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mm/filemap: increase usage of folio_next_index() helper
Simplify code pattern of 'folio->index + folio_nr_pages(folio)' by using the existing helper folio_next_index() in filemap_map_pages(). Link: https://lkml.kernel.org/r/20230921081535.3398-1-duminjie@vivo.com Signed-off-by: Minjie Du <duminjie@vivo.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -3591,7 +3591,7 @@ vm_fault_t filemap_map_pages(struct vm_fault *vmf,
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addr += (xas.xa_index - last_pgoff) << PAGE_SHIFT;
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vmf->pte += xas.xa_index - last_pgoff;
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last_pgoff = xas.xa_index;
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end = folio->index + folio_nr_pages(folio) - 1;
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end = folio_next_index(folio) - 1;
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nr_pages = min(end, end_pgoff) - xas.xa_index + 1;
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if (!folio_test_large(folio))
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