[PATCH] remove mount/umount uevents from superblock handling

The names of these events have been confusing from the beginning
on, as they have been more like claim/release events. We needed these
events for noticing HAL if storage devices have been mounted.

Thanks to Al, we have the proper solution now and can poll()
/proc/mounts instead to get notfied about mount tree changes.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/fs/super.c b/fs/super.c
index 6689dded3c8483469b788c6334351ad1a72bccc8..5a347a4f673a4aa19294b8436a25adc71ba07a38 100644 (file)
--- a/fs/super.c
+++ b/fs/super.c
@@ -665,16 +665,6 @@ static int test_bdev_super(struct super_block *s, void *data)
        return (void *)s->s_bdev == data;
 }
 
-static void bdev_uevent(struct block_device *bdev, enum kobject_action action)
-{
-       if (bdev->bd_disk) {
-               if (bdev->bd_part)
-                       kobject_uevent(&bdev->bd_part->kobj, action, NULL);
-               else
-                       kobject_uevent(&bdev->bd_disk->kobj, action, NULL);
-       }
-}
-
 struct super_block *get_sb_bdev(struct file_system_type *fs_type,
        int flags, const char *dev_name, void *data,
        int (*fill_super)(struct super_block *, void *, int))
@@ -717,10 +707,8 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type,
                        up_write(&s->s_umount);
                        deactivate_super(s);
                        s = ERR_PTR(error);
-               } else {
+               } else
                        s->s_flags |= MS_ACTIVE;
-                       bdev_uevent(bdev, KOBJ_MOUNT);
-               }
        }
 
        return s;
@@ -736,7 +724,6 @@ void kill_block_super(struct super_block *sb)
 {
        struct block_device *bdev = sb->s_bdev;
 
-       bdev_uevent(bdev, KOBJ_UMOUNT);
        generic_shutdown_super(sb);
        sync_blockdev(bdev);
        close_bdev_excl(bdev);

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index baf5251d9f63a5d24fc3793b9a42f63162d190fe..e6926b327538dbe9f7868c52c7a4429c36b26fdc 100644 (file)
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -42,10 +42,8 @@ enum kobject_action {
        KOBJ_ADD        = (__force kobject_action_t) 0x01,      /* add event, for hotplug */
        KOBJ_REMOVE     = (__force kobject_action_t) 0x02,      /* remove event, for hotplug */
        KOBJ_CHANGE     = (__force kobject_action_t) 0x03,      /* a sysfs attribute file has changed */
-       KOBJ_MOUNT      = (__force kobject_action_t) 0x04,      /* mount event for block devices */
-       KOBJ_UMOUNT     = (__force kobject_action_t) 0x05,      /* umount event for block devices */
-       KOBJ_OFFLINE    = (__force kobject_action_t) 0x06,      /* offline event for hotplug devices */
-       KOBJ_ONLINE     = (__force kobject_action_t) 0x07,      /* online event for hotplug devices */
+       KOBJ_OFFLINE    = (__force kobject_action_t) 0x04,      /* offline event for hotplug devices */
+       KOBJ_ONLINE     = (__force kobject_action_t) 0x05,      /* online event for hotplug devices */
 };
 
 struct kobject {

diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 1f90eea7eebc1d26d677ec0967ac34747c3d4d41..845bf67d94ca1d0fe4244d5746e8ca6c657b12a8 100644 (file)
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -39,10 +39,6 @@ static char *action_to_string(enum kobject_action action)
                return "remove";
        case KOBJ_CHANGE:
                return "change";
-       case KOBJ_MOUNT:
-               return "mount";
-       case KOBJ_UMOUNT:
-               return "umount";
        case KOBJ_OFFLINE:
                return "offline";
        case KOBJ_ONLINE: