md/raid1: fix_read_error should act on all non-faulty devices.
authorNeilBrown <neilb@suse.de>
Thu, 18 Sep 2014 01:09:04 +0000 (11:09 +1000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 5 Oct 2014 21:52:23 +0000 (14:52 -0700)
commita2e286965a1ddf3ae1bdd89ad23d6aad3eb58a00
tree9539f5e3c6e8653541b6b6eabac58b7528f5f291
parent3cb3fd625636b43f0e1d5c0aa14fb1145442ac4c
md/raid1: fix_read_error should act on all non-faulty devices.

commit b8cb6b4c121e1bf1963c16ed69e7adcb1bc301cd upstream.

If a devices is being recovered it is not InSync and is not Faulty.

If a read error is experienced on that device, fix_read_error()
will be called, but it ignores non-InSync devices.  So it will
neither fix the error nor fail the device.

It is incorrect that fix_read_error() ignores non-InSync devices.
It should only ignore Faulty devices.  So fix it.

This became a bug when we allowed reading from a device that was being
recovered.  It is suitable for any subsequent -stable kernel.

Fixes: da8840a747c0dbf49506ec906757a6b87b9741e9
Reported-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Tested-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/md/raid1.c