From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: linuxppc-dev@ozlabs.org
Cc: mikey@neuling.org, paulus@samba.org
Subject: Re: [RFC] powerpc, tm: Drop tm_orig_msr from thread_struct
Date: Fri, 24 Apr 2015 10:31:52 +0530 [thread overview]
Message-ID: <5539CE40.100@linux.vnet.ibm.com> (raw)
In-Reply-To: <1429517754-7988-1-git-send-email-khandual@linux.vnet.ibm.com>
On 04/20/2015 01:45 PM, Anshuman Khandual wrote:
> Currently tm_orig_msr is getting used during process context switch only.
> Then there is ckpt_regs which saves the checkpointed userspace context
> The MSR slot contained in ckpt_regs structure can be used during process
> context switch instead of tm_orig_msr, thus allowing us to drop it from
> thread_struct structure. This patch does that change.
>
> Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
> ---
> This issue came up in the discussion regarding ptrace interface for TM
> specific registers https://lkml.org/lkml/2015/4/20/100, so just wanted
> to give this a try. The basic TM tests still pass after this change.
Hey Michael/Mikey,
Whats your thoughts on this ? Can we drop tm_orig_msr ?
next prev parent reply other threads:[~2015-04-24 5:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-20 8:15 [RFC] powerpc, tm: Drop tm_orig_msr from thread_struct Anshuman Khandual
2015-04-24 5:01 ` Anshuman Khandual [this message]
2015-06-25 13:42 ` Anshuman Khandual
2015-07-03 5:42 ` Michael Neuling
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