Re: [PATCH v7 1/4] mm: add NR_SECONDARY_PAGETABLE to count secondary page table uses.

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On Wed, Aug 24, 2022 at 6:42 AM Ryan Roberts <ryan.roberts@xxxxxxx> wrote:
>
> > diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
> > index e7aafc82be99..898c99eae8e4 100644
> > --- a/Documentation/filesystems/proc.rst
> > +++ b/Documentation/filesystems/proc.rst
> > @@ -982,6 +982,7 @@ Example output. You may not have all of these fields.
> >       SUnreclaim:       142336 kB
> >       KernelStack:       11168 kB
> >       PageTables:        20540 kB
> > +    SecPageTables:         0 kB
> >       NFS_Unstable:          0 kB
> >       Bounce:                0 kB
> >       WritebackTmp:          0 kB
> > @@ -1090,6 +1091,9 @@ KernelStack
> >                 Memory consumed by the kernel stacks of all tasks
> >   PageTables
> >                 Memory consumed by userspace page tables
> > +SecPageTables
> > +              Memory consumed by secondary page tables, this currently
> > +              currently includes KVM mmu allocations on x86 and arm64.
>
> nit: I think you have a typo here: "currently currently".

Sorry I missed this, thanks for catching it. The below diff fixes it
(let me know if I need to send v8 for this, hopefully not).

diff --git a/Documentation/filesystems/proc.rst
b/Documentation/filesystems/proc.rst
index 898c99eae8e4..0b3778ec12e1 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -1093,7 +1093,7 @@ PageTables
               Memory consumed by userspace page tables
 SecPageTables
               Memory consumed by secondary page tables, this currently
-              currently includes KVM mmu allocations on x86 and arm64.
+              includes KVM mmu allocations on x86 and arm64.
 NFS_Unstable
               Always zero. Previous counted pages which had been written to
               the server, but has not been committed to stable storage.

>
> Thanks,
> Ryan



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