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dd545b52a3
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. Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Fixed up by Jeff Moyer to only use/evaluate inode->i_blkbits once, to avoid issues with block size changes with IO in flight. Signed-off-by: Jens Axboe <axboe@fb.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.