Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls

[PATCH V2 0/8] btrfs: convert kmaps to core page calls · <hidden> · 2021-02-10
[PATCH V2 1/8] mm/highmem: Lift memcpy_[to|from]_page to core · <hidden> · 2021-02-10
Re: [PATCH V2 1/8] mm/highmem: Lift memcpy_[to|from]_page to core · Chaitanya Kulkarni <hidden> · 2021-02-10
Re: [PATCH V2 1/8] mm/highmem: Lift memcpy_[to|from]_page to core · Christoph Hellwig <hch@infradead.org> · 2021-02-10
[PATCH V2 2/8] mm/highmem: Convert memcpy_[to|from]_page() to kmap_local_page() · <hidden> · 2021-02-10
Re: [PATCH V2 2/8] mm/highmem: Convert memcpy_[to|from]_page() to kmap_local_page() · Chaitanya Kulkarni <hidden> · 2021-02-10
Re: [PATCH V2 2/8] mm/highmem: Convert memcpy_[to|from]_page() to kmap_local_page() · Christoph Hellwig <hch@infradead.org> · 2021-02-10
[PATCH V2 3/8] mm/highmem: Introduce memcpy_page(), memmove_page(), and memset_page() · <hidden> · 2021-02-10
Re: [PATCH V2 3/8] mm/highmem: Introduce memcpy_page(), memmove_page(), and memset_page() · Chaitanya Kulkarni <hidden> · 2021-02-10
Re: [PATCH V2 3/8] mm/highmem: Introduce memcpy_page(), memmove_page(), and memset_page() · Christoph Hellwig <hch@infradead.org> · 2021-02-10
[PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · <hidden> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Chaitanya Kulkarni <hidden> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Ira Weiny <hidden> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Christoph Hellwig <hch@infradead.org> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Ira Weiny <hidden> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Christoph Hellwig <hch@infradead.org> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Ira Weiny <hidden> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Matthew Wilcox <willy@infradead.org> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · Ira Weiny <hidden> · 2021-02-10
Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · David Sterba <hidden> · 2021-02-11
[PATCH V2.1] mm/highmem: Add VM_BUG_ON() to mem*_page() calls · <hidden> · 2021-02-10
[PATCH V2 5/8] iov_iter: Remove memzero_page() in favor of zero_user() · <hidden> · 2021-02-10
Re: [PATCH V2 5/8] iov_iter: Remove memzero_page() in favor of zero_user() · Christoph Hellwig <hch@infradead.org> · 2021-02-10
[PATCH V2 6/8] btrfs: use memcpy_[to|from]_page() and kmap_local_page() · <hidden> · 2021-02-10
Re: [PATCH V2 6/8] btrfs: use memcpy_[to|from]_page() and kmap_local_page() · Christoph Hellwig <hch@infradead.org> · 2021-02-10
[PATCH V2 7/8] btrfs: use copy_highpage() instead of 2 kmaps() · <hidden> · 2021-02-10
Re: [PATCH V2 7/8] btrfs: use copy_highpage() instead of 2 kmaps() · Christoph Hellwig <hch@infradead.org> · 2021-02-10
[PATCH V2 8/8] btrfs: convert to zero_user() · <hidden> · 2021-02-10
Re: [PATCH V2 8/8] btrfs: convert to zero_user() · Christoph Hellwig <hch@infradead.org> · 2021-02-10
Re: [PATCH V2 0/8] btrfs: convert kmaps to core page calls · David Sterba <hidden> · 2021-02-11
Re: [PATCH V2 0/8] btrfs: convert kmaps to core page calls · Ira Weiny <hidden> · 2021-02-11

From: Christoph Hellwig <hch@infradead.org>
Date: 2021-02-10 12:56:08
Also in: lkml

On Tue, Feb 09, 2021 at 10:22:17PM -0800, ira.weiny@intel.com wrote:

From: Ira Weiny <redacted>

Add VM_BUG_ON bounds checks to ensure the newly lifted and created page
memory operations do not result in corrupted data in neighbor pages and
to make them consistent with zero_user().[1][2]

s/VM_BUG_ON/BUG_ON/g ?

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

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