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Guoqing Jiang authored
We need to test FailFast flag for replacement device here since the set up for writing is for the replacement, so we need fix it like: - if (test_bit(FailFast, &conf->mirrors[d].rdev->flags)) + if (test_bit(FailFast, &conf->mirrors[d].replacement->flags)) Since commit f90145f3 ("md/raid10: add rcu protection to rdev access in raid10_sync_request.") had added the rcu protection for the part, so let's extend the range protected by rcu and use rdev directly. Fixes: 1919cbb2 ("md/raid10: add failfast handling for writes.") Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Guoqing Jiang <gqjiang@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
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