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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-03-13 23:43:23 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-03-24 15:04:35 +0100 |
| commit | 4dae76705fc8f9854bb732f9944e7ff9ba7a8e9f (patch) | |
| tree | e08b16f2ade9d05ac84e7ed8a36a10269dda4569 /drivers/block/xen-blkback/common.h | |
| parent | cciss: Fix scsi tape io with more than 255 scatter gather elements (diff) | |
| download | linux-4dae76705fc8f9854bb732f9944e7ff9ba7a8e9f.tar.xz linux-4dae76705fc8f9854bb732f9944e7ff9ba7a8e9f.zip | |
xen/blkback: Squash the discard support for 'file' and 'phy' type.
The only reason for the distinction was for the special case of
'file' (which is assumed to be loopback device), was to reach inside
the loopback device, find the underlaying file, and call fallocate on it.
Fortunately "xen-blkback: convert hole punching to discard request on
loop devices" removes that use-case and we now based the discard
support based on blk_queue_discard(q) and extract all appropriate
parameters from the 'struct request_queue'.
CC: Li Dongyang <lidongyang@novell.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
[v1: Dropping pointless initializer and keeping blank line]
[v2: Remove the kfree as it is not used anymore]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkback/common.h')
| -rw-r--r-- | drivers/block/xen-blkback/common.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index d0ee7edc9be8..773cf27dc23f 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -146,11 +146,6 @@ enum blkif_protocol { BLKIF_PROTOCOL_X86_64 = 3, }; -enum blkif_backend_type { - BLKIF_BACKEND_PHY = 1, - BLKIF_BACKEND_FILE = 2, -}; - struct xen_vbd { /* What the domain refers to this vbd as. */ blkif_vdev_t handle; @@ -177,7 +172,6 @@ struct xen_blkif { unsigned int irq; /* Comms information. */ enum blkif_protocol blk_protocol; - enum blkif_backend_type blk_backend_type; union blkif_back_rings blk_rings; void *blk_ring; /* The VBD attached to this interface. */ |