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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@wwwdotorg.org> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> |
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fat-noncontig-test.sh | ||
fs-test.sh |