From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Dave Hansen <dave.hansen@intel.com>,
Vlastimil Babka <vbabka@suse.cz>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
David Rientjes <rientjes@google.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCHv4 3/7] zsmalloc: use page->private instead of page->first_page
Date: Mon, 31 Aug 2015 10:30:52 +0900 [thread overview]
Message-ID: <20150831013052.GA2168@swordfish> (raw)
In-Reply-To: <1440683961-32839-4-git-send-email-kirill.shutemov@linux.intel.com>
On (08/27/15 16:59), Kirill A. Shutemov wrote:
> We are going to rework how compound_head() work. It will not use
> page->first_page as we have it now.
>
> The only other user of page->first_page beyond compound pages is
> zsmalloc.
>
> Let's use page->private instead of page->first_page here. It occupies
> the same storage space.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
-ss
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next prev parent reply other threads:[~2015-08-31 1:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-27 13:59 [PATCHv4 0/7] Fix compound_head() race Kirill A. Shutemov
2015-08-27 13:59 ` [PATCHv4 1/7] mm: drop page->slab_page Kirill A. Shutemov
2015-08-27 13:59 ` [PATCHv4 2/7] slub: use page->rcu_head instead of page->lru plus cast Kirill A. Shutemov
2015-08-27 13:59 ` [PATCHv4 3/7] zsmalloc: use page->private instead of page->first_page Kirill A. Shutemov
2015-08-31 1:30 ` Sergey Senozhatsky [this message]
2015-08-27 13:59 ` [PATCHv4 4/7] mm: pack compound_dtor and compound_order into one word in struct page Kirill A. Shutemov
2015-08-27 13:59 ` [PATCHv4 5/7] mm: make compound_head() robust Kirill A. Shutemov
2015-08-27 15:21 ` Michal Hocko
2015-08-27 13:59 ` [PATCHv4 6/7] mm: use 'unsigned int' for page order Kirill A. Shutemov
2015-08-27 13:59 ` [PATCHv4 7/7] mm: use 'unsigned int' for compound_dtor/compound_order on 64BIT Kirill A. Shutemov
2015-08-27 15:19 ` Michal Hocko
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