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(parent: 5671ba6) | patch
powerpc/pseries/hvconsole: Fix dropped console output
authorAnton Blanchard <anton@samba.org>
Tue, 5 Jul 2011 21:51:36 +0000 (21:51 +0000)
committerAndi Kleen <ak@linux.intel.com>
Mon, 1 Aug 2011 20:55:01 +0000 (13:55 -0700)
commitbf7b6215667dd484edf6aa03b764927afc6a6c76
tree5f56b33988550a0204191f5f35db82aeb106e2c6tree | snapshot
parent5671ba64a10a8150de56a8131cf0084381ca79bacommit | diff
powerpc/pseries/hvconsole: Fix dropped console output

[ upstream commit 51d33021425e1f905beb4208823146f2fb6517da ]

Return -EAGAIN when we get H_BUSY back from the hypervisor. This
makes the hvc console driver retry, avoiding dropped printks.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
arch/powerpc/platforms/pseries/hvconsole.c diff | blob | history
Linux kernel for KaRo TX COM modules