From: Christoph Hellwig <hch@infradead.org>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] radix-tree: iterating general cleanup
Date: Wed, 14 Mar 2012 03:36:29 -0400 [thread overview]
Message-ID: <20120314073629.GA17016@infradead.org> (raw)
In-Reply-To: <20120207074905.29797.60353.stgit@zurg>
Any updates on this series?
On Tue, Feb 07, 2012 at 11:54:56AM +0400, Konstantin Khlebnikov wrote:
> This patchset implements common radix-tree iteration routine and
> reworks page-cache lookup functions with using it.
>
> radix_tree_gang_lookup_*slot() now mostly unused (the last user somethere in
> drivers/sh/intc/virq.c), but they are exported, we cannot remove them for now.
>
> Also there some shmem-related radix-tree hacks can be reworked,
> radix_tree_locate_item() can be removed. I already have a few extra patches.
>
> And as usual my lovely bloat-o-meter:
>
> add/remove: 4/3 grow/shrink: 4/4 up/down: 1232/-964 (268)
> function old new delta
> radix_tree_next_chunk - 499 +499
> static.shmem_find_get_pages_and_swap - 404 +404
> find_get_pages_tag 354 488 +134
> find_get_pages 362 438 +76
> find_get_pages_contig 345 407 +62
> __kstrtab_radix_tree_next_chunk - 22 +22
> shmem_truncate_range 1633 1652 +19
> __ksymtab_radix_tree_next_chunk - 16 +16
> radix_tree_gang_lookup_tag_slot 208 180 -28
> radix_tree_gang_lookup_tag 247 207 -40
> radix_tree_gang_lookup_slot 204 162 -42
> radix_tree_gang_lookup 231 160 -71
> __lookup 217 - -217
> __lookup_tag 242 - -242
> shmem_find_get_pages_and_swap 324 - -324
>
> ---
>
> Konstantin Khlebnikov (4):
> bitops: implement "optimized" __find_next_bit()
> radix-tree: introduce bit-optimized iterator
> radix-tree: rewrite gang lookup with using iterator
> radix-tree: use iterators in find_get_pages* functions
>
>
> include/asm-generic/bitops/find.h | 36 +++
> include/linux/radix-tree.h | 129 +++++++++++
> lib/radix-tree.c | 422 +++++++++++++------------------------
> mm/filemap.c | 75 ++++---
> mm/shmem.c | 23 +-
> 5 files changed, 375 insertions(+), 310 deletions(-)
>
> --
> Signature
>
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next prev parent reply other threads:[~2012-03-14 7:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-07 7:54 [PATCH 0/4] radix-tree: iterating general cleanup Konstantin Khlebnikov
2012-02-07 7:55 ` [PATCH 1/4] bitops: implement "optimized" __find_next_bit() Konstantin Khlebnikov
2012-02-07 19:36 ` Linus Torvalds
2012-02-07 7:55 ` [PATCH 2/4] radix-tree: introduce bit-optimized iterator Konstantin Khlebnikov
2012-02-07 7:55 ` [PATCH 3/4] radix-tree: rewrite gang lookup with using iterator Konstantin Khlebnikov
2012-02-07 7:55 ` [PATCH 4/4] radix-tree: use iterators in find_get_pages* functions Konstantin Khlebnikov
2012-02-07 19:38 ` [PATCH 0/4] radix-tree: iterating general cleanup Linus Torvalds
2012-02-08 1:30 ` Konstantin Khlebnikov
2012-02-08 1:50 ` Linus Torvalds
2012-02-08 21:31 ` Dave Chinner
2012-03-14 7:36 ` Christoph Hellwig [this message]
2012-03-14 7:49 ` Konstantin Khlebnikov
2012-03-14 7:51 ` Christoph Hellwig
2012-03-14 19:36 ` Hugh Dickins
2012-03-15 0:06 ` Andrew Morton
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