From: John Hubbard <jhubbard@nvidia.com>
To: Pavel Tatashin <pasha.tatashin@soleen.com>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<akpm@linux-foundation.org>, <vbabka@suse.cz>, <mhocko@suse.com>,
<david@redhat.com>, <osalvador@suse.de>,
<dan.j.williams@intel.com>, <sashal@kernel.org>,
<tyhicks@linux.microsoft.com>, <iamjoonsoo.kim@lge.com>,
<mike.kravetz@oracle.com>, <rostedt@goodmis.org>,
<mingo@redhat.com>, <jgg@ziepe.ca>, <peterz@infradead.org>,
<mgorman@suse.de>, <willy@infradead.org>, <rientjes@google.com>
Subject: Re: [PATCH 3/6] mm/gup: make __gup_longterm_locked common
Date: Thu, 3 Dec 2020 00:03:10 -0800 [thread overview]
Message-ID: <ad473039-d5be-c0a5-3f68-dd87b0dd77ec@nvidia.com> (raw)
In-Reply-To: <20201202052330.474592-4-pasha.tatashin@soleen.com>
On 12/1/20 9:23 PM, Pavel Tatashin wrote:
> __gup_longterm_locked() has CMA || FS_DAX version and a common stub
> version. In the preparation of prohibiting longterm pinning of pages from
> movable zone make the CMA || FS_DAX version common, and delete the stub
> version.
>
> Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
> ---
> mm/gup.c | 13 -------------
> 1 file changed, 13 deletions(-)
>
> diff --git a/mm/gup.c b/mm/gup.c
> index 3a76c005a3e2..0e2de888a8b0 100644
> --- a/mm/gup.c
> +++ b/mm/gup.c
> @@ -1567,7 +1567,6 @@ struct page *get_dump_page(unsigned long addr)
> }
> #endif /* CONFIG_ELF_CORE */
>
> -#if defined(CONFIG_FS_DAX) || defined (CONFIG_CMA)
> #ifdef CONFIG_FS_DAX
> static bool check_dax_vmas(struct vm_area_struct **vmas, long nr_pages)
> {
> @@ -1757,18 +1756,6 @@ static long __gup_longterm_locked(struct mm_struct *mm,
> kfree(vmas_tmp);
> return rc;
> }
> -#else /* !CONFIG_FS_DAX && !CONFIG_CMA */
> -static __always_inline long __gup_longterm_locked(struct mm_struct *mm,
> - unsigned long start,
> - unsigned long nr_pages,
> - struct page **pages,
> - struct vm_area_struct **vmas,
> - unsigned int flags)
> -{
> - return __get_user_pages_locked(mm, start, nr_pages, pages, vmas,
> - NULL, flags);
> -}
> -#endif /* CONFIG_FS_DAX || CONFIG_CMA */
>
> static bool is_valid_gup_flags(unsigned int gup_flags)
> {
>
At last some simplification here, yea!
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
thanks,
--
John Hubbard
NVIDIA
next prev parent reply other threads:[~2020-12-03 8:04 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 5:23 [PATCH 0/6] prohibit pinning pages in ZONE_MOVABLE Pavel Tatashin
2020-12-02 5:23 ` [PATCH 1/6] mm/gup: perform check_dax_vmas only when FS_DAX is enabled Pavel Tatashin
2020-12-02 16:22 ` Ira Weiny
2020-12-02 18:15 ` Pavel Tatashin
2020-12-02 16:29 ` Jason Gunthorpe
2020-12-02 18:16 ` Pavel Tatashin
2020-12-03 7:59 ` John Hubbard
2020-12-03 14:52 ` Pavel Tatashin
2020-12-02 5:23 ` [PATCH 2/6] mm/gup: don't pin migrated cma pages in movable zone Pavel Tatashin
2020-12-02 16:31 ` David Hildenbrand
2020-12-02 18:17 ` Pavel Tatashin
2020-12-03 8:01 ` John Hubbard
2020-12-03 8:46 ` Michal Hocko
2020-12-03 14:58 ` Pavel Tatashin
2020-12-02 5:23 ` [PATCH 3/6] mm/gup: make __gup_longterm_locked common Pavel Tatashin
2020-12-02 16:31 ` Ira Weiny
2020-12-02 16:33 ` Ira Weiny
2020-12-02 18:19 ` Pavel Tatashin
2020-12-03 0:03 ` Pavel Tatashin
2020-12-03 8:03 ` John Hubbard [this message]
2020-12-03 15:02 ` Pavel Tatashin
2020-12-02 5:23 ` [PATCH 4/6] mm cma: rename PF_MEMALLOC_NOCMA to PF_MEMALLOC_NOMOVABLE Pavel Tatashin
2020-12-03 8:04 ` John Hubbard
2020-12-03 15:02 ` Pavel Tatashin
2020-12-03 8:57 ` Michal Hocko
2020-12-03 15:02 ` Pavel Tatashin
2020-12-02 5:23 ` [PATCH 5/6] mm: honor PF_MEMALLOC_NOMOVABLE for all allocations Pavel Tatashin
2020-12-03 8:17 ` John Hubbard
2020-12-03 15:06 ` Pavel Tatashin
2020-12-03 16:51 ` John Hubbard
2020-12-03 9:17 ` Michal Hocko
2020-12-03 15:15 ` Pavel Tatashin
2020-12-04 8:43 ` Michal Hocko
2020-12-04 8:54 ` Michal Hocko
2020-12-04 16:07 ` Pavel Tatashin
2020-12-02 5:23 ` [PATCH 6/6] mm/gup: migrate pinned pages out of movable zone Pavel Tatashin
2020-12-02 16:35 ` Jason Gunthorpe
2020-12-03 0:19 ` Pavel Tatashin
2020-12-03 1:08 ` Jason Gunthorpe
2020-12-03 1:34 ` Pavel Tatashin
2020-12-03 14:17 ` Jason Gunthorpe
2020-12-03 16:40 ` Pavel Tatashin
2020-12-03 16:59 ` Jason Gunthorpe
2020-12-03 17:14 ` Pavel Tatashin
2020-12-03 19:15 ` Pavel Tatashin
2020-12-03 19:36 ` Jason Gunthorpe
2020-12-04 16:24 ` Pavel Tatashin
2020-12-04 17:06 ` Jason Gunthorpe
2020-12-04 20:05 ` Daniel Jordan
2020-12-04 20:16 ` Pavel Tatashin
2020-12-08 2:27 ` Daniel Jordan
2020-12-04 20:52 ` Jason Gunthorpe
2020-12-08 2:48 ` Daniel Jordan
2020-12-08 13:24 ` Jason Gunthorpe
2020-12-03 8:22 ` John Hubbard
2020-12-03 15:55 ` Pavel Tatashin
2020-12-04 4:13 ` Joonsoo Kim
2020-12-04 17:43 ` Pavel Tatashin
2020-12-07 7:13 ` Joonsoo Kim
2020-12-04 4:02 ` [PATCH 0/6] prohibit pinning pages in ZONE_MOVABLE Joonsoo Kim
2020-12-04 15:55 ` Pavel Tatashin
2020-12-04 16:10 ` Jason Gunthorpe
2020-12-04 17:50 ` Pavel Tatashin
2020-12-04 18:01 ` David Hildenbrand
2020-12-04 18:10 ` Pavel Tatashin
2020-12-07 7:12 ` Joonsoo Kim
2020-12-07 12:13 ` Michal Hocko
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