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| author |   Tao Chen <boby.chen@huawei.com> | 2015-03-27 13:15:54 +0000 |
|---|---|---|
| committer |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2015-04-07 10:32:42 -0400 |
| commit | 1375590d3e18b4d87d2f768178e93a0c8644a7dc (patch) | |
| tree | d32405daeee72d703e42f906c9805808039dcd3f /drivers/block/xen-blkback | |
| parent | nbd: Return error pointer directly (diff) | |
| download | linux-dev-1375590d3e18b4d87d2f768178e93a0c8644a7dc.tar.xz linux-dev-1375590d3e18b4d87d2f768178e93a0c8644a7dc.zip | |
xen-blkback: enlarge the array size of blkback name
The blkback name is like blkback.domid.xvd[a-z], if domid has four digits
(means larger than 1000), then the backmost xvd wouldn't be fully shown.
Define a BLKBACK_NAME_LEN macro to be 20, enlarge the array size of
blkback name, so it will be fully shown in any case.
Signed-off-by: Tao Chen <boby.chen@huawei.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Diffstat (limited to 'drivers/block/xen-blkback')
| -rw-r--r-- | drivers/block/xen-blkback/xenbus.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index e3afe97280b1..b33083e67f8c 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -21,6 +21,9 @@ #include <xen/grant_table.h> #include "common.h" +/* Enlarge the array size in order to fully show blkback name. */ +#define BLKBACK_NAME_LEN (20) + struct backend_info { struct xenbus_device *dev; struct xen_blkif *blkif; @@ -70,7 +73,7 @@ static int blkback_name(struct xen_blkif *blkif, char *buf) else devname = devpath; - snprintf(buf, TASK_COMM_LEN, "blkback.%d.%s", blkif->domid, devname); + snprintf(buf, BLKBACK_NAME_LEN, "blkback.%d.%s", blkif->domid, devname); kfree(devpath); return 0; @@ -79,7 +82,7 @@ static int blkback_name(struct xen_blkif *blkif, char *buf) static void xen_update_blkif_status(struct xen_blkif *blkif) { int err; - char name[TASK_COMM_LEN]; + char name[BLKBACK_NAME_LEN]; /* Not ready to connect? */ if (!blkif->irq || !blkif->vbd.bdev) |