@@ -1394,7 +1394,7 @@ int ubi_attach(struct ubi_device *ubi, int force_scan)
if (!ai)
return -ENOMEM;
- if (force_scan || ubi->fm_disabled)
+ if (force_scan)
err = scan_all(ubi, ai, 0);
else {
err = scan_fast(ubi, ai);
@@ -67,6 +67,8 @@ static int __initdata mtd_devs;
/* MTD devices specification parameters */
static struct mtd_dev_param __initdata mtd_dev_param[UBI_MAX_DEVICES];
+/* UBI module parameter to enable fastmap automatically on non-fastmap images */
+static bool fm_auto;
/* Root UBI "class" object (corresponds to '/<sysfs>/class/ubi/') */
struct class *ubi_class;
@@ -899,7 +901,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
ubi->fm_pool.max_size = UBI_FM_MIN_POOL_SIZE;
ubi->fm_wl_pool.max_size = UBI_FM_WL_POOL_SIZE;
- ubi->fm_disabled = 1;
+ ubi->fm_disabled = !fm_auto;
ubi_msg("default fastmap pool size: %d", ubi->fm_pool.max_size);
ubi_msg("default fastmap WL pool size: %d", ubi->fm_wl_pool.max_size);
@@ -1392,6 +1394,10 @@ MODULE_PARM_DESC(mtd, "MTD devices to attach. Parameter format: "
"with name \"content\" using VID header offset 1984, and "
"MTD device number 4 with default VID header offset.");
+module_param(fm_auto, bool, 000);
+MODULE_PARM_DESC(fm_auto, "Set this parameter to enable fastmap automatically "
+ "on images without a fastmap.");
+
MODULE_VERSION(__stringify(UBI_VERSION));
MODULE_DESCRIPTION("UBI - Unsorted Block Images");
MODULE_AUTHOR("Artem Bityutskiy");
@@ -1044,8 +1044,10 @@ int ubi_scan_fastmap(struct ubi_device *ubi, struct ubi_attach_info *ai,
ubi->fm = fm;
ubi->fm_pool.max_size = ubi->fm->max_pool_size;
ubi->fm_wl_pool.max_size = ubi->fm->max_wl_pool_size;
+ ubi_msg("attached by fastmap");
ubi_msg("fastmap pool size: %d", ubi->fm_pool.max_size);
ubi_msg("fastmap WL pool size: %d", ubi->fm_wl_pool.max_size);
+ ubi->fm_disabled = 0;
free_hdr:
ubi_free_vid_hdr(ubi, vh);
The new parameter, ubi.fm_auto is per default 0. If you attach an old image without a fastmap installed UBI will not install a fastmap an work like in the old days. But attaching by fastmap will work too if you attach a new image. Of course in this case the fastmap will also get updated. Is ubi.fm_auto set to 1 UBI automatically installs a fastmap on old images. This can be used to convert old images to have fastmap support. Signed-off-by: Richard Weinberger <richard@nod.at> --- drivers/mtd/ubi/attach.c | 2 +- drivers/mtd/ubi/build.c | 8 +++++++- drivers/mtd/ubi/fastmap.c | 2 ++ 3 files changed, 10 insertions(+), 2 deletions(-)