]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
md: always set MD_RECOVERY_INTR when aborting a reshape or other "resync".
authorNeilBrown <neilb@suse.de>
Wed, 28 May 2014 03:39:23 +0000 (13:39 +1000)
committerNeilBrown <neilb@suse.de>
Wed, 28 May 2014 03:39:39 +0000 (13:39 +1000)
commit3991b31ea072b070081ca3bfa860a077eda67de5
treecfdaba3df33e15a931abad1e9e119f56af6ff5d9
parentc7208164e66f63e3ec1759b98087849286410741
md: always set MD_RECOVERY_INTR when aborting a reshape or other "resync".

If mddev->ro is set, md_to_sync will (correctly) abort.
However in that case MD_RECOVERY_INTR isn't set.

If a RESHAPE had been requested, then ->finish_reshape() will be
called and it will think the reshape was successful even though
nothing happened.

Normally a resync will not be requested if ->ro is set, but if an
array is stopped while a reshape is on-going, then when the array is
started, the reshape will be restarted.  If the array is also set
read-only at this point, the reshape will instantly appear to success,
resulting in data corruption.

Consequently, this patch is suitable for any -stable kernel.

Cc: stable@vger.kernel.org (any)
Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/md.c