Attachment 312443 Details for Bug 250104 – Patch 3 for blktap statistics v2

[patch] Patch 3 for blktap statistics v2

linux-2.6.18-xen-blktap-stats-14044-3-v2.patch (text/plain), 1.09 KB, created by Chris Lalancette on 2008-07-23 09:56:02 UTC

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Creator: Chris Lalancette

Created: 2008-07-23 09:56:02 UTC

Size: 1.09 KB

patch

obsolete

>diff -urp linux-2.6.18.noarch.patch2/drivers/xen/blktap/xenbus.c linux-2.6.18.noarch.patch3/drivers/xen/blktap/xenbus.c
>--- linux-2.6.18.noarch.patch2/drivers/xen/blktap/xenbus.c	2008-07-17 07:01:02.000000000 -0400
>+++ linux-2.6.18.noarch.patch3/drivers/xen/blktap/xenbus.c	2008-07-17 07:09:53.000000000 -0400
>@@ -47,6 +47,7 @@ struct backend_info
> 	blkif_t *blkif;
> 	struct xenbus_watch backend_watch;
> 	int xenbus_id;
>+	int group_added;
> };
> 
> 
>@@ -150,7 +151,12 @@ static struct attribute_group tapstat_gr
> 
> int xentap_sysfs_addif(struct xenbus_device *dev)
> {
>-	return sysfs_create_group(&dev->dev.kobj, &tapstat_group);
>+	int err;
>+	struct backend_info *be = dev->dev.driver_data;
>+	err = sysfs_create_group(&dev->dev.kobj, &tapstat_group);
>+	if (!err)
>+		be->group_added = 1;
>+	return err;
> }
> 
> void xentap_sysfs_delif(struct xenbus_device *dev)
>@@ -174,7 +180,8 @@ static int blktap_remove(struct xenbus_d
> 		tap_blkif_free(be->blkif);
> 		be->blkif = NULL;
> 	}
>-	xentap_sysfs_delif(be->dev);
>+	if (be->group_added)
>+		xentap_sysfs_delif(be->dev);
> 	kfree(be);
> 	dev->dev.driver_data = NULL;
> 	return 0;

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Attachments on bug 250104: 293926 | 293927 | 293928 | 293929 | 293930 | 293931 | 293932 | 293933 | 293934 | 312441 | 312442 | 312443 | 312444 | 312445 | 312446 | 312447