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| author | Quentin Schulz <quentin.schulz@bootlin.com> | 2018-07-02 12:43:50 +0300 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2018-08-15 01:25:20 +0300 |
| commit | 62652517753f3cdddce10935139cfa6e00f8da33 (patch) | |
| tree | b0c59fcc4883e94a9f7dd6a68838e28d6bae827c /drivers/mtd/ubi/kapi.c | |
| parent | a3d218280c273f298b0a17902bc2b4aa3f1dae06 (diff) | |
| download | linux-62652517753f3cdddce10935139cfa6e00f8da33.tar.xz | |
ubi: provide a way to skip CRC checks
Some users of static UBI volumes implement their own integrity check,
thus making the volume CRC check done at open time useless. For
instance, this is the case when one use the ubiblock + dm-verity +
squashfs combination, where dm-verity already checks integrity of the
block device but this time at the block granularity instead of verifying
the whole volume.
Skipping this test drastically improves the boot-time.
Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'drivers/mtd/ubi/kapi.c')
| -rw-r--r-- | drivers/mtd/ubi/kapi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index d4b2e8744498..e9e9ecbcedcc 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -202,7 +202,7 @@ struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode) desc->mode = mode; mutex_lock(&ubi->ckvol_mutex); - if (!vol->checked) { + if (!vol->checked && !vol->skip_check) { /* This is the first open - check the volume */ err = ubi_check_volume(ubi, vol_id); if (err < 0) { |