From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
To: sekharan@us.ibm.com
Cc: ckrm-tech@lists.sourceforge.net, linux-mm@kvack.org
Subject: Re: [ckrm-tech] [PATCH 4/6] CKRM: Add guarantee support for mem controller
Date: Thu, 30 Jun 2005 14:52:10 +0900 [thread overview]
Message-ID: <1120110730.479552.4689.nullmailer@yamt.dyndns.org> (raw)
In-Reply-To: Your message of "Fri, 24 Jun 2005 15:25:42 -0700" <1119651942.5105.21.camel@linuxchandra>
> +static inline void
> +ckrm_clear_page_class(struct page *page)
> +{
> + struct ckrm_zone *czone = page_ckrmzone(page);
> + if (czone == NULL)
> + return;
> + sub_use_count(czone->memcls, 0, page_zonenum(page), 1);
> + kref_put(&czone->memcls->nr_users, memclass_release);
> + set_page_ckrmzone(page, NULL);
> }
are you sure if it's safe?
this function is called with zone->lock held,
and memclass_release calls kfree.
YAMAMOTO Takashi
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next prev parent reply other threads:[~2005-06-30 5:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-24 22:25 Chandra Seetharaman
2005-06-30 5:52 ` YAMAMOTO Takashi [this message]
2005-06-30 18:11 ` [ckrm-tech] " Chandra Seetharaman
2005-06-30 18:23 ` Dave Hansen
2005-06-30 18:53 ` Chandra Seetharaman
2005-06-30 19:02 ` Dave Hansen
2005-06-30 19:21 ` Chandra Seetharaman
2005-06-30 19:29 ` Dave Hansen
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