Messages in this thread Patch in this message | | | From | Richard Weinberger <> | Subject | [PATCH 14/15] UBI: Fastmap: Improve invalidate_fastmap() | Date | Thu, 21 Jun 2012 23:50:07 +0200 |
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Signed-off-by: Richard Weinberger <richard@nod.at> --- drivers/mtd/ubi/fastmap.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c index 68be3d5..582f5ee 100644 --- a/drivers/mtd/ubi/fastmap.c +++ b/drivers/mtd/ubi/fastmap.c @@ -1332,8 +1332,21 @@ static int invalidate_fastmap(struct ubi_device *ubi, struct ubi_fastmap_layout *fm) { int ret, i; + struct ubi_vid_hdr *vh; ret = erase_block(ubi, fm->e[0]->pnum); + if (ret < 0) + return ret; + + vh = new_fm_vhdr(ubi, UBI_FM_SB_VOLUME_ID); + if (!vh) + return -ENOMEM; + + /* deleting the current fastmap SB is not enough, an old SB may exist, + * so create a (corrupted) SB such that fastmap will find it and fall + * back to scanning mode in any case */ + vh->sqnum = cpu_to_be64(ubi_next_sqnum(ubi)); + ret = ubi_io_write_vid_hdr(ubi, fm->e[0]->pnum, vh); for (i = 0; i < fm->used_blocks; i++) ubi_wl_put_fm_peb(ubi, fm->e[i], fm->to_be_tortured[i]); -- 1.7.6.5
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