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| author | Milan Broz <mbroz@redhat.com> | 2009-01-06 04:05:12 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-01-06 04:05:12 +0100 |
| commit | 784aae735d9b0bba3f8b9faef4c8b30df3bf0128 (patch) | |
| tree | 7e2e956c395b27f63569d7a6adc1098f116cc3a4 /drivers/md/Makefile | |
| parent | dm table: rework reference counting (diff) | |
| download | linux-784aae735d9b0bba3f8b9faef4c8b30df3bf0128.tar.xz linux-784aae735d9b0bba3f8b9faef4c8b30df3bf0128.zip | |
dm: add name and uuid to sysfs
Implement simple read-only sysfs entry for device-mapper block device.
This patch adds a simple sysfs directory named "dm" under block device
properties and implements
- name attribute (string containing mapped device name)
- uuid attribute (string containing UUID, or empty string if not set)
The kobject is embedded in mapped_device struct, so no additional
memory allocation is needed for initializing sysfs entry.
During the processing of sysfs attribute we need to lock mapped device
which is done by a new function dm_get_from_kobj, which returns the md
associated with kobject and increases the usage count.
Each 'show attribute' function is responsible for its own locking.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/Makefile')
| -rw-r--r-- | drivers/md/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/Makefile b/drivers/md/Makefile index 1c615804ea76..63f0ae94415d 100644 --- a/drivers/md/Makefile +++ b/drivers/md/Makefile @@ -3,7 +3,7 @@ # dm-mod-objs := dm.o dm-table.o dm-target.o dm-linear.o dm-stripe.o \ - dm-ioctl.o dm-io.o dm-kcopyd.o + dm-ioctl.o dm-io.o dm-kcopyd.o dm-sysfs.o dm-multipath-objs := dm-path-selector.o dm-mpath.o dm-snapshot-objs := dm-snap.o dm-exception-store.o dm-mirror-objs := dm-raid1.o |