From: Paul Mackerras <paulus@ozlabs.org>
To: Souptick Joarder <jrdr.linux@gmail.com>
Cc: mpe@ellerman.id.au, benh@kernel.crashing.org,
akpm@linux-foundation.org, peterz@infradead.org,
mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com,
alexander.shishkin@linux.intel.com, jolsa@redhat.com,
namhyung@kernel.org, pbonzini@redhat.com, sfr@canb.auug.org.au,
rppt@linux.ibm.com, aneesh.kumar@linux.ibm.com,
msuchanek@suse.de, kvm-ppc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, kvm@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
John Hubbard <jhubbard@nvidia.com>
Subject: Re: [linux-next PATCH] mm/gup.c: Convert to use get_user_{page|pages}_fast_only()
Date: Tue, 26 May 2020 17:59:04 +1000 [thread overview]
Message-ID: <20200526075904.GE282305@thinks.paulus.ozlabs.org> (raw)
In-Reply-To: <1590396812-31277-1-git-send-email-jrdr.linux@gmail.com>
On Mon, May 25, 2020 at 02:23:32PM +0530, Souptick Joarder wrote:
> API __get_user_pages_fast() renamed to get_user_pages_fast_only()
> to align with pin_user_pages_fast_only().
>
> As part of this we will get rid of write parameter.
> Instead caller will pass FOLL_WRITE to get_user_pages_fast_only().
> This will not change any existing functionality of the API.
>
> All the callers are changed to pass FOLL_WRITE.
>
> Also introduce get_user_page_fast_only(), and use it in a few
> places that hard-code nr_pages to 1.
>
> Updated the documentation of the API.
>
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
The arch/powerpc/kvm bits look reasonable.
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
WARNING: multiple messages have this Message-ID (diff)
From: Paul Mackerras <paulus@ozlabs.org>
To: Souptick Joarder <jrdr.linux@gmail.com>
Cc: mark.rutland@arm.com, kvm@vger.kernel.org, peterz@infradead.org,
linux-mm@kvack.org, jolsa@redhat.com, sfr@canb.auug.org.au,
Matthew Wilcox <willy@infradead.org>,
rppt@linux.ibm.com, alexander.shishkin@linux.intel.com,
mingo@redhat.com, msuchanek@suse.de,
John Hubbard <jhubbard@nvidia.com>,
kvm-ppc@vger.kernel.org, acme@kernel.org, namhyung@kernel.org,
linux-kernel@vger.kernel.org, aneesh.kumar@linux.ibm.com,
pbonzini@redhat.com, akpm@linux-foundation.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [linux-next PATCH] mm/gup.c: Convert to use get_user_{page|pages}_fast_only()
Date: Tue, 26 May 2020 17:59:04 +1000 [thread overview]
Message-ID: <20200526075904.GE282305@thinks.paulus.ozlabs.org> (raw)
In-Reply-To: <1590396812-31277-1-git-send-email-jrdr.linux@gmail.com>
On Mon, May 25, 2020 at 02:23:32PM +0530, Souptick Joarder wrote:
> API __get_user_pages_fast() renamed to get_user_pages_fast_only()
> to align with pin_user_pages_fast_only().
>
> As part of this we will get rid of write parameter.
> Instead caller will pass FOLL_WRITE to get_user_pages_fast_only().
> This will not change any existing functionality of the API.
>
> All the callers are changed to pass FOLL_WRITE.
>
> Also introduce get_user_page_fast_only(), and use it in a few
> places that hard-code nr_pages to 1.
>
> Updated the documentation of the API.
>
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
The arch/powerpc/kvm bits look reasonable.
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
WARNING: multiple messages have this Message-ID (diff)
From: Paul Mackerras <paulus@ozlabs.org>
To: Souptick Joarder <jrdr.linux@gmail.com>
Cc: mpe@ellerman.id.au, benh@kernel.crashing.org,
akpm@linux-foundation.org, peterz@infradead.org,
mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com,
alexander.shishkin@linux.intel.com, jolsa@redhat.com,
namhyung@kernel.org, pbonzini@redhat.com, sfr@canb.auug.org.au,
rppt@linux.ibm.com, aneesh.kumar@linux.ibm.com,
msuchanek@suse.de, kvm-ppc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, kvm@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
John Hubbard <jhubbard@nvidia.com>
Subject: Re: [linux-next PATCH] mm/gup.c: Convert to use get_user_{page|pages}_fast_only()
Date: Tue, 26 May 2020 07:59:04 +0000 [thread overview]
Message-ID: <20200526075904.GE282305@thinks.paulus.ozlabs.org> (raw)
In-Reply-To: <1590396812-31277-1-git-send-email-jrdr.linux@gmail.com>
On Mon, May 25, 2020 at 02:23:32PM +0530, Souptick Joarder wrote:
> API __get_user_pages_fast() renamed to get_user_pages_fast_only()
> to align with pin_user_pages_fast_only().
>
> As part of this we will get rid of write parameter.
> Instead caller will pass FOLL_WRITE to get_user_pages_fast_only().
> This will not change any existing functionality of the API.
>
> All the callers are changed to pass FOLL_WRITE.
>
> Also introduce get_user_page_fast_only(), and use it in a few
> places that hard-code nr_pages to 1.
>
> Updated the documentation of the API.
>
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
The arch/powerpc/kvm bits look reasonable.
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
next prev parent reply other threads:[~2020-05-26 7:59 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 8:45 [linux-next PATCH] mm/gup.c: Convert to use get_user_{page|pages}_fast_only() Souptick Joarder
2020-05-25 8:53 ` Souptick Joarder
2020-05-25 8:53 ` Souptick Joarder
2020-05-26 7:59 ` Paul Mackerras [this message]
2020-05-26 7:59 ` Paul Mackerras
2020-05-26 7:59 ` Paul Mackerras
2020-05-26 10:40 ` Souptick Joarder
2020-05-26 10:52 ` Souptick Joarder
2020-05-26 10:40 ` Souptick Joarder
2020-05-26 10:40 ` Souptick Joarder
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