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| author | Tejun Heo <tj@kernel.org> | 2010-05-15 20:09:32 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-06-02 13:50:04 -0400 |
| commit | 72ec24bd7725545bc149d80cbd21a7578d9aa206 (patch) | |
| tree | a67f8fdda3b0dd69bb45ca19508b68431f1b69d8 /include | |
| parent | ed4e2f801cf1484a68c4b41878353f26e6554c6a (diff) | |
| download | lwn-72ec24bd7725545bc149d80cbd21a7578d9aa206.tar.gz lwn-72ec24bd7725545bc149d80cbd21a7578d9aa206.zip | |
SCSI: implement sd_unlock_native_capacity()
Implement sd_unlock_native_capacity() method which calls into
hostt->unlock_native_capacity() if implemented. This will be invoked
by block layer if partitions extend beyond the end of the device and
can be used to implement, for example, on-demand ATA host protected
area unlocking.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/scsi/scsi_host.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index c50a97fc76f9..b7bdecb7b76e 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -327,6 +327,14 @@ struct scsi_host_template { sector_t, int []); /* + * This function is called when one or more partitions on the + * device reach beyond the end of the device. + * + * Status: OPTIONAL + */ + void (*unlock_native_capacity)(struct scsi_device *); + + /* * Can be used to export driver statistics and other infos to the * world outside the kernel ie. userspace and it also provides an * interface to feed the driver with information. |