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path: root/drivers/mtd/ubi/fastmap.c
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Diffstat (limited to 'drivers/mtd/ubi/fastmap.c')
-rw-r--r--drivers/mtd/ubi/fastmap.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index 91705962ba73..462526a10537 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -1100,6 +1100,26 @@ free_fm_sb:
goto out;
}
+int ubi_fastmap_init_checkmap(struct ubi_volume *vol, int leb_count)
+{
+ struct ubi_device *ubi = vol->ubi;
+
+ if (!ubi->fast_attach)
+ return 0;
+
+ vol->checkmap = kcalloc(BITS_TO_LONGS(leb_count), sizeof(unsigned long),
+ GFP_KERNEL);
+ if (!vol->checkmap)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void ubi_fastmap_destroy_checkmap(struct ubi_volume *vol)
+{
+ kfree(vol->checkmap);
+}
+
/**
* ubi_write_fastmap - writes a fastmap.
* @ubi: UBI device object