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bidkmpwDVEbGFZvrsGJO7Bxfes+Cbip5RdsCnAvBYSSeYOC/lmr6aWpAMPD5K+c4FQBlNFaa2jM T0thAf1nRstg6m+lc2RhtLV/iO1EmICXWclwFlVKCGF4Zj73GgPdYmXKffn2gq1XEwjscWFf2zv rR2f29DMtKQnTUBci9F5ZsmACBwgQpRd5xQ6RrSKDquVF0oI9/QWMyHPqmAWba5BXPOEMVMbDtM fvmI3f01UhMU/FW0BiMD/Hl3F4vCInj1KVds7JgoRaxB6wbZ/IU/7+Nb6MLG6HIjpfdoLXn6rBv IW0jR7Cm X-Proofpoint-ORIG-GUID: ePIjj2D9_D3i-dHOAftPEbnPBb8p-1NG On Fri, Apr 25, 2025 at 10:17:15AM +0200, David Hildenbrand wrote: > track_pfn() does not exist, let's simply refer to it as "pfnmap > tracking". > > Signed-off-by: David Hildenbrand LGTM, so: Reviewed-by: Lorenzo Stoakes > --- > mm/io-mapping.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/io-mapping.c b/mm/io-mapping.c > index 01b3627999304..7266441ad0834 100644 > --- a/mm/io-mapping.c > +++ b/mm/io-mapping.c > @@ -21,7 +21,7 @@ int io_mapping_map_user(struct io_mapping *iomap, struct vm_area_struct *vma, > if (WARN_ON_ONCE((vma->vm_flags & expected_flags) != expected_flags)) > return -EINVAL; > > - /* We rely on prevalidation of the io-mapping to skip track_pfn(). */ > + /* We rely on prevalidation of the io-mapping to skip pfnmap tracking. */ > return remap_pfn_range_notrack(vma, addr, pfn, size, > __pgprot((pgprot_val(iomap->prot) & _PAGE_CACHE_MASK) | > (pgprot_val(vma->vm_page_prot) & ~_PAGE_CACHE_MASK))); > -- > 2.49.0 > However this doesn't apply after commit b8d8f1830bab ("mm/io-mapping: precompute remap protection flags for clarity"), so will need a rebase :) seems this was cleaned up to separate the __pgprot() bit from the remap_pfn_range_notrack(). Note of course this commit hash is from mm-new so quite changeable... :)