[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] blkfront: add uevent for size change
On Tue, Apr 11, 2017 at 12:24:09PM -0700, Marc Olson wrote: > 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. Looks pretty reasonable. Could you confirm what the udevadm --monitor --kernel --udev emits when this happens? Thanks! > > Signed-off-by: Marc Olson <marcolso@xxxxxxxxxx> > --- > drivers/block/xen-blkfront.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c > index 2fee2ee..66abf9c 100644 > --- a/drivers/block/xen-blkfront.c > +++ b/drivers/block/xen-blkfront.c > @@ -1996,6 +1996,7 @@ 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; > > switch (info->connected) { > @@ -2012,6 +2013,8 @@ 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: > -- > 2.7.4 > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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