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Date: Sun, 05 Feb 2012 23:10:25 +0100 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Anton Blanchard <anton@...ba.org>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Greg KH <gregkh@...uxfoundation.org> Subject: [PATCH 36/91] powerpc/pseries/hvconsole: Fix dropped console output 2.6.27-longterm review patch. If anyone has any objections, please let us know. ------------------ commit 51d33021425e1f905beb4208823146f2fb6517da upstream. 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@...ba.org> Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- arch/powerpc/platforms/pseries/hvconsole.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) Index: longterm-2.6.27/arch/powerpc/platforms/pseries/hvconsole.c =================================================================== --- longterm-2.6.27.orig/arch/powerpc/platforms/pseries/hvconsole.c 2012-02-05 22:34:33.922915442 +0100 +++ longterm-2.6.27/arch/powerpc/platforms/pseries/hvconsole.c 2012-02-05 22:34:39.962914708 +0100 @@ -73,7 +73,7 @@ if (ret == H_SUCCESS) return count; if (ret == H_BUSY) - return 0; + return -EAGAIN; return -EIO; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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