All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Disseldorp <ddiss@suse.de>
To: target-devel@vger.kernel.org
Subject: Re: [PATCH 02/10] target/core: Use kvcalloc() instead of open-coding it
Date: Fri, 16 Nov 2018 13:10:15 +0000	[thread overview]
Message-ID: <20181116141015.54888a45@suse.de> (raw)
In-Reply-To: <20181106171718.89594-3-bvanassche@acm.org>

Hi Bart,

On Thu, 08 Nov 2018 15:17:45 -0800, Bart Van Assche wrote:

> What makes you think that I dropped any of the __GFP flags? The only purpose
> of the __GFP_NOWARN and __GFP_RETRY_MAYFAIL flags is to make kcalloc() fail
> quickly and silently.

Are you confusing __GFP_RETRY_MAYFAIL with __GFP_NORETRY here?

> I'm not dropping these flags: as one can see in the
> kvmalloc_node() implementation that function passes these flags to
> kmalloc_node(). The source code I'm referring to is available in mm/util.c.

I see that (given tag_num * tag_size > PAGE_SIZE) __GFP_NOWARN is added
by kvmalloc_node(), but __GFP_RETRY_MAYFAIL is dropped with your change,
which sees __GFP_NORETRY added in the >PAGE_SIZE path.

Cheers, David

  parent reply	other threads:[~2018-11-16 13:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-06 17:17 [PATCH 02/10] target/core: Use kvcalloc() instead of open-coding it Bart Van Assche
2018-11-08 12:54 ` David Disseldorp
2018-11-08 23:17 ` Bart Van Assche
2018-11-16 13:10 ` David Disseldorp [this message]
2018-11-16 15:58 ` Bart Van Assche
2018-11-16 17:02 ` David Disseldorp

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=20181116141015.54888a45@suse.de \
    --to=ddiss@suse.de \
    --cc=target-devel@vger.kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.