openwrt/upstream - upstream openwrt

about summary refs log tree commit diff stats

path: root/package/libnl-tiny/src/include/linux/netlink.h

diff options

author	Gabor Juhos <juhosg@openwrt.org>	2010-03-03 09:40:17 +0000
committer	Gabor Juhos <juhosg@openwrt.org>	2010-03-03 09:40:17 +0000
commit	58ec1289d9dfdb8dde4761e4e3c42c9c4bc140e7 (patch)
tree	c4e6e254251ef1832c686264d05afb412eaaa86f /package/libnl-tiny/src/include/linux/netlink.h
parent	111ae3e04b422caf594e78bdcb291fcfebd242b1 (diff)
download	upstream-58ec1289d9dfdb8dde4761e4e3c42c9c4bc140e7.tar.gz upstream-58ec1289d9dfdb8dde4761e4e3c42c9c4bc140e7.tar.bz2 upstream-58ec1289d9dfdb8dde4761e4e3c42c9c4bc140e7.zip

ar71xx: refresh 2.6.33 patches

SVN-Revision: 19960

Diffstat (limited to 'package/libnl-tiny/src/include/linux/netlink.h')

0 files changed, 0 insertions, 0 deletions

or: #ffffcc } .highlight { background: #ffffff; } .highlight .c { color: #888888 } /* Comment */ .highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */

From: Tobias Wolf <dev-NTEO@vplace.de>
Date: Wed, 30 Nov 2016 09:16:41 +0100
Subject: [PATCH] mm: Fix alloc_node_mem_map with ARCH_PFN_OFFSET
 calculation

Dear folks,

An rt288x (ralink) based router (Belkin F5D8235 v1) does not boot with any
kernel beyond version 4.3 resulting in:

BUG: Bad page state in process swapper  pfn:086ac

bisect resulted in:

a1c34a3bf00af2cede839879502e12dc68491ad5 is the first bad commit
commit a1c34a3bf00af2cede839879502e12dc68491ad5
Author: Laura Abbott <laura@labbott.name>
Date:   Thu Nov 5 18:48:46 2015 -0800

    mm: Don't offset memmap for flatmem

    Srinivas Kandagatla reported bad page messages when trying to remove the
    bottom 2MB on an ARM based IFC6410 board

      BUG: Bad page state in process swapper  pfn:fffa8
      page:ef7fb500 count:0 mapcount:0 mapping:  (null) index:0x0
      flags: 0x96640253(locked|error|dirty|active|arch_1|reclaim|mlocked)
      page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
      bad because of flags:
      flags: 0x200041(locked|active|mlocked)
      Modules linked in:
      CPU: 0 PID: 0 Comm: swapper Not tainted 3.19.0-rc3-00007-g412f9ba-dirty
#816
      Hardware name: Qualcomm (Flattened Device Tree)
        unwind_backtrace
        show_stack
        dump_stack
        bad_page
        free_pages_prepare
        free_hot_cold_page
        __free_pages
        free_highmem_page
        mem_init
        start_kernel
      Disabling lock debugging due to kernel taint
    [...]
:040000 040000 2de013c372345fd471cd58f0553c9b38b0ef1cc4
0a8156f848733dfa21e16c196dfb6c0a76290709 M      mm

This fix for ARM does not account ARCH_PFN_OFFSET for mem_map as later used by
page_to_pfn anymore.

The following output was generated with two hacked in printk statements:

printk("before %p vs. %p or %p\n", mem_map, mem_map - offset, mem_map -
(pgdat->node_start_pfn - ARCH_PFN_OFFSET));
		if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
			mem_map -= offset + (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
printk("after %p\n", mem_map);

Output:

[    0.000000] before 8861b280 vs. 8861b280 or 8851b280
[    0.000000] after 8851b280

As seen in the first line mem_map with subtraction of offset does not equal the
mem_map after subtraction of ARCH_PFN_OFFSET.

After adding the offset of ARCH_PFN_OFFSET as well to mem_map as the
previously calculated offset is zero for the named platform it is able to boot
4.4 and 4.9-rc7 again.

Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
---

--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5326,7 +5326,7 @@ static void __init_refok alloc_node_mem_
 		mem_map = NODE_DATA(0)->node_mem_map;
 #if defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) || defined(CONFIG_FLATMEM)
 		if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
-			mem_map -= offset;
+			mem_map -= offset + (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
 #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
 	}
 #endif


context:
space:
mode: