+ mm-add-mmap_action_simple_ioremap-fix.patch added to mm-new branch

+ mm-add-mmap_action_simple_ioremap-fix.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: mm-add-mmap_action_simple_ioremap-fix
has been added to the -mm mm-new branch.  Its filename is
     mm-add-mmap_action_simple_ioremap-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-add-mmap_action_simple_ioremap-fix.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-add-mmap_action_simple_ioremap-fix
Date: Sat Mar 14 04:19:36 PM PDT 2026

randyfy mmap_prepare.rst

Cc: "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 Documentation/filesystems/mmap_prepare.rst |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Documentation/filesystems/mmap_prepare.rst~mm-add-mmap_action_simple_ioremap-fix
+++ a/Documentation/filesystems/mmap_prepare.rst
@@ -127,7 +127,7 @@ pointer. These are:
 * mmap_action_ioremap_full() - Same as mmap_action_ioremap(), only remaps
   the entire mapping from ``start_pfn`` onward.
 
-* `mmap_action_simple_ioremap()` - Sets up an I/O remap from a specified
+* mmap_action_simple_ioremap() - Sets up an I/O remap from a specified
   physical address and over a specified length.
 
 **NOTE:** The ``action`` field should never normally be manipulated directly,
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

maple_tree-start-using-maple-copy-node-for-destination-checkpatch-fixes.patch
maple_tree-add-cp_is_new_root-helper-fix-fix.patch
mm-centralizefix-comments-about-compound_mapcount-in-new-sync_with_folio_pmd_zap-fix.patch
mm-memcontrol-convert-objcg-to-be-per-memcg-per-node-type-fix-fix.patch
mm-rename-zone-lock-to-zone-_lock-fix.patch
mm-page_reporting-add-page_reporting_order_unspecified-fix.patch
mm-various-small-mmap_prepare-cleanups-fix.patch
mm-add-mmap_action_simple_ioremap-fix.patch
mm-add-mmap_action_map_kernel_pages-fix.patch
kernel-panic-increase-buffer-size-for-verbose-taint-logging-fix.patch
decode_stacktrace-decode-caller-address-checkpatch-fixes.patch

Re: + mm-add-mmap_action_simple_ioremap-fix.patch added to mm-new branch

[Randy Dunlap]

On 3/14/26 4:21 PM, Andrew Morton wrote:
> The patch titled
>      Subject: mm-add-mmap_action_simple_ioremap-fix
> has been added to the -mm mm-new branch.  Its filename is
>      mm-add-mmap_action_simple_ioremap-fix.patch
> 
> This patch will shortly appear at
>      https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-add-mmap_action_simple_ioremap-fix.patch
> 
> This patch will later appear in the mm-new branch at
>     git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> 
> Note, mm-new is a provisional staging ground for work-in-progress
> patches, and acceptance into mm-new is a notification for others take
> notice and to finish up reviews.  Please do not hesitate to respond to
> review feedback and post updated versions to replace or incrementally
> fixup patches in mm-new.
> 
> The mm-new branch of mm.git is not included in linux-next
> 
> If a few days of testing in mm-new is successful, the patch will me moved
> into mm.git's mm-unstable branch, which is included in linux-next
> 
> Before you just go and hit "reply", please:
>    a) Consider who else should be cc'ed
>    b) Prefer to cc a suitable mailing list as well
>    c) Ideally: find the original patch on the mailing list and do a
>       reply-to-all to that, adding suitable additional cc's
> 
> *** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
> 
> The -mm tree is included into linux-next via various
> branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> and is updated there most days
> 
> ------------------------------------------------------
> From: Andrew Morton <akpm@linux-foundation.org>
> Subject: mm-add-mmap_action_simple_ioremap-fix
> Date: Sat Mar 14 04:19:36 PM PDT 2026
> 
> randyfy mmap_prepare.rst
> 
> Cc: "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
> Cc: Randy Dunlap <rdunlap@infradead.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> ---

That change LGTM.
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>


Not related to this patch, but at line 98 of
mmap_prepare.rst I now see a reference to
struct vma_area_desc. I think that should be
struct vm_area_desc. (?)

For some reason 'git grep vma_area_desc' does not even
find one occurrence of that string for me, while
good ole 'grep -rs vma_area_desc' does find it.

> 
>  Documentation/filesystems/mmap_prepare.rst |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/Documentation/filesystems/mmap_prepare.rst~mm-add-mmap_action_simple_ioremap-fix
> +++ a/Documentation/filesystems/mmap_prepare.rst
> @@ -127,7 +127,7 @@ pointer. These are:
>  * mmap_action_ioremap_full() - Same as mmap_action_ioremap(), only remaps
>    the entire mapping from ``start_pfn`` onward.
>  
> -* `mmap_action_simple_ioremap()` - Sets up an I/O remap from a specified
> +* mmap_action_simple_ioremap() - Sets up an I/O remap from a specified
>    physical address and over a specified length.
>  
>  **NOTE:** The ``action`` field should never normally be manipulated directly,
> _
> 
> Patches currently in -mm which might be from akpm@linux-foundation.org are
> 
> maple_tree-start-using-maple-copy-node-for-destination-checkpatch-fixes.patch
> maple_tree-add-cp_is_new_root-helper-fix-fix.patch
> mm-centralizefix-comments-about-compound_mapcount-in-new-sync_with_folio_pmd_zap-fix.patch
> mm-memcontrol-convert-objcg-to-be-per-memcg-per-node-type-fix-fix.patch
> mm-rename-zone-lock-to-zone-_lock-fix.patch
> mm-page_reporting-add-page_reporting_order_unspecified-fix.patch
> mm-various-small-mmap_prepare-cleanups-fix.patch
> mm-add-mmap_action_simple_ioremap-fix.patch
> mm-add-mmap_action_map_kernel_pages-fix.patch
> kernel-panic-increase-buffer-size-for-verbose-taint-logging-fix.patch
> decode_stacktrace-decode-caller-address-checkpatch-fixes.patch
> 

-- 
~Randy

Re: + mm-add-mmap_action_simple_ioremap-fix.patch added to mm-new branch

[Lorenzo Stoakes (Oracle)]

On Sun, Mar 15, 2026 at 03:28:21PM -0700, Randy Dunlap wrote:
>
>
> On 3/14/26 4:21 PM, Andrew Morton wrote:
> > The patch titled
> >      Subject: mm-add-mmap_action_simple_ioremap-fix
> > has been added to the -mm mm-new branch.  Its filename is
> >      mm-add-mmap_action_simple_ioremap-fix.patch
> >
> > This patch will shortly appear at
> >      https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-add-mmap_action_simple_ioremap-fix.patch
> >
> > This patch will later appear in the mm-new branch at
> >     git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> >
> > Note, mm-new is a provisional staging ground for work-in-progress
> > patches, and acceptance into mm-new is a notification for others take
> > notice and to finish up reviews.  Please do not hesitate to respond to
> > review feedback and post updated versions to replace or incrementally
> > fixup patches in mm-new.
> >
> > The mm-new branch of mm.git is not included in linux-next
> >
> > If a few days of testing in mm-new is successful, the patch will me moved
> > into mm.git's mm-unstable branch, which is included in linux-next
> >
> > Before you just go and hit "reply", please:
> >    a) Consider who else should be cc'ed
> >    b) Prefer to cc a suitable mailing list as well
> >    c) Ideally: find the original patch on the mailing list and do a
> >       reply-to-all to that, adding suitable additional cc's
> >
> > *** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
> >
> > The -mm tree is included into linux-next via various
> > branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > and is updated there most days
> >
> > ------------------------------------------------------
> > From: Andrew Morton <akpm@linux-foundation.org>
> > Subject: mm-add-mmap_action_simple_ioremap-fix
> > Date: Sat Mar 14 04:19:36 PM PDT 2026
> >
> > randyfy mmap_prepare.rst
> >
> > Cc: "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
> > Cc: Randy Dunlap <rdunlap@infradead.org>
> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> > ---
>
> That change LGTM.
> Acked-by: Randy Dunlap <rdunlap@infradead.org>
> Tested-by: Randy Dunlap <rdunlap@infradead.org>
>
>
> Not related to this patch, but at line 98 of
> mmap_prepare.rst I now see a reference to
> struct vma_area_desc. I think that should be
> struct vm_area_desc. (?)
>

Ack will fold fix into respin!

> For some reason 'git grep vma_area_desc' does not even
> find one occurrence of that string for me, while
> good ole 'grep -rs vma_area_desc' does find it.
>
> >
> >  Documentation/filesystems/mmap_prepare.rst |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > --- a/Documentation/filesystems/mmap_prepare.rst~mm-add-mmap_action_simple_ioremap-fix
> > +++ a/Documentation/filesystems/mmap_prepare.rst
> > @@ -127,7 +127,7 @@ pointer. These are:
> >  * mmap_action_ioremap_full() - Same as mmap_action_ioremap(), only remaps
> >    the entire mapping from ``start_pfn`` onward.
> >
> > -* `mmap_action_simple_ioremap()` - Sets up an I/O remap from a specified
> > +* mmap_action_simple_ioremap() - Sets up an I/O remap from a specified
> >    physical address and over a specified length.
> >
> >  **NOTE:** The ``action`` field should never normally be manipulated directly,
> > _
> >
> > Patches currently in -mm which might be from akpm@linux-foundation.org are
> >
> > maple_tree-start-using-maple-copy-node-for-destination-checkpatch-fixes.patch
> > maple_tree-add-cp_is_new_root-helper-fix-fix.patch
> > mm-centralizefix-comments-about-compound_mapcount-in-new-sync_with_folio_pmd_zap-fix.patch
> > mm-memcontrol-convert-objcg-to-be-per-memcg-per-node-type-fix-fix.patch
> > mm-rename-zone-lock-to-zone-_lock-fix.patch
> > mm-page_reporting-add-page_reporting_order_unspecified-fix.patch
> > mm-various-small-mmap_prepare-cleanups-fix.patch
> > mm-add-mmap_action_simple_ioremap-fix.patch
> > mm-add-mmap_action_map_kernel_pages-fix.patch
> > kernel-panic-increase-buffer-size-for-verbose-taint-logging-fix.patch
> > decode_stacktrace-decode-caller-address-checkpatch-fixes.patch
> >
>
> --
> ~Randy

Cheers, Lorenzo