diff options
Diffstat (limited to 'drivers/mtd')
-rw-r--r-- | drivers/mtd/nand/r852.c | 2 | ||||
-rw-r--r-- | drivers/mtd/sm_ftl.c | 2 | ||||
-rw-r--r-- | drivers/mtd/ubi/build.c | 28 |
3 files changed, 3 insertions, 29 deletions
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index d9d7efbc77cc..6322d1fb5d62 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c | |||
@@ -930,7 +930,7 @@ int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) | |||
930 | 930 | ||
931 | init_completion(&dev->dma_done); | 931 | init_completion(&dev->dma_done); |
932 | 932 | ||
933 | dev->card_workqueue = create_freezeable_workqueue(DRV_NAME); | 933 | dev->card_workqueue = create_freezable_workqueue(DRV_NAME); |
934 | 934 | ||
935 | if (!dev->card_workqueue) | 935 | if (!dev->card_workqueue) |
936 | goto error9; | 936 | goto error9; |
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index 67822cf6c025..ac0d6a8613b5 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c | |||
@@ -1258,7 +1258,7 @@ static struct mtd_blktrans_ops sm_ftl_ops = { | |||
1258 | static __init int sm_module_init(void) | 1258 | static __init int sm_module_init(void) |
1259 | { | 1259 | { |
1260 | int error = 0; | 1260 | int error = 0; |
1261 | cache_flush_workqueue = create_freezeable_workqueue("smflush"); | 1261 | cache_flush_workqueue = create_freezable_workqueue("smflush"); |
1262 | 1262 | ||
1263 | if (IS_ERR(cache_flush_workqueue)) | 1263 | if (IS_ERR(cache_flush_workqueue)) |
1264 | return PTR_ERR(cache_flush_workqueue); | 1264 | return PTR_ERR(cache_flush_workqueue); |
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index f49e49dc5928..5ebe280225d6 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c | |||
@@ -672,33 +672,7 @@ static int io_init(struct ubi_device *ubi) | |||
672 | ubi->nor_flash = 1; | 672 | ubi->nor_flash = 1; |
673 | } | 673 | } |
674 | 674 | ||
675 | /* | 675 | ubi->min_io_size = ubi->mtd->writesize; |
676 | * Set UBI min. I/O size (@ubi->min_io_size). We use @mtd->writebufsize | ||
677 | * for these purposes, not @mtd->writesize. At the moment this does not | ||
678 | * matter for NAND, because currently @mtd->writebufsize is equivalent to | ||
679 | * @mtd->writesize for all NANDs. However, some CFI NOR flashes may | ||
680 | * have @mtd->writebufsize which is multiple of @mtd->writesize. | ||
681 | * | ||
682 | * The reason we use @mtd->writebufsize for @ubi->min_io_size is that | ||
683 | * UBI and UBIFS recovery algorithms rely on the fact that if there was | ||
684 | * an unclean power cut, then we can find offset of the last corrupted | ||
685 | * node, align the offset to @ubi->min_io_size, read the rest of the | ||
686 | * eraseblock starting from this offset, and check whether there are | ||
687 | * only 0xFF bytes. If yes, then we are probably dealing with a | ||
688 | * corruption caused by a power cut, if not, then this is probably some | ||
689 | * severe corruption. | ||
690 | * | ||
691 | * Thus, we have to use the maximum write unit size of the flash, which | ||
692 | * is @mtd->writebufsize, because @mtd->writesize is the minimum write | ||
693 | * size, not the maximum. | ||
694 | */ | ||
695 | if (ubi->mtd->type == MTD_NANDFLASH) | ||
696 | ubi_assert(ubi->mtd->writebufsize == ubi->mtd->writesize); | ||
697 | else if (ubi->mtd->type == MTD_NORFLASH) | ||
698 | ubi_assert(ubi->mtd->writebufsize % ubi->mtd->writesize == 0); | ||
699 | |||
700 | ubi->min_io_size = ubi->mtd->writebufsize; | ||
701 | |||
702 | ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft; | 676 | ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft; |
703 | 677 | ||
704 | /* | 678 | /* |