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md: Fix bitmap offset type in sb writer

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Bitmap offset is allowed to be negative, indicating that bitmap precedes
metadata. Change the type back from sector_t to loff_t to satisfy
conditionals and calculations.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/linux-raid/CAPhsuW6HuaUJ5WcyPajVgUfkQFYp2D_cy1g6qxN4CU_gP2=z7g@mail.gmail.com/
Fixes: 10172f200b67 ("md: Fix types in sb writer")
Signed-off-by: Jonathan Derrick <jonathan.derrick@linux.dev>
Suggested-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230425011438.71046-1-jonathan.derrick@linux.dev
This commit is contained in:
Jonathan Derrick 2023-04-24 19:14:38 -06:00 committed by Song Liu
parent fc05e06e60
commit b1211978ec
1 changed files with 3 additions and 3 deletions
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6
drivers/md/md-bitmap.c
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@ -219,7 +219,7 @@ static unsigned int optimal_io_size(struct block_device *bdev,
}
static unsigned int bitmap_io_size(unsigned int io_size, unsigned int opt_size,
sector_t start, sector_t boundary)
loff_t start, loff_t boundary)
{
if (io_size != opt_size &&
start + opt_size / SECTOR_SIZE <= boundary)
@ -237,8 +237,8 @@ static int __write_sb_page(struct md_rdev *rdev, struct bitmap *bitmap,
struct block_device *bdev;
struct mddev *mddev = bitmap->mddev;
struct bitmap_storage *store = &bitmap->storage;
sector_t offset = mddev->bitmap_info.offset;
sector_t ps, sboff, doff;
loff_t sboff, offset = mddev->bitmap_info.offset;
sector_t ps, doff;
unsigned int size = PAGE_SIZE;
unsigned int opt_size = PAGE_SIZE;