[U-Boot] [PATCH V2 2/3] test: fat: add test of non-contiguous file reads

[Simon Glass]

On 3 October 2015 at 20:56, Stephen Warren <swarren at wwwdotorg.org> wrote:
> In my patch series to replace fs/fat with "ff.c", I enhanced ff.c to
> optimize file reading, so that reads of contiguous clusters are submitted
> to the IO device as a single read. This test attempts to torture-test
> edge-cases of that enhancement.
>
> BTW, the only way I found to validate that this script actually does
> create non-contiguous files was to manually inspect the FAT bitmap in a
> hex dump of the FAT image. hdparm --fibmap doesn't work on loop-mounted
> filesystems. filefrag -v -e seems to lie about files being contiguous
> when they aren't.
>
> Signed-off-by: Stephen Warren <swarren at wwwdotorg.org>
> ---
> v2:
> * Check for missing pre-requisite binaries, and print an explicit error
>   message if any are missing.
> * Create mount-point rather than assuming it exists.
> * Add a comment describing the script's operation.
> ---
>  test/fs/fat-noncontig-test.sh | 113 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 113 insertions(+)
>  create mode 100755 test/fs/fat-noncontig-test.sh

Reviewed-by: Simon Glass <sjg at chromium.org>
Tested-by: Simon Glass <sjg at chromium.org>