)]}'
{
  "commit": "67dd5a25f4efbfccf973159429cb20acdc5b0e0e",
  "tree": "9965b12c0d614b7cf82dd8483cfc1671f925af4e",
  "parents": [
    "9f34073b4e54ad58541e0e2b4a87f4f6c1460e21"
  ],
  "author": {
    "name": "Jeremy Fitzhardinge",
    "email": "jeremy@goop.org",
    "time": "Fri Oct 05 17:19:35 2007 -0700"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@woody.linux-foundation.org",
    "time": "Sat Oct 06 09:31:30 2007 -0700"
  },
  "message": "xen: disable split pte locks for now\n\nWhen pinning and unpinning pagetables, we must protect them against\nbeing used by other CPUs, lest they see the pagetable in an\nintermediate read-only-but-not-pinned state.\n\nWhen using split pte locks, doing this properly would require taking\nall the pte locks for the pagetable while pinning, but this may overflow\nthe PREEMPT_BITS part of the preempt counter if the process has mapped\nmore than about 512M of memory.\n\nHowever, failing to take the pte locks causes write-protect faults when\nthe pageout code is trying to clear the Access bit on a pte which is part\nof a freshy created and still being pinned process after fork.\n\nThis is a short-term fix until the problem is solved properly.\n\nSigned-off-by: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nCc: Keir Fraser \u003ckeir@xensource.com\u003e\nCc: Jan Beulich \u003cjbeulich@novell.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "e24d348083c34da69472bc22a9b7025d562a3ffe",
      "old_mode": 33188,
      "old_path": "mm/Kconfig",
      "new_id": "a7609cbcb00d8ce3fb81f366d7c835af970452e7",
      "new_mode": 33188,
      "new_path": "mm/Kconfig"
    }
  ]
}