From: Hugh Dickins <hughd@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 2/12] mm: let swap use exceptional entries
Date: Tue, 19 Jul 2011 15:46:14 -0700 (PDT) [thread overview]
Message-ID: <alpine.LSU.2.00.1107191538460.1565@sister.anvils> (raw)
In-Reply-To: <20110713161121.17fd98a4.akpm@linux-foundation.org>
On Wed, 13 Jul 2011, Andrew Morton wrote:
> On Tue, 12 Jul 2011 15:08:58 -0700 (PDT)
> Hugh Dickins <hughd@google.com> wrote:
> >
> > I'll keep the bland naming, if that's okay, but send a patch adding
> > a line of comment in such places. Mentioning shmem, tmpfs, swap.
>
> A better fix would be to create a nicely-documented filemap-specific
> function with a non-bland name which simply wraps
> radix_tree_exception().
I did yesterday try out page_tree_entry_is_not_a_page() to wrap
radix_tree_exceptional_entry(); but (a) I'm wary of negative names,
(b) it was hard to explain why radix_tree_deref_retry() is not a
part of that case, and (c) does a further wrapper help or obscure?
I've skirted the issue in the patch 3/3 I'm about to send you,
maybe you'll think it an improvement, maybe not: I'm neutral.
Hugh
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next prev parent reply other threads:[~2011-07-19 22:46 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-14 10:40 [PATCH 0/12] tmpfs: convert from old swap vector to radix tree Hugh Dickins
2011-06-14 10:42 ` [PATCH 1/12] radix_tree: exceptional entries and indices Hugh Dickins
2011-06-14 11:22 ` Pekka Enberg
2011-06-15 0:24 ` Hugh Dickins
2011-06-17 23:38 ` Andrew Morton
2011-06-18 0:07 ` Randy Dunlap
2011-06-18 0:12 ` Randy Dunlap
2011-06-18 1:52 ` Hugh Dickins
2011-07-19 22:36 ` Hugh Dickins
2011-07-19 23:28 ` Randy Dunlap
2011-06-18 0:13 ` Hugh Dickins
2011-06-18 21:48 ` Andrew Morton
2011-07-12 22:56 ` Hugh Dickins
2011-07-12 23:24 ` Andrew Morton
2011-07-13 22:27 ` Hugh Dickins
2011-06-14 10:43 ` [PATCH 2/12] mm: let swap use exceptional entries Hugh Dickins
2011-06-18 21:52 ` Andrew Morton
2011-07-12 22:08 ` Hugh Dickins
2011-07-13 23:11 ` Andrew Morton
2011-07-19 22:46 ` Hugh Dickins [this message]
2011-06-18 21:55 ` Andrew Morton
2011-07-12 22:35 ` Hugh Dickins
2011-06-14 10:45 ` [PATCH 3/12] tmpfs: demolish old swap vector support Hugh Dickins
2011-06-14 10:48 ` [PATCH 4/12] tmpfs: miscellaneous trivial cleanups Hugh Dickins
2011-06-14 10:49 ` [PATCH 5/12] tmpfs: copy truncate_inode_pages_range Hugh Dickins
2011-06-14 10:51 ` [PATCH 6/12] tmpfs: convert shmem_truncate_range to radix-swap Hugh Dickins
2011-06-14 10:52 ` [PATCH 7/12] tmpfs: convert shmem_unuse_inode " Hugh Dickins
2011-06-14 10:53 ` [PATCH 8/12] tmpfs: convert shmem_getpage_gfp " Hugh Dickins
2011-06-14 10:54 ` [PATCH 9/12] tmpfs: convert mem_cgroup shmem " Hugh Dickins
2011-06-14 10:56 ` [PATCH 10/12] tmpfs: convert shmem_writepage and enable swap Hugh Dickins
2011-06-14 10:57 ` [PATCH 11/12] tmpfs: use kmemdup for short symlinks Hugh Dickins
2011-06-14 11:16 ` Pekka Enberg
2011-06-14 10:59 ` [PATCH 12/12] mm: a few small updates for radix-swap Hugh Dickins
2011-06-15 0:49 ` [PATCH v2 " Hugh Dickins
2011-06-14 17:29 ` [PATCH 0/12] tmpfs: convert from old swap vector to radix tree Linus Torvalds
2011-06-14 18:20 ` Rik van Riel
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