)]}'
{
  "commit": "5ac6da669e2476dbdac89b357b05b5a79bc5b657",
  "tree": "45b16221dd4f246595638e5fb6f629ddda96ff33",
  "parents": [
    "339ba9b15df58199b9783a23af234e947ec9e6ba"
  ],
  "author": {
    "name": "Christoph Lameter",
    "email": "clameter@sgi.com",
    "time": "Sat Feb 10 01:43:14 2007 -0800"
  },
  "committer": {
    "name": "Linus Torvalds",
    "email": "torvalds@woody.linux-foundation.org",
    "time": "Sun Feb 11 10:51:19 2007 -0800"
  },
  "message": "[PATCH] Set CONFIG_ZONE_DMA for arches with GENERIC_ISA_DMA\n\nAs Andi pointed out: CONFIG_GENERIC_ISA_DMA only disables the ISA DMA\nchannel management.  Other functionality may still expect GFP_DMA to\nprovide memory below 16M.  So we need to make sure that CONFIG_ZONE_DMA is\nset independent of CONFIG_GENERIC_ISA_DMA.  Undo the modifications to\nmm/Kconfig where we made ZONE_DMA dependent on GENERIC_ISA_DMA and set\ntheses explicitly in each arches Kconfig.\n\nReviews must occur for each arch in order to determine if ZONE_DMA can be\nswitched off.  It can only be switched off if we know that all devices\nsupported by a platform are capable of performing DMA transfers to all of\nmemory (Some arches already support this: uml, avr32, sh sh64, parisc and\nIA64/Altix).\n\nIn order to switch ZONE_DMA off conditionally, one would have to establish\na scheme by which one can assure that no drivers are enabled that are only\ncapable of doing I/O to a part of memory, or one needs to provide an\nalternate means of performing an allocation from a specific range of memory\n(like provided by alloc_pages_range()) and insure that all drivers use that\ncall.  In that case the arches alloc_dma_coherent() may need to be modified\nto call alloc_pages_range() instead of relying on GFP_DMA.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "84caf50725b53e829df2a39baa059084d63663e4",
      "old_mode": 33188,
      "old_path": "arch/alpha/Kconfig",
      "new_id": "770f717bd250c2c0965b6477e2b6b205b8f37dbe",
      "new_mode": 33188,
      "new_path": "arch/alpha/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "1523046e092bd6b24488354617293037ca47e0a6",
      "old_mode": 33188,
      "old_path": "arch/arm/Kconfig",
      "new_id": "fbf4b2a62b60ee9391b8fc8907b69c85d2d602ef",
      "new_mode": 33188,
      "new_path": "arch/arm/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "74eba8b5a8ca41c5576b30c691b56344f0a416ce",
      "old_mode": 33188,
      "old_path": "arch/arm26/Kconfig",
      "new_id": "989113dce415fadb3ac3e4e6dff03ea40a2ebd7c",
      "new_mode": 33188,
      "new_path": "arch/arm26/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "0dfee812811a9c75427551ef8177b45f2ca7a998",
      "old_mode": 33188,
      "old_path": "arch/i386/Kconfig",
      "new_id": "63d5e841caf5a1ce0ceb7e986c572b6b70f7f3e9",
      "new_mode": 33188,
      "new_path": "arch/i386/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "f383dab973f5ea62d86f914a5774357be3ea7a4d",
      "old_mode": 33188,
      "old_path": "arch/m32r/Kconfig",
      "new_id": "565d0138078e6f19a2475cea82aba61027ca75c9",
      "new_mode": 33188,
      "new_path": "arch/m32r/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "70a577c89c7c84d279d9ce9f9c08f1c0bbaa08db",
      "old_mode": 33188,
      "old_path": "arch/m68k/Kconfig",
      "new_id": "0bffbe6e7e1144b23f0a5c0a5c549a3bb8972b19",
      "new_mode": 33188,
      "new_path": "arch/m68k/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "9d839a9c4b1a10f62b9f938e7ed013509a04178d",
      "old_mode": 33188,
      "old_path": "arch/mips/Kconfig",
      "new_id": "1bc6d249be4494d61a42a3e431d854664eac91f5",
      "new_mode": 33188,
      "new_path": "arch/mips/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "f08e80a0bf0addaf3a33d95f30238a6064f4a53e",
      "old_mode": 33188,
      "old_path": "arch/powerpc/Kconfig",
      "new_id": "0088c5ebca78190328a382ceebaa522ded7489b0",
      "new_mode": 33188,
      "new_path": "arch/powerpc/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "c22e60619d9bb6c257f0b7a6483c355cf45112ea",
      "old_mode": 33188,
      "old_path": "arch/ppc/Kconfig",
      "new_id": "0df9c33629fd992159cf95406157886dff090994",
      "new_mode": 33188,
      "new_path": "arch/ppc/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "d0dec1ea2eed93345091981a64c6028f9ae474ff",
      "old_mode": 33188,
      "old_path": "arch/sparc/Kconfig",
      "new_id": "bd992c0048f0aa1d8801b6dde2b3380982268ef9",
      "new_mode": 33188,
      "new_path": "arch/sparc/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "d41f66ac7fff71dd8768271775aad6b183de987f",
      "old_mode": 33188,
      "old_path": "arch/sparc64/Kconfig",
      "new_id": "fb84647dbf3dedd132e4e0082a232ab95e9da0e4",
      "new_mode": 33188,
      "new_path": "arch/sparc64/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "d4275537b25b6e8bc814f19215278da2633420f3",
      "old_mode": 33188,
      "old_path": "arch/x86_64/Kconfig",
      "new_id": "02dd39457bcf20cfb487dc1d34833427d714cce3",
      "new_mode": 33188,
      "new_path": "arch/x86_64/Kconfig"
    },
    {
      "type": "modify",
      "old_id": "79360cf519bfa86be803a2b890aab9e0a0b3ea40",
      "old_mode": 33188,
      "old_path": "mm/Kconfig",
      "new_id": "7942b333e46cd46c11ac0f4a849c7b98efeee58e",
      "new_mode": 33188,
      "new_path": "mm/Kconfig"
    }
  ]
}