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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-02-15 17:27:00 +0000 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-03-05 15:04:41 -0600 |
| commit | f75580c4afb72c156746b3fc1ec977b1a85d3dee (patch) | |
| tree | b576ddedbb51a0227597920dd849e98487c872fb | |
| parent | 64ba9926759792cf7b95f823402e2781edd1b5d4 (diff) | |
| download | linux-3.10-f75580c4afb72c156746b3fc1ec977b1a85d3dee.tar.gz linux-3.10-f75580c4afb72c156746b3fc1ec977b1a85d3dee.tar.bz2 linux-3.10-f75580c4afb72c156746b3fc1ec977b1a85d3dee.zip | |
net/9p: Add multi channel support.
This is needed for supporting multiple mount points.
We can find out the device names to be used with mount by checking
/sys/devices/virtio-pci/virtio*/device file
if the device file have value 9 then the specific virtio device can
be used for mounting.
ex:
#cat /sys/devices/virtio-pci/virtio1/device
9
now we can mount using
# mount -t 9p -o trans=virtio virtio1 /mnt/
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| -rw-r--r-- | include/linux/virtio_9p.h | 2 | ||||
| -rw-r--r-- | net/9p/trans_virtio.c | 14 |
2 files changed, 9 insertions, 7 deletions
diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h index 095e10d148b..7a615c3f5e3 100644 --- a/include/linux/virtio_9p.h +++ b/include/linux/virtio_9p.h @@ -6,6 +6,6 @@ #include <linux/virtio_config.h> /* Maximum number of virtio channels per partition (1 for now) */ -#define MAX_9P_CHAN 1 +#define MAX_9P_CHAN 10 #endif /* _LINUX_VIRTIO_9P_H */ diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index cb50f4ae5ee..df924e5657d 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -296,13 +296,15 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args) mutex_lock(&virtio_9p_lock); while (index < MAX_9P_CHAN) { - if (chan->initialized && !chan->inuse) { - chan->inuse = true; - break; - } else { - index++; - chan = &channels[index]; + if (chan->initialized && + !strcmp(devname, dev_name(&chan->vdev->dev))) { + if (!chan->inuse) { + chan->inuse = true; + break; + } } + index++; + chan = &channels[index]; } mutex_unlock(&virtio_9p_lock); |