)]}'
{
  "log": [
    {
      "commit": "3e63cbb1efca7dd3137de1bb475e2e068e38ef23",
      "tree": "5a7964068266e778e94c1348192d3c85eba4ac48",
      "parents": [
        "01c031945f2755c7afaaf456088543312f2b72ea"
      ],
      "author": {
        "name": "Ankit Jain",
        "email": "me@ankitjain.org",
        "time": "Fri Jun 19 14:28:07 2009 -0400"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Wed Jun 24 08:15:27 2009 -0400"
      },
      "message": "fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls\n\nThis patch adds ioctls to vfs for compatibility with legacy XFS\npre-allocation ioctls (XFS_IOC_*RESVP*). The implementation\neffectively invokes sys_fallocate for the new ioctls.\nAlso handles the compat_ioctl case.\nNote: These legacy ioctls are also implemented by OCFS2.\n\n[AV: folded fixes from hch]\n\nSigned-off-by: Ankit Jain \u003cme@ankitjain.org\u003e\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n"
    },
    {
      "commit": "97ac73506c0ba93f30239bb57b4cfc5d73e68a62",
      "tree": "4d02848d6c792a70b413deadcaffd7bf8c8d61de",
      "parents": [
        "cb32da0416b823b7f4b65e7e85d6cba16ca4d1e1"
      ],
      "author": {
        "name": "Amit Arora",
        "email": "aarora@in.ibm.com",
        "time": "Tue Jul 17 21:42:44 2007 -0400"
      },
      "committer": {
        "name": "Theodore Ts\u0027o",
        "email": "tytso@mit.edu",
        "time": "Tue Jul 17 21:42:44 2007 -0400"
      },
      "message": "sys_fallocate() implementation on i386, x86_64 and powerpc\n\nfallocate() is a new system call being proposed here which will allow\napplications to preallocate space to any file(s) in a file system.\nEach file system implementation that wants to use this feature will need\nto support an inode operation called -\u003efallocate().\nApplications can use this feature to avoid fragmentation to certain\nlevel and thus get faster access speed. With preallocation, applications\nalso get a guarantee of space for particular file(s) - even if later the\nthe system becomes full.\n\nCurrently, glibc provides an interface called posix_fallocate() which\ncan be used for similar cause. Though this has the advantage of working\non all file systems, but it is quite slow (since it writes zeroes to\neach block that has to be preallocated). Without a doubt, file systems\ncan do this more efficiently within the kernel, by implementing\nthe proposed fallocate() system call. It is expected that\nposix_fallocate() will be modified to call this new system call first\nand incase the kernel/filesystem does not implement it, it should fall\nback to the current implementation of writing zeroes to the new blocks.\nToDos:\n1. Implementation on other architectures (other than i386, x86_64,\n   and ppc). Patches for s390(x) and ia64 are already available from\n   previous posts, but it was decided that they should be added later\n   once fallocate is in the mainline. Hence not including those patches\n   in this take.\n2. Changes to glibc,\n   a) to support fallocate() system call\n   b) to make posix_fallocate() and posix_fallocate64() call fallocate()\n\nSigned-off-by: Amit Arora \u003caarora@in.ibm.com\u003e\n"
    }
  ]
}