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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 19:50:37 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 19:50:37 +0300 |
commit | 3f01727f750eae3e61b738b57355b2538ab179f4 (patch) | |
tree | 756c8ad6ece8c7045a423da34d048ade817d7fa4 /drivers/md/md.c | |
parent | 8d1f01775f8ead7ee313403158be95bffdbb3638 (diff) | |
parent | 97eeb5fc14cc4b2091df8b841a07a1ac69f2d762 (diff) | |
download | linux-3f01727f750eae3e61b738b57355b2538ab179f4.tar.xz |
Merge tag 'for-5.16/bdev-size-2021-10-29' of git://git.kernel.dk/linux-block
Pull bdev size cleanups from Jens Axboe:
"Clean up the bdev size handling with new bdev_nr_bytes() helper"
* tag 'for-5.16/bdev-size-2021-10-29' of git://git.kernel.dk/linux-block: (34 commits)
partitions/ibm: use bdev_nr_sectors instead of open coding it
partitions/efi: use bdev_nr_bytes instead of open coding it
block/ioctl: use bdev_nr_sectors and bdev_nr_bytes
block: cache inode size in bdev
udf: use sb_bdev_nr_blocks
reiserfs: use sb_bdev_nr_blocks
ntfs: use sb_bdev_nr_blocks
jfs: use sb_bdev_nr_blocks
ext4: use sb_bdev_nr_blocks
block: add a sb_bdev_nr_blocks helper
block: use bdev_nr_bytes instead of open coding it in blkdev_fallocate
squashfs: use bdev_nr_bytes instead of open coding it
reiserfs: use bdev_nr_bytes instead of open coding it
pstore/blk: use bdev_nr_bytes instead of open coding it
ntfs3: use bdev_nr_bytes instead of open coding it
nilfs2: use bdev_nr_bytes instead of open coding it
nfs/blocklayout: use bdev_nr_bytes instead of open coding it
jfs: use bdev_nr_bytes instead of open coding it
hfsplus: use bdev_nr_sectors instead of open coding it
hfs: use bdev_nr_sectors instead of open coding it
...
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r-- | drivers/md/md.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index e8666bdc0d28..5111ed966947 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -888,8 +888,7 @@ static struct md_personality *find_pers(int level, char *clevel) /* return the offset of the super block in 512byte sectors */ static inline sector_t calc_dev_sboffset(struct md_rdev *rdev) { - sector_t num_sectors = i_size_read(rdev->bdev->bd_inode) / 512; - return MD_NEW_SIZE_SECTORS(num_sectors); + return MD_NEW_SIZE_SECTORS(bdev_nr_sectors(rdev->bdev)); } static int alloc_disk_sb(struct md_rdev *rdev) @@ -1631,8 +1630,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_ */ switch(minor_version) { case 0: - sb_start = i_size_read(rdev->bdev->bd_inode) >> 9; - sb_start -= 8*2; + sb_start = bdev_nr_sectors(rdev->bdev) - 8 * 2; sb_start &= ~(sector_t)(4*2-1); break; case 1: @@ -1787,10 +1785,9 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_ else ret = 0; } - if (minor_version) { - sectors = (i_size_read(rdev->bdev->bd_inode) >> 9); - sectors -= rdev->data_offset; - } else + if (minor_version) + sectors = bdev_nr_sectors(rdev->bdev) - rdev->data_offset; + else sectors = rdev->sb_start; if (sectors < le64_to_cpu(sb->data_size)) return -EINVAL; @@ -2168,8 +2165,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors) return 0; /* too confusing */ if (rdev->sb_start < rdev->data_offset) { /* minor versions 1 and 2; superblock before data */ - max_sectors = i_size_read(rdev->bdev->bd_inode) >> 9; - max_sectors -= rdev->data_offset; + max_sectors = bdev_nr_sectors(rdev->bdev) - rdev->data_offset; if (!num_sectors || num_sectors > max_sectors) num_sectors = max_sectors; } else if (rdev->mddev->bitmap_info.offset) { @@ -2178,7 +2174,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors) } else { /* minor version 0; superblock after data */ sector_t sb_start, bm_space; - sector_t dev_size = i_size_read(rdev->bdev->bd_inode) >> 9; + sector_t dev_size = bdev_nr_sectors(rdev->bdev); /* 8K is for superblock */ sb_start = dev_size - 8*2; @@ -3391,7 +3387,7 @@ rdev_size_store(struct md_rdev *rdev, const char *buf, size_t len) if (!sectors) return -EBUSY; } else if (!sectors) - sectors = (i_size_read(rdev->bdev->bd_inode) >> 9) - + sectors = bdev_nr_sectors(rdev->bdev) - rdev->data_offset; if (!my_mddev->pers->resize) /* Cannot change size for RAID0 or Linear etc */ @@ -3718,7 +3714,7 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe kobject_init(&rdev->kobj, &rdev_ktype); - size = i_size_read(rdev->bdev->bd_inode) >> BLOCK_SIZE_BITS; + size = bdev_nr_bytes(rdev->bdev) >> BLOCK_SIZE_BITS; if (!size) { pr_warn("md: %s has zero or unknown size, marking faulty!\n", bdevname(rdev->bdev,b)); @@ -6896,7 +6892,7 @@ int md_add_new_disk(struct mddev *mddev, struct mdu_disk_info_s *info) if (!mddev->persistent) { pr_debug("md: nonpersistent superblock ...\n"); - rdev->sb_start = i_size_read(rdev->bdev->bd_inode) / 512; + rdev->sb_start = bdev_nr_sectors(rdev->bdev); } else rdev->sb_start = calc_dev_sboffset(rdev); rdev->sectors = rdev->sb_start; @@ -6983,7 +6979,7 @@ static int hot_add_disk(struct mddev *mddev, dev_t dev) if (mddev->persistent) rdev->sb_start = calc_dev_sboffset(rdev); else - rdev->sb_start = i_size_read(rdev->bdev->bd_inode) / 512; + rdev->sb_start = bdev_nr_sectors(rdev->bdev); rdev->sectors = rdev->sb_start; |