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Date: Tue, 6 Nov 2018 10:50:12 -0500 From: Sasha Levin <sashal@...nel.org> To: Jack Wang <jack.wang.usish@...il.com> Cc: stable@...r.kernel.org, linux-kernel@...r.kernel.org, shli@...com Subject: Re: [PATCH AUTOSEL 4.19 118/146] MD: fix invalid stored role for a disk On Tue, Nov 06, 2018 at 08:37:32AM +0100, Jack Wang wrote: >Sasha Levin <sashal@...nel.org> 于2018年11月1日周四 上午12:45写道： >> >> From: Shaohua Li <shli@...com> >> >> [ Upstream commit d595567dc4f0c1d90685ec1e2e296e2cad2643ac ] >> >> If we change the number of array's device after device is removed from array, >> then add the device back to array, we can see that device is added as active >> role instead of spare which we expected. >> >> Please see the below link for details: >> https://marc.info/?l=linux-raid&m=153736982015076&w=2 >> >> This is caused by that we prefer to use device's previous role which is >> recorded by saved_raid_disk, but we should respect the new number of >> conf->raid_disks since it could be changed after device is removed. >> >> Reported-by: Gioh Kim <gi-oh.kim@...fitbricks.com> >> Tested-by: Gioh Kim <gi-oh.kim@...fitbricks.com> >> Acked-by: Guoqing Jiang <gqjiang@...e.com>9e753ba9b9b405e3902d9f08aec5f2ea58a0c317 >> Signed-off-by: Shaohua Li <shli@...com> >> Signed-off-by: Sasha Levin <sashal@...nel.org> >Hi Sasha, > >This patch breaks linear hotadd please also include commit >9e753ba9b9b405e3902d9f08aec5f2ea58a0c317 >MD: fix invalid stored role for a disk - try2 I'll queue it up, thanks Jack! -- Thanks, Sasha
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