Patchwork [3/3] UBI: Dispatch update notification if the volume is updated

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Submitter Ezequiel Garcia
Date Aug. 29, 2014, 9:42 p.m.
Message ID <1409348550-27768-4-git-send-email-ezequiel.garcia@free-electrons.com>
Download mbox | patch
Permalink /patch/384397/
State New
Headers show

Comments

Ezequiel Garcia - Aug. 29, 2014, 9:42 p.m.
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>
---
 drivers/mtd/ubi/cdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 7646220..20aeb27 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -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;
 	}