Re: [PATCH] do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned

On 01/08/2017 07:47 AM, Chandan Rajendra wrote:

The code currently uses sdio->blkbits to compute the number of blocks to
be cleaned. However sdio->blkbits is derived from the logical block size
of the underlying block device (Refer to the definition of
do_blockdev_direct_IO()). Due to this, generic/299 test would rarely
fail when executed on an ext4 filesystem with 64k as the block size and
when using a virtio based disk (having 512 byte as the logical block
size) inside a kvm guest.

This commit fixes the bug by using inode->i_blkbits to compute the
number of blocks to be cleaned.

Thanks, added for 4.10.

-- 
Jens Axboe