提交 1375590d 编写于 作者: T Tao Chen 提交者: Konrad Rzeszutek Wilk

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: NTao Chen <boby.chen@huawei.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: NRoger Pau Monné <roger.pau@citrix.com>
上级 de9ad6d4
...@@ -21,6 +21,9 @@ ...@@ -21,6 +21,9 @@
#include <xen/grant_table.h> #include <xen/grant_table.h>
#include "common.h" #include "common.h"
/* Enlarge the array size in order to fully show blkback name. */
#define BLKBACK_NAME_LEN (20)
struct backend_info { struct backend_info {
struct xenbus_device *dev; struct xenbus_device *dev;
struct xen_blkif *blkif; struct xen_blkif *blkif;
...@@ -70,7 +73,7 @@ static int blkback_name(struct xen_blkif *blkif, char *buf) ...@@ -70,7 +73,7 @@ static int blkback_name(struct xen_blkif *blkif, char *buf)
else else
devname = devpath; 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); kfree(devpath);
return 0; return 0;
...@@ -79,7 +82,7 @@ static int blkback_name(struct xen_blkif *blkif, char *buf) ...@@ -79,7 +82,7 @@ static int blkback_name(struct xen_blkif *blkif, char *buf)
static void xen_update_blkif_status(struct xen_blkif *blkif) static void xen_update_blkif_status(struct xen_blkif *blkif)
{ {
int err; int err;
char name[TASK_COMM_LEN]; char name[BLKBACK_NAME_LEN];
/* Not ready to connect? */ /* Not ready to connect? */
if (!blkif->irq || !blkif->vbd.bdev) if (!blkif->irq || !blkif->vbd.bdev)
......
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