From: lersek@redhat.com (Laszlo Ersek)
To: linux-arm-kernel@lists.infradead.org
Subject: Linux 3.19-rc3
Date: Sat, 10 Jan 2015 21:08:11 +0100 [thread overview]
Message-ID: <54B186AB.70806@redhat.com> (raw)
In-Reply-To: <CA+55aFzXYhyBW_pF___69o98uq7nnH60wvnTr37RYmrjQgsdQA@mail.gmail.com>
On 01/10/15 20:56, Linus Torvalds wrote:
> On Sat, Jan 10, 2015 at 11:47 AM, Laszlo Ersek <lersek@redhat.com> wrote:
>>
>> I grepped the tree for "fullmm", and only tlb_gather_mmu() seems to set
>> it. There are several instances of that function, but each sets fullmm to:
>>
>> /* Is it from 0 to ~0? */
>> tlb->fullmm = !(start | (end+1));
>>
>> So, a nonzero fullmm seems to imply (end == ~0UL).
>
> Yes. But note how it imples "end == ~0ul", but it does *not* imply
> "tlb->end" having that value.
Ooops! :)
> tlb->end is initialized to zero (not obvious, but it's what the call
> to __tlb_reset_range() does). It's then updated by
> __tlb_adjust_range() as we actually flush individual pages.
Thanks.
Laszlo
next prev parent reply other threads:[~2015-01-10 20:08 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CA+55aFwsxoyLb9OWMSCL3doe_cz_EQtKsEFCyPUYn_T87pbz0A@mail.gmail.com>
2015-01-08 12:51 ` Linux 3.19-rc3 Mark Langsdorf
2015-01-08 13:45 ` Catalin Marinas
2015-01-08 17:29 ` Mark Langsdorf
2015-01-08 17:34 ` Catalin Marinas
2015-01-08 18:48 ` Mark Langsdorf
2015-01-08 19:21 ` Linus Torvalds
2015-01-09 23:27 ` Catalin Marinas
2015-01-10 0:35 ` Kirill A. Shutemov
2015-01-10 2:27 ` Linus Torvalds
2015-01-10 2:51 ` David Lang
2015-01-10 3:06 ` Linus Torvalds
2015-01-10 10:46 ` Andreas Mohr
2015-01-10 19:42 ` Linus Torvalds
2015-01-13 3:33 ` Rik van Riel
2015-01-13 10:28 ` Catalin Marinas
2015-01-10 3:17 ` Tony Luck
2015-01-10 20:16 ` Arnd Bergmann
2015-01-10 21:00 ` Linus Torvalds
2015-01-10 21:36 ` Arnd Bergmann
2015-01-10 21:48 ` Linus Torvalds
2015-01-12 11:37 ` Kirill A. Shutemov
2015-01-12 12:18 ` Catalin Marinas
2015-01-12 13:57 ` Arnd Bergmann
2015-01-12 14:23 ` Catalin Marinas
2015-01-12 15:42 ` Arnd Bergmann
2015-01-12 11:53 ` Catalin Marinas
2015-01-12 13:15 ` Arnd Bergmann
2015-01-08 15:08 ` Michal Hocko
2015-01-08 16:37 ` Mark Langsdorf
2015-01-09 15:56 ` Michal Hocko
2015-01-09 12:13 ` Mark Rutland
2015-01-09 14:19 ` Steve Capper
2015-01-09 14:27 ` Mark Langsdorf
2015-01-09 17:57 ` Mark Rutland
2015-01-09 18:37 ` Marc Zyngier
2015-01-09 19:43 ` Will Deacon
2015-01-10 3:29 ` Laszlo Ersek
2015-01-10 4:39 ` Linus Torvalds
2015-01-10 13:37 ` Will Deacon
2015-01-10 19:47 ` Laszlo Ersek
2015-01-10 19:56 ` Linus Torvalds
2015-01-10 20:08 ` Laszlo Ersek [this message]
2015-01-10 19:51 ` Linus Torvalds
2015-01-12 12:42 ` Will Deacon
2015-01-12 13:22 ` Mark Langsdorf
2015-01-12 19:03 ` Dave Hansen
2015-01-12 19:06 ` Linus Torvalds
2015-01-12 19:07 ` Linus Torvalds
2015-01-12 19:24 ` Will Deacon
2015-01-10 15:22 ` Kyle McMartin
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=54B186AB.70806@redhat.com \
--to=lersek@redhat.com \
--cc=linux-arm-kernel@lists.infradead.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).