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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-12-17 15:42:57 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-12-26 19:15:16 +0200
commitd05c77a816974c09f8c7e8f48e5b9f7b59dafdf3 (patch)
tree6263ef3ad76c654e9d2635e5145f15c2b517edeb /drivers/mtd/ubi/kapi.c
parentdb6e5770ef0ab351a403ac26e1ab1309e58f15d7 (diff)
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UBI: introduce volume refcounting
Add ref_count field to UBI volumes and remove weired "vol->removed" field. This way things are better understandable and we do not have to do whold show_attr operation under spinlock. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/kapi.c')
-rw-r--r--drivers/mtd/ubi/kapi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index 9c283768319..780c273ff45 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -152,6 +152,7 @@ struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode)
break;
}
get_device(&vol->dev);
+ vol->ref_count += 1;
spin_unlock(&ubi->volumes_lock);
desc->vol = vol;
@@ -261,10 +262,11 @@ void ubi_close_volume(struct ubi_volume_desc *desc)
case UBI_EXCLUSIVE:
vol->exclusive = 0;
}
+ vol->ref_count -= 1;
spin_unlock(&vol->ubi->volumes_lock);
- kfree(desc);
put_device(&vol->dev);
+ kfree(desc);
module_put(THIS_MODULE);
}
EXPORT_SYMBOL_GPL(ubi_close_volume);