTS' specifies the number
of partitions detected by the kernel. Partition devices get 'PARTN' which
specifies the partitions index in the table, and 'PARTNAME', which
specifies PARTNAME specifices the partition name of a partition device
Signed-off-by: Dima Zavin <dima@android.com>
Diffstat (limited to 'block/partition-generic.c')
| -rw-r--r-- | block/partition-generic.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/block/partition-generic.c b/block/partition-generic.c index 789cdea05893..c7942acf1379 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -216,10 +216,21 @@ static void part_release(struct device *dev) kfree(p); } +static int part_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct hd_struct *part = dev_to_part(dev); + + add_uevent_var(env, "PARTN=%u", part->partno); + if (part->info && part->info->volname[0]) + add_uevent_var(env, "PARTNAME=%s", part->info->volname); + return 0; +} + struct device_type part_type = { .name = "partition", .groups = part_attr_groups, .release = part_release, + .uevent = part_uevent, }; static void delete_partition_rcu_cb(struct rcu_head *head) |