On Wed, 9 May 2007 16:38:35 -0700 Kristen Carlson Accardi <[EMAIL PROTECTED]> wrote:
> Send an uevent to user space to indicate that a media change event has > occurred. > > Signed-off-by: Kristen Carlson Accardi <[EMAIL PROTECTED]> > > Index: 2.6-git/block/genhd.c > =================================================================== > --- 2.6-git.orig/block/genhd.c > +++ 2.6-git/block/genhd.c > @@ -643,6 +643,27 @@ struct seq_operations diskstats_op = { > .show = diskstats_show > }; > > +static void media_change_notify_thread(struct work_struct *work) > +{ > + struct gendisk *gd = container_of(work, struct gendisk, async_notify); > + char event[] = "MEDIA_CHANGE=1"; > + char *envp[] = { event, NULL }; > + > + /* > + * set enviroment vars to indicate which event this is for > + * so that user space will know to go check the media status. > + */ > + kobject_uevent_env(&gd->kobj, KOBJ_CHANGE, envp); > + put_device(gd->driverfs_dev); > +} > + > +void genhd_media_change_notify(struct gendisk *disk) > +{ > + get_device(disk->driverfs_dev); > + schedule_work(&disk->async_notify); > +} > +EXPORT_SYMBOL_GPL(genhd_media_change_notify); > + > struct gendisk *alloc_disk(int minors) > { > return alloc_disk_node(minors, -1); > @@ -672,6 +693,8 @@ struct gendisk *alloc_disk_node(int mino > kobj_set_kset_s(disk,block_subsys); > kobject_init(&disk->kobj); > rand_initialize_disk(disk); > + INIT_WORK(&disk->async_notify, > + media_change_notify_thread); > } > return disk; Why does this do a schedule_work() rather than calling kobject_uevent_env() directly? - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html