From: Michael Neuling <mikey@neuling.org>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] powerpc: thp: Use tlbiel wherever possible
Date: Thu, 07 Aug 2014 09:12:16 +1000 [thread overview]
Message-ID: <1407366736.8507.35.camel@ale.ozlabs.ibm.com> (raw)
In-Reply-To: <8738d965hf.fsf@linux.vnet.ibm.com>
On Wed, 2014-08-06 at 20:16 +0530, Aneesh Kumar K.V wrote:
> "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> writes:
>=20
> > If we know that user address space has never executed on other cpus
> > we could use tlbiel.
> >
> > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
>=20
> Now checking against flush_hash_page, I am wondering whether I need to ha=
ndle
> transcational memory in case of tlbiel ? Michael, can you let me know if
> this is needed ?
Yeah, you do need to add something. =20
local tlbie won't abort the transaction (broadcast will abort), so you
need to do a explicit tabort if there is an active transaction, to make
sure the transaction is doomed.
Mikey
prev parent reply other threads:[~2014-08-06 23:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-05 6:48 [PATCH] powerpc: thp: Use tlbiel wherever possible Aneesh Kumar K.V
2014-08-06 14:46 ` Aneesh Kumar K.V
2014-08-06 20:30 ` Benjamin Herrenschmidt
2014-08-07 6:04 ` Aneesh Kumar K.V
2014-08-06 23:12 ` Michael Neuling [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1407366736.8507.35.camel@ale.ozlabs.ibm.com \
--to=mikey@neuling.org \
--cc=aneesh.kumar@linux.vnet.ibm.com \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).