From: Keith Busch <kbusch@xxxxxxxxxx> Don't transform the logical block size to a bit shift only to shift it back out to the size. Just use the size. Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx> --- fs/iomap/direct-io.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 5d478a95efdf..40cbf2025386 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -241,7 +241,7 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, const struct iomap *iomap = &iter->iomap; struct inode *inode = iter->inode; struct block_device *bdev = iomap->bdev; - unsigned int blkbits = blksize_bits(bdev_logical_block_size(bdev)); + unsigned int blksz = bdev_logical_block_size(bdev); unsigned int fs_block_size = i_blocksize(inode), pad; loff_t length = iomap_length(iter); loff_t pos = iter->pos; @@ -253,7 +253,7 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, size_t copied = 0; size_t orig_count; - if ((pos | length) & ((1 << blkbits) - 1) || + if ((pos | length) & (blksz - 1) || !bdev_iter_is_aligned(bdev, dio->submit.iter)) return -EINVAL; -- 2.30.2
