)]}'
{
  "commit": "e1b9aa3f47242e757c776a3771bb6613e675bf9c",
  "tree": "aa81121a42fdc7f2f1cc916db67558ec3d0f5017",
  "parents": [
    "ae9e6bc9f74f8247cbca50a6a93c80e0d686fa19"
  ],
  "author": {
    "name": "Christoph Lameter",
    "email": "cl@linux.com",
    "time": "Thu Apr 02 13:21:44 2009 +0900"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Wed Apr 08 18:31:31 2009 +0200"
  },
  "message": "percpu: remove rbtree and use page-\u003eindex instead\n\nImpact: use page-\u003eindex for addr to chunk mapping instead of dedicated rbtree\n\nThe rbtree is used to determine the chunk from the virtual address.\nHowever, we can already determine the page struct from a virtual\naddress and there are several unused fields in page struct used by\nvmalloc.  Use the index field to store a pointer to the chunk. Then\nthere is no need anymore for an rbtree.\n\ntj: * s/(set|get)_chunk/pcpu_\\1_page_chunk/\n\n    * Drop inline from the above two functions and moved them upwards\n      so that they are with other simple helpers.\n\n    * Initial pages might not (actually most of the time don\u0027t) live\n      in the vmalloc area.  With the previous patch to manually\n      reverse-map both first chunks, this is no longer an issue.\n      Removed pcpu_set_chunk() call on initial pages.\n\nSigned-off-by: Christoph Lameter \u003ccl@linux.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: rusty@rustcorp.com.au\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: rmk@arm.linux.org.uk\nCc: starvik@axis.com\nCc: ralf@linux-mips.org\nCc: davem@davemloft.net\nCc: cooloney@kernel.org\nCc: kyle@mcmartin.ca\nCc: matthew@wil.cx\nCc: grundler@parisc-linux.org\nCc: takata@linux-m32r.org\nCc: benh@kernel.crashing.org\nCc: rth@twiddle.net\nCc: ink@jurassic.park.msu.ru\nCc: heiko.carstens@de.ibm.com\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nLKML-Reference: \u003c49D43D58.4050102@kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "bf1bf1f4a7299587159fc066029cf75c9b68a056",
      "old_mode": 33188,
      "old_path": "mm/percpu.c",
      "new_id": "c0b2c1a76e81c280398b27ed310b1e03500e3a23",
      "new_mode": 33188,
      "new_path": "mm/percpu.c"
    }
  ]
}