* [PATCH] mm/gup: correct pin_user_pages.rst location
@ 2020-05-26 8:13 Vitaly Kuznetsov
2020-05-26 8:19 ` John Hubbard
2020-05-26 8:46 ` Mike Rapoport
0 siblings, 2 replies; 4+ messages in thread
From: Vitaly Kuznetsov @ 2020-05-26 8:13 UTC (permalink / raw)
To: linux-mm
Cc: linux-kernel, Andrew Morton, John Hubbard, Mike Rapoport,
Jérôme Glisse, Jan Kara, Claudio Imbrenda
pin_user_pages.rst lives in Documentation/core-api/, not Documentation/vm/,
adjust all links accordingly.
Fixes: 3faa52c03f44 ("mm/gup: track FOLL_PIN pages")
Fixes: eddb1c228f79 ("mm/gup: introduce pin_user_pages*() and FOLL_PIN")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
include/linux/mm.h | 4 ++--
mm/gup.c | 18 +++++++++---------
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5a323422d783..1f2850465f59 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1219,7 +1219,7 @@ void unpin_user_pages(struct page **pages, unsigned long npages);
* used to track the pincount (instead using of the GUP_PIN_COUNTING_BIAS
* scheme).
*
- * For more information, please see Documentation/vm/pin_user_pages.rst.
+ * For more information, please see Documentation/core-api/pin_user_pages.rst.
*
* @page: pointer to page to be queried.
* @Return: True, if it is likely that the page has been "dma-pinned".
@@ -2834,7 +2834,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
* releasing pages: get_user_pages*() pages must be released via put_page(),
* while pin_user_pages*() pages must be released via unpin_user_page().
*
- * Please see Documentation/vm/pin_user_pages.rst for more information.
+ * Please see Documentation/core-api/pin_user_pages.rst for more information.
*/
static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags)
diff --git a/mm/gup.c b/mm/gup.c
index 87a6a59fe667..87a3a4b400f9 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -2845,10 +2845,10 @@ EXPORT_SYMBOL_GPL(get_user_pages_fast);
* the arguments here are identical.
*
* FOLL_PIN means that the pages must be released via unpin_user_page(). Please
- * see Documentation/vm/pin_user_pages.rst for further details.
+ * see Documentation/core-api/pin_user_pages.rst for further details.
*
- * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
- * is NOT intended for Case 2 (RDMA: long-term pins).
+ * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
+ * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
*/
int pin_user_pages_fast(unsigned long start, int nr_pages,
unsigned int gup_flags, struct page **pages)
@@ -2885,10 +2885,10 @@ EXPORT_SYMBOL_GPL(pin_user_pages_fast);
* the arguments here are identical.
*
* FOLL_PIN means that the pages must be released via unpin_user_page(). Please
- * see Documentation/vm/pin_user_pages.rst for details.
+ * see Documentation/core-api/pin_user_pages.rst for details.
*
- * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
- * is NOT intended for Case 2 (RDMA: long-term pins).
+ * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
+ * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
*/
long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
@@ -2921,10 +2921,10 @@ EXPORT_SYMBOL(pin_user_pages_remote);
* FOLL_PIN is set.
*
* FOLL_PIN means that the pages must be released via unpin_user_page(). Please
- * see Documentation/vm/pin_user_pages.rst for details.
+ * see Documentation/core-api/pin_user_pages.rst for details.
*
- * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
- * is NOT intended for Case 2 (RDMA: long-term pins).
+ * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
+ * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
*/
long pin_user_pages(unsigned long start, unsigned long nr_pages,
unsigned int gup_flags, struct page **pages,
--
2.25.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] mm/gup: correct pin_user_pages.rst location
2020-05-26 8:13 [PATCH] mm/gup: correct pin_user_pages.rst location Vitaly Kuznetsov
@ 2020-05-26 8:19 ` John Hubbard
2020-05-26 10:29 ` Souptick Joarder
2020-05-26 8:46 ` Mike Rapoport
1 sibling, 1 reply; 4+ messages in thread
From: John Hubbard @ 2020-05-26 8:19 UTC (permalink / raw)
To: Vitaly Kuznetsov, linux-mm
Cc: linux-kernel, Andrew Morton, Mike Rapoport,
Jérôme Glisse, Jan Kara, Claudio Imbrenda,
Souptick Joarder
On 2020-05-26 01:13, Vitaly Kuznetsov wrote:
> pin_user_pages.rst lives in Documentation/core-api/, not Documentation/vm/,
> adjust all links accordingly.
>
> Fixes: 3faa52c03f44 ("mm/gup: track FOLL_PIN pages")
> Fixes: eddb1c228f79 ("mm/gup: introduce pin_user_pages*() and FOLL_PIN")
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> ---
> include/linux/mm.h | 4 ++--
> mm/gup.c | 18 +++++++++---------
> 2 files changed, 11 insertions(+), 11 deletions(-)
Hi Vitaly,
Thanks for the fix,
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
(+CC Souptick, who fixed a similar set of links, maybe in a different
file, as I recall.)
thanks,
--
John Hubbard
NVIDIA
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 5a323422d783..1f2850465f59 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1219,7 +1219,7 @@ void unpin_user_pages(struct page **pages, unsigned long npages);
> * used to track the pincount (instead using of the GUP_PIN_COUNTING_BIAS
> * scheme).
> *
> - * For more information, please see Documentation/vm/pin_user_pages.rst.
> + * For more information, please see Documentation/core-api/pin_user_pages.rst.
> *
> * @page: pointer to page to be queried.
> * @Return: True, if it is likely that the page has been "dma-pinned".
> @@ -2834,7 +2834,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
> * releasing pages: get_user_pages*() pages must be released via put_page(),
> * while pin_user_pages*() pages must be released via unpin_user_page().
> *
> - * Please see Documentation/vm/pin_user_pages.rst for more information.
> + * Please see Documentation/core-api/pin_user_pages.rst for more information.
> */
>
> static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags)
> diff --git a/mm/gup.c b/mm/gup.c
> index 87a6a59fe667..87a3a4b400f9 100644
> --- a/mm/gup.c
> +++ b/mm/gup.c
> @@ -2845,10 +2845,10 @@ EXPORT_SYMBOL_GPL(get_user_pages_fast);
> * the arguments here are identical.
> *
> * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> - * see Documentation/vm/pin_user_pages.rst for further details.
> + * see Documentation/core-api/pin_user_pages.rst for further details.
> *
> - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> - * is NOT intended for Case 2 (RDMA: long-term pins).
> + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> */
> int pin_user_pages_fast(unsigned long start, int nr_pages,
> unsigned int gup_flags, struct page **pages)
> @@ -2885,10 +2885,10 @@ EXPORT_SYMBOL_GPL(pin_user_pages_fast);
> * the arguments here are identical.
> *
> * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> - * see Documentation/vm/pin_user_pages.rst for details.
> + * see Documentation/core-api/pin_user_pages.rst for details.
> *
> - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> - * is NOT intended for Case 2 (RDMA: long-term pins).
> + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> */
> long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
> unsigned long start, unsigned long nr_pages,
> @@ -2921,10 +2921,10 @@ EXPORT_SYMBOL(pin_user_pages_remote);
> * FOLL_PIN is set.
> *
> * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> - * see Documentation/vm/pin_user_pages.rst for details.
> + * see Documentation/core-api/pin_user_pages.rst for details.
> *
> - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> - * is NOT intended for Case 2 (RDMA: long-term pins).
> + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> */
> long pin_user_pages(unsigned long start, unsigned long nr_pages,
> unsigned int gup_flags, struct page **pages,
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] mm/gup: correct pin_user_pages.rst location
2020-05-26 8:19 ` John Hubbard
@ 2020-05-26 10:29 ` Souptick Joarder
0 siblings, 0 replies; 4+ messages in thread
From: Souptick Joarder @ 2020-05-26 10:29 UTC (permalink / raw)
To: John Hubbard
Cc: Vitaly Kuznetsov, Linux-MM, linux-kernel, Andrew Morton,
Mike Rapoport, Jérôme Glisse, Jan Kara,
Claudio Imbrenda
On Tue, May 26, 2020 at 1:49 PM John Hubbard <jhubbard@nvidia.com> wrote:
>
> On 2020-05-26 01:13, Vitaly Kuznetsov wrote:
> > pin_user_pages.rst lives in Documentation/core-api/, not Documentation/vm/,
> > adjust all links accordingly.
> >
> > Fixes: 3faa52c03f44 ("mm/gup: track FOLL_PIN pages")
> > Fixes: eddb1c228f79 ("mm/gup: introduce pin_user_pages*() and FOLL_PIN")
> > Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> > ---
> > include/linux/mm.h | 4 ++--
> > mm/gup.c | 18 +++++++++---------
> > 2 files changed, 11 insertions(+), 11 deletions(-)
>
> Hi Vitaly,
>
> Thanks for the fix,
>
> Reviewed-by: John Hubbard <jhubbard@nvidia.com>
>
> (+CC Souptick, who fixed a similar set of links, maybe in a different
> file, as I recall.)
Changes related to mm/gup.c are merged in linux-next which means we
need to take care
of only *mm.h* part. rebase on top of linux-next should work fine. With that,
Acked-by: Souptick Joarder <jrdr.linux@gmail.com>
> NVIDIA
>
> >
> > diff --git a/include/linux/mm.h b/include/linux/mm.h
> > index 5a323422d783..1f2850465f59 100644
> > --- a/include/linux/mm.h
> > +++ b/include/linux/mm.h
> > @@ -1219,7 +1219,7 @@ void unpin_user_pages(struct page **pages, unsigned long npages);
> > * used to track the pincount (instead using of the GUP_PIN_COUNTING_BIAS
> > * scheme).
> > *
> > - * For more information, please see Documentation/vm/pin_user_pages.rst.
> > + * For more information, please see Documentation/core-api/pin_user_pages.rst.
> > *
> > * @page: pointer to page to be queried.
> > * @Return: True, if it is likely that the page has been "dma-pinned".
> > @@ -2834,7 +2834,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
> > * releasing pages: get_user_pages*() pages must be released via put_page(),
> > * while pin_user_pages*() pages must be released via unpin_user_page().
> > *
> > - * Please see Documentation/vm/pin_user_pages.rst for more information.
> > + * Please see Documentation/core-api/pin_user_pages.rst for more information.
> > */
> >
> > static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags)
> > diff --git a/mm/gup.c b/mm/gup.c
> > index 87a6a59fe667..87a3a4b400f9 100644
> > --- a/mm/gup.c
> > +++ b/mm/gup.c
> > @@ -2845,10 +2845,10 @@ EXPORT_SYMBOL_GPL(get_user_pages_fast);
> > * the arguments here are identical.
> > *
> > * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> > - * see Documentation/vm/pin_user_pages.rst for further details.
> > + * see Documentation/core-api/pin_user_pages.rst for further details.
> > *
> > - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> > - * is NOT intended for Case 2 (RDMA: long-term pins).
> > + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> > + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> > */
> > int pin_user_pages_fast(unsigned long start, int nr_pages,
> > unsigned int gup_flags, struct page **pages)
> > @@ -2885,10 +2885,10 @@ EXPORT_SYMBOL_GPL(pin_user_pages_fast);
> > * the arguments here are identical.
> > *
> > * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> > - * see Documentation/vm/pin_user_pages.rst for details.
> > + * see Documentation/core-api/pin_user_pages.rst for details.
> > *
> > - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> > - * is NOT intended for Case 2 (RDMA: long-term pins).
> > + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> > + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> > */
> > long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
> > unsigned long start, unsigned long nr_pages,
> > @@ -2921,10 +2921,10 @@ EXPORT_SYMBOL(pin_user_pages_remote);
> > * FOLL_PIN is set.
> > *
> > * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> > - * see Documentation/vm/pin_user_pages.rst for details.
> > + * see Documentation/core-api/pin_user_pages.rst for details.
> > *
> > - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> > - * is NOT intended for Case 2 (RDMA: long-term pins).
> > + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> > + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> > */
> > long pin_user_pages(unsigned long start, unsigned long nr_pages,
> > unsigned int gup_flags, struct page **pages,
> >
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] mm/gup: correct pin_user_pages.rst location
2020-05-26 8:13 [PATCH] mm/gup: correct pin_user_pages.rst location Vitaly Kuznetsov
2020-05-26 8:19 ` John Hubbard
@ 2020-05-26 8:46 ` Mike Rapoport
1 sibling, 0 replies; 4+ messages in thread
From: Mike Rapoport @ 2020-05-26 8:46 UTC (permalink / raw)
To: Vitaly Kuznetsov
Cc: linux-mm, linux-kernel, Andrew Morton, John Hubbard,
Jérôme Glisse, Jan Kara, Claudio Imbrenda
On Tue, May 26, 2020 at 10:13:38AM +0200, Vitaly Kuznetsov wrote:
> pin_user_pages.rst lives in Documentation/core-api/, not Documentation/vm/,
> adjust all links accordingly.
>
> Fixes: 3faa52c03f44 ("mm/gup: track FOLL_PIN pages")
> Fixes: eddb1c228f79 ("mm/gup: introduce pin_user_pages*() and FOLL_PIN")
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
> ---
> include/linux/mm.h | 4 ++--
> mm/gup.c | 18 +++++++++---------
> 2 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 5a323422d783..1f2850465f59 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1219,7 +1219,7 @@ void unpin_user_pages(struct page **pages, unsigned long npages);
> * used to track the pincount (instead using of the GUP_PIN_COUNTING_BIAS
> * scheme).
> *
> - * For more information, please see Documentation/vm/pin_user_pages.rst.
> + * For more information, please see Documentation/core-api/pin_user_pages.rst.
> *
> * @page: pointer to page to be queried.
> * @Return: True, if it is likely that the page has been "dma-pinned".
> @@ -2834,7 +2834,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
> * releasing pages: get_user_pages*() pages must be released via put_page(),
> * while pin_user_pages*() pages must be released via unpin_user_page().
> *
> - * Please see Documentation/vm/pin_user_pages.rst for more information.
> + * Please see Documentation/core-api/pin_user_pages.rst for more information.
> */
>
> static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags)
> diff --git a/mm/gup.c b/mm/gup.c
> index 87a6a59fe667..87a3a4b400f9 100644
> --- a/mm/gup.c
> +++ b/mm/gup.c
> @@ -2845,10 +2845,10 @@ EXPORT_SYMBOL_GPL(get_user_pages_fast);
> * the arguments here are identical.
> *
> * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> - * see Documentation/vm/pin_user_pages.rst for further details.
> + * see Documentation/core-api/pin_user_pages.rst for further details.
> *
> - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> - * is NOT intended for Case 2 (RDMA: long-term pins).
> + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> */
> int pin_user_pages_fast(unsigned long start, int nr_pages,
> unsigned int gup_flags, struct page **pages)
> @@ -2885,10 +2885,10 @@ EXPORT_SYMBOL_GPL(pin_user_pages_fast);
> * the arguments here are identical.
> *
> * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> - * see Documentation/vm/pin_user_pages.rst for details.
> + * see Documentation/core-api/pin_user_pages.rst for details.
> *
> - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> - * is NOT intended for Case 2 (RDMA: long-term pins).
> + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> */
> long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
> unsigned long start, unsigned long nr_pages,
> @@ -2921,10 +2921,10 @@ EXPORT_SYMBOL(pin_user_pages_remote);
> * FOLL_PIN is set.
> *
> * FOLL_PIN means that the pages must be released via unpin_user_page(). Please
> - * see Documentation/vm/pin_user_pages.rst for details.
> + * see Documentation/core-api/pin_user_pages.rst for details.
> *
> - * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
> - * is NOT intended for Case 2 (RDMA: long-term pins).
> + * This is intended for Case 1 in Documentation/core-api/pin_user_pages.rst
> + * (DIO). It is NOT intended for Case 2 (RDMA: long-term pins).
> */
> long pin_user_pages(unsigned long start, unsigned long nr_pages,
> unsigned int gup_flags, struct page **pages,
> --
> 2.25.4
>
--
Sincerely yours,
Mike.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-05-26 10:29 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-26 8:13 [PATCH] mm/gup: correct pin_user_pages.rst location Vitaly Kuznetsov
2020-05-26 8:19 ` John Hubbard
2020-05-26 10:29 ` Souptick Joarder
2020-05-26 8:46 ` Mike Rapoport
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