Re: [PATCH v7 1/4] mm: add NR_SECONDARY_PAGETABLE to count secondary page table uses.
From: Yosry Ahmed <hidden>
Date: 2022-08-24 17:26:27
Also in:
cgroups, kvm, kvmarm, linux-mm, lkml
On Wed, Aug 24, 2022 at 6:42 AM Ryan Roberts [off-list ref] wrote:
quoted
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.rstb/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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