From: William Kucharski <william.kucharski@oracle.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Chris Wilson <chris@chris-wilson.co.uk>,
Matthew Auld <matthew.auld@intel.com>,
Huang Ying <ying.huang@intel.com>,
intel-gfx@lists.freedesktop.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/8] Return head pages from find_get_entry and find_lock_entry
Date: Fri, 21 Aug 2020 11:37:49 -0600 [thread overview]
Message-ID: <4AEE52BC-76F0-4DB4-BBB1-7E367C12338B@oracle.com> (raw)
In-Reply-To: <20200819184850.24779-1-willy@infradead.org>
> On Aug 19, 2020, at 12:48 PM, Matthew Wilcox (Oracle) <willy@infradead.org> wrote:
>
> This patch seris started out as part of the THP patch set, but it has
> some nice effects along the way and it seems worth splitting it out and
> submitting separately.
>
> Currently find_get_entry() and find_lock_entry() return the page
> corresponding to the requested index, but the first thing most callers do
> is find the head page, which we just threw away. As part of auditing
> all the callers, I found some misuses of the APIs and some plain
> inefficiencies that I've fixed.
>
> The diffstat is unflattering, but I added more kernel-doc.
>
> Matthew Wilcox (Oracle) (8):
> mm: Factor find_get_swap_page out of mincore_page
> mm: Use find_get_swap_page in memcontrol
> mm: Optimise madvise WILLNEED
> proc: Optimise smaps for shmem entries
> i915: Use find_lock_page instead of find_lock_entry
> mm: Convert find_get_entry to return the head page
> mm: Return head page from find_lock_entry
> mm: Hoist find_subpage call further up in pagecache_get_page
>
> drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 4 +--
> fs/proc/task_mmu.c | 8 +----
> include/linux/pagemap.h | 16 +++++++--
> include/linux/swap.h | 7 ++++
> mm/filemap.c | 41 +++++++++++------------
> mm/madvise.c | 21 +++++++-----
> mm/memcontrol.c | 25 ++------------
> mm/mincore.c | 28 ++--------------
> mm/shmem.c | 15 +++++----
> mm/swap_state.c | 31 +++++++++++++++++
> 10 files changed, 98 insertions(+), 98 deletions(-)
For the series:
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
prev parent reply other threads:[~2020-08-21 17:40 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-19 18:48 [PATCH 0/8] Return head pages from find_get_entry and find_lock_entry Matthew Wilcox (Oracle)
2020-08-19 18:48 ` [PATCH 1/8] mm: Factor find_get_swap_page out of mincore_page Matthew Wilcox (Oracle)
2020-08-19 19:21 ` Matthew Wilcox
2020-08-19 18:48 ` [PATCH 2/8] mm: Use find_get_swap_page in memcontrol Matthew Wilcox (Oracle)
2020-08-26 14:20 ` Johannes Weiner
2020-08-26 14:54 ` Matthew Wilcox
2020-08-26 16:26 ` Johannes Weiner
2020-08-27 12:59 ` Matthew Wilcox
2020-08-27 14:22 ` Johannes Weiner
2020-08-19 18:48 ` [PATCH 3/8] mm: Optimise madvise WILLNEED Matthew Wilcox (Oracle)
2020-08-26 14:23 ` Johannes Weiner
2020-08-19 18:48 ` [PATCH 4/8] proc: Optimise smaps for shmem entries Matthew Wilcox (Oracle)
2020-08-26 14:24 ` Johannes Weiner
2020-08-19 18:48 ` [PATCH 5/8] i915: Use find_lock_page instead of find_lock_entry Matthew Wilcox (Oracle)
2020-08-26 14:27 ` Johannes Weiner
2020-08-19 18:48 ` [PATCH 6/8] mm: Convert find_get_entry to return the head page Matthew Wilcox (Oracle)
2020-08-26 15:09 ` Johannes Weiner
2020-08-26 15:48 ` Matthew Wilcox
2020-08-19 18:48 ` [PATCH 7/8] mm: Return head page from find_lock_entry Matthew Wilcox (Oracle)
2020-08-19 18:48 ` [PATCH 8/8] mm: Hoist find_subpage call further up in pagecache_get_page Matthew Wilcox (Oracle)
2020-08-21 17:37 ` William Kucharski [this message]
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