[{"id":3677313,"web_url":"http://patchwork.ozlabs.org/comment/3677313/","msgid":"","list_archive_url":null,"date":"2026-04-14T16:55:07","subject":"Re: [PATCH v9 4/6] elf: Align large load segments to PMD huge page\n size for THP","submitter":{"id":67598,"url":"http://patchwork.ozlabs.org/api/people/67598/","name":"Wilco Dijkstra","email":"Wilco.Dijkstra@arm.com"},"content":"Hi Rui,\n\n> Mapping segments that are at least the size of a PMD huge page to\n> huge-page-aligned addresses helps make them eligible for Transparent\n> Huge Pages (THP).\n\nFormatting changes look good.\n\nReviewed-by: Wilco Dijkstra  \n\nCheers,\nWilco\n\n+  if (thp_mode == thp_mode_always\n+      && thp_pagesize <= MAX_THP_PAGESIZE\n+      && ((c->mapstart | c->mapoff) & (thp_pagesize - 1)) == 0\n+      && (c->mapend - c->mapstart) >= thp_pagesize\n+      && p_align_max < thp_pagesize\n+      && (c->prot & PROT_WRITE) == 0)\n+    return thp_pagesize;\n+\n+  return p_align_max;\n+}\n\nOK\n\n+extern ElfW (Addr) _dl_map_segment_align\n+  (const struct loadcmd *, ElfW (Addr)) attribute_hidden;\n\nOK","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","libc-alpha@sourceware.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","libc-alpha@sourceware.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256\n header.s=selector1 header.b=QU7BDOHG;\n\tdkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com\n header.a=rsa-sha256 header.s=selector1 header.b=QU7BDOHG;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org\n (client-ip=38.145.34.32; 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