Merge tag 'upstream-4.18-rc1' of git://git.infradead.org/linux-ubifs

Pull UBI and UBIFS updates from Richard Weinberger:

 - the UBI on-disk format header file is now dual licensed

 - new way to detect Fastmap problems during runtime

 - bugfix for Fastmap

 - minor updates for UBIFS (spelling, comments, vm_fault_t, ...)

* tag 'upstream-4.18-rc1' of git://git.infradead.org/linux-ubifs:
  mtd: ubi: Update ubi-media.h to dual license
  ubi: fastmap: Detect EBA mismatches on-the-fly
  ubi: fastmap: Check each mapping only once
  ubi: fastmap: Correctly handle interrupted erasures in EBA
  ubi: fastmap: Cancel work upon detach
  ubifs: lpt: Fix wrong pnode number range in comment
  ubifs: gc: Fix typo
  ubifs: log: Some spelling fixes
  ubifs: Spelling fix someting -> something
  ubifs: journal: Remove wrong comment
  ubifs: remove set but never used variable
  ubifs, xattr: remove misguided quota flags
  fs: ubifs: Adding new return type vm_fault_t

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