From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jia He Date: Thu, 09 Jul 2020 02:06:28 +0000 Subject: [PATCH v3 5/6] device-dax: use fallback nid when numa_node is invalid Message-Id: <20200709020629.91671-6-justin.he@arm.com> List-Id: References: <20200709020629.91671-1-justin.he@arm.com> In-Reply-To: <20200709020629.91671-1-justin.he@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="macroman" Content-Transfer-Encoding: base64 To: Catalin Marinas , Will Deacon , Tony Luck , Fenghua Yu , Yoshinori Sato , Rich Felker , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , David Hildenbrand Cc: x86@kernel.org, "H. Peter Anvin" , Andrew Morton , Baoquan He , Chuhong Yuan , Mike Rapoport , Masahiro Yamada , Michal Hocko , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, linux-nvdimm@lists.01.org, linux-mm@kvack.org, Jonathan Cameron , Kaly Xin , Jia He bnVtYV9vZmYgaXMgc2V0IHVuY29uZGl0aW9uYWxseSBhdCB0aGUgZW5kIG9mIGR1bW15X251bWFf aW5pdCgpLApldmVuIHdpdGggYSBmYWtlIG51bWEgbm9kZS4gQUNQSSBkZXRlY3RzIG5vZGUgaWQg YXMgTlVNQV9OT19OT0RFKC0xKSBpbgphY3BpX21hcF9weG1fdG9fbm9kZSgpIGJlY2F1c2UgaXQg cmVnYXJkcyBudW1hX29mZiBhcyB0dXJuaW5nIG9mZiB0aGUgbnVtYQpub2RlLiBIZW5jZSBkZXZf ZGF4LT50YXJnZXRfbm9kZSBpcyBOVU1BX05PX05PREUgb24gYXJtNjQgd2l0aCBmYWtlIG51bWEu CgpXaXRob3V0IHRoaXMgcGF0Y2gsIHBtZW0gY2FuJ3QgYmUgcHJvYmVkIGFzIGEgUkFNIGRldmlj ZSBvbiBhcm02NCBpZiBTUkFUIHRhYmxlCmlzbid0IHByZXNlbnQ6CiRuZGN0bCBjcmVhdGUtbmFt ZXNwYWNlIC1mZSBuYW1lc3BhY2UwLjAgLS1tb2Rl3nZkYXggLS1tYXDediAtcyAxZyAtYSA2NEsK a21lbSBkYXgwLjA6IHJlamVjdGluZyBEQVggcmVnaW9uIFttZW0gMHgyNDA0MDAwMDAtMHgyYmZm ZmZmZmZdIHdpdGggaW52YWxpZCBub2RlOiAtMQprbWVtOiBwcm9iZSBvZiBkYXgwLjAgZmFpbGVk IHdpdGggZXJyb3IgLTIyCgpUaGlzIGZpeGVzIGl0IGJ5IHVzaW5nIGZhbGxiYWNrIG1lbW9yeV9h ZGRfcGh5c2FkZHJfdG9fbmlkKCkgYXMgbmlkLgoKU3VnZ2VzdGVkLWJ5OiBEYXZpZCBIaWxkZW5i cmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT4KU2lnbmVkLW9mZi1ieTogSmlhIEhlIDxqdXN0aW4uaGVA YXJtLmNvbT4KLS0tCiBkcml2ZXJzL2RheC9rbWVtLmMgfCAyMSArKysrKysrKysrKysrLS0tLS0t LS0KIDEgZmlsZSBjaGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCA4IGRlbGV0aW9ucygtKQoKZGlm ZiAtLWdpdCBhL2RyaXZlcnMvZGF4L2ttZW0uYyBiL2RyaXZlcnMvZGF4L2ttZW0uYwppbmRleCAy NzVhYTVmODczOTkuLjIxOGY2NjA1Nzk5NCAxMDA2NDQKLS0tIGEvZHJpdmVycy9kYXgva21lbS5j CisrKyBiL2RyaXZlcnMvZGF4L2ttZW0uYwpAQCAtMzEsMjIgKzMxLDIzIEBAIGludCBkZXZfZGF4 X2ttZW1fcHJvYmUoc3RydWN0IGRldmljZSAqZGV2KQogCWludCBudW1hX25vZGU7CiAJaW50IHJj OwogCisJLyogSG90cGx1ZyBzdGFydGluZyBhdCB0aGUgYmVnaW5uaW5nIG9mIHRoZSBuZXh0IGJs b2NrOiAqLworCWttZW1fc3RhcnQgPSBBTElHTihyZXMtPnN0YXJ0LCBtZW1vcnlfYmxvY2tfc2l6 ZV9ieXRlcygpKTsKKwogCS8qCiAJICogRW5zdXJlIGdvb2QgTlVNQSBpbmZvcm1hdGlvbiBmb3Ig dGhlIHBlcnNpc3RlbnQgbWVtb3J5LgogCSAqIFdpdGhvdXQgdGhpcyBjaGVjaywgdGhlcmUgaXMg YSByaXNrIHRoYXQgc2xvdyBtZW1vcnkKIAkgKiBjb3VsZCBiZSBtaXhlZCBpbiBhIG5vZGUgd2l0 aCBmYXN0ZXIgbWVtb3J5LCBjYXVzaW5nCi0JICogdW5hdm9pZGFibGUgcGVyZm9ybWFuY2UgaXNz dWVzLgorCSAqIHVuYXZvaWRhYmxlIHBlcmZvcm1hbmNlIGlzc3Vlcy4gRnVydGhlcm1vcmUsIGZh bGxiYWNrIG5vZGUKKwkgKiBpZCBjYW4gYmUgdXNlZCB3aGVuIG51bWFfbm9kZSBpcyBpbnZhbGlk LgogCSAqLwogCW51bWFfbm9kZSA9IGRldl9kYXgtPnRhcmdldF9ub2RlOwogCWlmIChudW1hX25v ZGUgPCAwKSB7Ci0JCWRldl93YXJuKGRldiwgInJlamVjdGluZyBEQVggcmVnaW9uICVwUiB3aXRo IGludmFsaWQgbm9kZTogJWRcbiIsCi0JCQkgcmVzLCBudW1hX25vZGUpOwotCQlyZXR1cm4gLUVJ TlZBTDsKKwkJbnVtYV9ub2RlID0gbWVtb3J5X2FkZF9waHlzYWRkcl90b19uaWQoa21lbV9zdGFy dCk7CisJCWRldl9pbmZvKGRldiwgInVzaW5nIG5pZCAlZCBmb3IgREFYIHJlZ2lvbiB3aXRoIHVu ZGVmaW5lZCBuaWQgJXBSXG4iLAorCQkJbnVtYV9ub2RlLCByZXMpOwogCX0KIAotCS8qIEhvdHBs dWcgc3RhcnRpbmcgYXQgdGhlIGJlZ2lubmluZyBvZiB0aGUgbmV4dCBibG9jazogKi8KLQlrbWVt X3N0YXJ0ID0gQUxJR04ocmVzLT5zdGFydCwgbWVtb3J5X2Jsb2NrX3NpemVfYnl0ZXMoKSk7Ci0K IAlrbWVtX3NpemUgPSByZXNvdXJjZV9zaXplKHJlcyk7CiAJLyogQWRqdXN0IHRoZSBzaXplIGRv d24gdG8gY29tcGVuc2F0ZSBmb3IgbW92aW5nIHVwIGttZW1fc3RhcnQ6ICovCiAJa21lbV9zaXpl IC09IGttZW1fc3RhcnQgLSByZXMtPnN0YXJ0OwpAQCAtMTAwLDE1ICsxMDEsMTkgQEAgc3RhdGlj IGludCBkZXZfZGF4X2ttZW1fcmVtb3ZlKHN0cnVjdCBkZXZpY2UgKmRldikKIAlyZXNvdXJjZV9z aXplX3Qga21lbV9zdGFydCA9IHJlcy0+c3RhcnQ7CiAJcmVzb3VyY2Vfc2l6ZV90IGttZW1fc2l6 ZSA9IHJlc291cmNlX3NpemUocmVzKTsKIAljb25zdCBjaGFyICpyZXNfbmFtZSA9IHJlcy0+bmFt ZTsKKwlpbnQgbnVtYV9ub2RlID0gZGV2X2RheC0+dGFyZ2V0X25vZGU7CiAJaW50IHJjOwogCisJ aWYgKG51bWFfbm9kZSA8IDApCisJCW51bWFfbm9kZSA9IG1lbW9yeV9hZGRfcGh5c2FkZHJfdG9f bmlkKGttZW1fc3RhcnQpOworCiAJLyoKIAkgKiBXZSBoYXZlIG9uZSBzaG90IGZvciByZW1vdmlu ZyBtZW1vcnksIGlmIHNvbWUgbWVtb3J5IGJsb2NrcyB3ZXJlIG5vdAogCSAqIG9mZmxpbmUgcHJp b3IgdG8gY2FsbGluZyB0aGlzIGZ1bmN0aW9uIHJlbW92ZV9tZW1vcnkoKSB3aWxsIGZhaWwsIGFu ZAogCSAqIHRoZXJlIGlzIG5vIHdheSB0byBob3RyZW1vdmUgdGhpcyBtZW1vcnkgdW50aWwgcmVi b290IGJlY2F1c2UgZGV2aWNlCiAJICogdW5iaW5kIHdpbGwgc3VjY2VlZCBldmVuIGlmIHdlIHJl dHVybiBmYWlsdXJlLgogCSAqLwotCXJjID0gcmVtb3ZlX21lbW9yeShkZXZfZGF4LT50YXJnZXRf bm9kZSwga21lbV9zdGFydCwga21lbV9zaXplKTsKKwlyYyA9IHJlbW92ZV9tZW1vcnkobnVtYV9u b2RlLCBrbWVtX3N0YXJ0LCBrbWVtX3NpemUpOwogCWlmIChyYykgewogCQlhbnlfaG90cmVtb3Zl X2ZhaWxlZCA9IHRydWU7CiAJCWRldl9lcnIoZGV2LAotLSAKMi4xNy4xCg==