dm flakey: Properly corrupt multi-page bios.

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The flakey target is documented to be able to corrupt the Nth byte in
a bio, but does not corrupt byte indices after the first biovec in the
bio. Change the corrupting function to actually corrupt the Nth byte
no matter in which biovec that index falls.

A test device generating two-page bios, atop a flakey device configured
to corrupt a byte index on the second page, verified both the failure
to corrupt before this patch and the expected corruption after this
change.

Signed-off-by: John Dorminy <jdorminy@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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Sweet Tea 2018-11-13 08:04:24 -05:00 • committed by Mike Snitzer

parent ef87bfc24f

commit a00f5276e2

1 changed files with 22 additions and 11 deletions

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drivers/md/dm-flakey.c

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