diff options
| author | Marc Olson <marcolso@amazon.com> | 2017-04-11 12:24:09 -0700 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2017-04-18 11:10:55 -0400 |
| commit | 89515d0255c918e08aa4085956c79bf17615fda5 (patch) | |
| tree | 65d4ebcda8ac1811ed7517db7feff02aac009380 /drivers/block/xen-blkfront.c | |
| parent | a2c97909f97ef32b76e856572fba4f77e1885fe6 (diff) | |
blkfront: add uevent for size change
When a blkfront device is resized from dom0, emit a KOBJ_CHANGE uevent to
notify the guest about the change. This allows for custom udev rules, such
as automatically resizing a filesystem, when an event occurs.
With this patch you get these udev
KERNEL[577.206230] change /devices/vbd-51728/block/xvdb (block)
UDEV [577.226218] change /devices/vbd-51728/block/xvdb (block)
Signed-off-by: Marc Olson <marcolso@amazon.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkfront.c')
| -rw-r--r-- | drivers/block/xen-blkfront.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index d137ef8a72be..abed296ce605 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2345,6 +2345,7 @@ static void blkfront_connect(struct blkfront_info *info) unsigned long sector_size; unsigned int physical_sector_size; unsigned int binfo; + char *envp[] = { "RESIZE=1", NULL }; int err, i; switch (info->connected) { @@ -2361,6 +2362,8 @@ static void blkfront_connect(struct blkfront_info *info) sectors); set_capacity(info->gd, sectors); revalidate_disk(info->gd); + kobject_uevent_env(&disk_to_dev(info->gd)->kobj, + KOBJ_CHANGE, envp); return; case BLKIF_STATE_SUSPENDED: |