[PATCH 2/2] UBI: rename_volumes: Use UBI_METAONLY

From: Richard Weinberger
Date: Wed Oct 29 2014 - 10:52:46 EST


By using UBI_METAONLY in rename_volumes() it is now possible to rename
an UBI volume atomically while it is mounted.
This is useful for firmware upgrades.

Cc: Ezequiel Garcia <ezequiel.garcia@xxxxxxxxxxxxxxxxxx>
Cc: Andrew Murray <amurray@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
drivers/mtd/ubi/cdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 5f01edd..fcdf7b9 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -735,7 +735,7 @@ static int rename_volumes(struct ubi_device *ubi,
goto out_free;
}

- re->desc = ubi_open_volume(ubi->ubi_num, vol_id, UBI_READWRITE);
+ re->desc = ubi_open_volume(ubi->ubi_num, vol_id, UBI_METAONLY);
if (IS_ERR(re->desc)) {
err = PTR_ERR(re->desc);
ubi_err("cannot open volume %d, error %d", vol_id, err);
--
1.8.4.5

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