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[PATCH] md: make 'repair' actually work for raid1
When 'repair' finds a block that is different one the various parts of the mirror. it is meant to write a chosen good version to the others. However it currently writes out the original data to each. The memcpy to make all the data the same is missing. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1266,6 +1266,11 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio)
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sbio->bi_sector = r1_bio->sector +
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conf->mirrors[i].rdev->data_offset;
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sbio->bi_bdev = conf->mirrors[i].rdev->bdev;
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for (j = 0; j < vcnt ; j++)
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memcpy(page_address(sbio->bi_io_vec[j].bv_page),
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page_address(pbio->bi_io_vec[j].bv_page),
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PAGE_SIZE);
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}
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}
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}
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