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Date: Wed, 19 Aug 2015 17:13:01 +0100 From: Catalin Marinas <catalin.marinas@....com> To: Sarbojit Ganguly <ganguly.s@...sung.com> Cc: sharan.allur@...sung.com, vikram.m@...sung.com, "tglx@...utronix.de" <tglx@...utronix.de>, "mingo@...hat.com" <mingo@...hat.com>, "peterz@...radead.org" <peterz@...radead.org>, "Waiman.Long@...com" <Waiman.Long@...com>, "oleg@...hat.com" <oleg@...hat.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>, raghavendra.kt@...ux.vnet.ibm.com Subject: Re: [PATCH] arm: Adding support for atomic half word exchange On Tue, Aug 18, 2015 at 09:17:53AM +0100, Sarbojit Ganguly wrote: > <Ping> > > Since 16 bit half word exchange was not there and MCS based qspinlock by Waiman's xchg_tail() requires an atomic exchange on a half word, here is a small modification to __xchg() code to support the exchange. > ARMv6 and lower does not have support for LDREXH, so we need to make sure things do not break when we're compiling on ARMv6. First of all, please wrap the text appropriately. Secondly, you need to cc the relevant maintainer and mailing list (try running ./scripts/get_maintainer.pl on this patch to get some hints). -- Catalin -- 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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