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authorNeilBrown <neilb@suse.de>2012-05-31 15:39:11 +1000
committerNeilBrown <neilb@suse.de>2012-05-31 15:56:30 +1000
commitaba336bd1d46d6b0404b06f6915ed76150739057 (patch)
tree6517e35ba3f6df77276d9c4e81d8ec726228aacd /lib
parent2aa4ee2a8805ec0260dde971e9e6699917c868a7 (diff)
downloadblackbird-op-linux-aba336bd1d46d6b0404b06f6915ed76150739057.tar.gz
blackbird-op-linux-aba336bd1d46d6b0404b06f6915ed76150739057.zip
md: raid1/raid10: fix problem with merge_bvec_fn
The new merge_bvec_fn which calls the corresponding function in subsidiary devices requires that mddev->merge_check_needed be set if any child has a merge_bvec_fn. However were were only setting that when a device was hot-added, not when a device was present from the start. This bug was introduced in 3.4 so patch is suitable for 3.4.y kernels. However that are conflicts in raid10.c so a separate patch will be needed for 3.4.y. Cc: stable@vger.kernel.org Reported-by: Sebastian Riemer <sebastian.riemer@profitbricks.com> Signed-off-by: NeilBrown <neilb@suse.de>
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