1. 12 Feb, 2010 3 commits
    • Yinghai Lu's avatar
      sparsemem: Put mem map for one node together. · 9bdac914
      Yinghai Lu authored
      Add vmemmap_alloc_block_buf for mem map only.
      
      It will fallback to the old way if it cannot get a block that big.
      
      Before this patch, when a node have 128g ram installed, memmap are
      split into two parts or more.
      [    0.000000]  [ffffea0000000000-ffffea003fffffff] PMD -> [ffff880100600000-ffff88013e9fffff] on node 1
      [    0.000000]  [ffffea0040000000-ffffea006fffffff] PMD -> [ffff88013ec00000-ffff88016ebfffff] on node 1
      [    0.000000]  [ffffea0070000000-ffffea007fffffff] PMD -> [ffff882000600000-ffff8820105fffff] on node 0
      [    0.000000]  [ffffea0080000000-ffffea00bfffffff] PMD -> [ffff882010800000-ffff8820507fffff] on node 0
      [    0.000000]  [ffffea00c0000000-ffffea00dfffffff] PMD -> [ffff882050a00000-ffff8820709fffff] on node 0
      [    0.000000]  [ffffea00e0000000-ffffea00ffffffff] PMD -> [ffff884000600000-ffff8840205fffff] on node 2
      [    0.000000]  [ffffea0100000000-ffffea013fffffff] PMD -> [ffff884020800000-ffff8840607fffff] on node 2
      [    0.000000]  [ffffea0140000000-ffffea014fffffff] PMD -> [ffff884060a00000-ffff8840709fffff] on node 2
      [    0.000000]  [ffffea0150000000-ffffea017fffffff] PMD -> [ffff886000600000-ffff8860305fffff] on node 3
      [    0.000000]  [ffffea0180000000-ffffea01bfffffff] PMD -> [ffff886030800000-ffff8860707fffff] on node 3
      [    0.000000]  [ffffea01c0000000-ffffea01ffffffff] PMD -> [ffff888000600000-ffff8880405fffff] on node 4
      [    0.000000]  [ffffea0200000000-ffffea022fffffff] PMD -> [ffff888040800000-ffff8880707fffff] on node 4
      [    0.000000]  [ffffea0230000000-ffffea023fffffff] PMD -> [ffff88a000600000-ffff88a0105fffff] on node 5
      [    0.000000]  [ffffea0240000000-ffffea027fffffff] PMD -> [ffff88a010800000-ffff88a0507fffff] on node 5
      [    0.000000]  [ffffea0280000000-ffffea029fffffff] PMD -> [ffff88a050a00000-ffff88a0709fffff] on node 5
      [    0.000000]  [ffffea02a0000000-ffffea02bfffffff] PMD -> [ffff88c000600000-ffff88c0205fffff] on node 6
      [    0.000000]  [ffffea02c0000000-ffffea02ffffffff] PMD -> [ffff88c020800000-ffff88c0607fffff] on node 6
      [    0.000000]  [ffffea0300000000-ffffea030fffffff] PMD -> [ffff88c060a00000-ffff88c0709fffff] on node 6
      [    0.000000]  [ffffea0310000000-ffffea033fffffff] PMD -> [ffff88e000600000-ffff88e0305fffff] on node 7
      [    0.000000]  [ffffea0340000000-ffffea037fffffff] PMD -> [ffff88e030800000-ffff88e0707fffff] on node 7
      
      after patch will get
      [    0.000000]  [ffffea0000000000-ffffea006fffffff] PMD -> [ffff880100200000-ffff88016e5fffff] on node 0
      [    0.000000]  [ffffea0070000000-ffffea00dfffffff] PMD -> [ffff882000200000-ffff8820701fffff] on node 1
      [    0.000000]  [ffffea00e0000000-ffffea014fffffff] PMD -> [ffff884000200000-ffff8840701fffff] on node 2
      [    0.000000]  [ffffea0150000000-ffffea01bfffffff] PMD -> [ffff886000200000-ffff8860701fffff] on node 3
      [    0.000000]  [ffffea01c0000000-ffffea022fffffff] PMD -> [ffff888000200000-ffff8880701fffff] on node 4
      [    0.000000]  [ffffea0230000000-ffffea029fffffff] PMD -> [ffff88a000200000-ffff88a0701fffff] on node 5
      [    0.000000]  [ffffea02a0000000-ffffea030fffffff] PMD -> [ffff88c000200000-ffff88c0701fffff] on node 6
      [    0.000000]  [ffffea0310000000-ffffea037fffffff] PMD -> [ffff88e000200000-ffff88e0701fffff] on node 7
      
      -v2: change buf to vmemmap_buf instead according to Ingo
           also add CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER according to Ingo
      -v3: according to Andrew, use sizeof(name) instead of hard coded 15
      Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
      LKML-Reference: <1265793639-15071-19-git-send-email-yinghai@kernel.org>
      Cc: Christoph Lameter <cl@linux-foundation.org>
      Acked-by: default avatarChristoph Lameter <cl@linux-foundation.org>
      Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
      9bdac914
    • Yinghai Lu's avatar
      sparsemem: Put usemap for one node together · a4322e1b
      Yinghai Lu authored
      Could save some buffer space instead of applying one by one.
      
      Could help that system that is going to use early_res instead of bootmem
      less entries in early_res make search more faster on system with more memory.
      Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
      LKML-Reference: <1265793639-15071-18-git-send-email-yinghai@kernel.org>
      Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
      a4322e1b
    • Yinghai Lu's avatar
      x86: Make 64 bit use early_res instead of bootmem before slab · 08677214
      Yinghai Lu authored
      Finally we can use early_res to replace bootmem for x86_64 now.
      
      Still can use CONFIG_NO_BOOTMEM to enable it or not.
      
      -v2: fix 32bit compiling about MAX_DMA32_PFN
      -v3: folded bug fix from LKML message below
      Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
      LKML-Reference: <4B747239.4070907@kernel.org>
      Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
      08677214
  2. 11 Feb, 2010 15 commits
  3. 10 Feb, 2010 10 commits
  4. 09 Feb, 2010 12 commits