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UBI: Dispatch update notification if the volume is updated 

The UBI_IOCVOLUP ioctl is used to start an update and also to
truncate a volume. In the first case, a "volume updated" notification
is dispatched when the update is done.

This commit adds the "volume updated" notification to be also sent when
the volume is truncated. This is required for UBI block and gluebi to get
notified about the new volume size.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: stable@vger.kernel.org # v3.15+
This commit is contained in:
Ezequiel Garcia 2014-08-29 18:42:30 -03:00 committed by Artem Bityutskiy
parent 06d9c2905f
commit fda322a1b3
1 changed files with 3 additions and 1 deletions
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4
drivers/mtd/ubi/cdev.c
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@ -425,8 +425,10 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd,
break;
err = ubi_start_update(ubi, vol, bytes);
if (bytes == 0)
if (bytes == 0) {
ubi_volume_notify(ubi, vol, UBI_VOLUME_UPDATED);
revoke_exclusive(desc, UBI_READWRITE);
}
break;
}