remove ceph code

[stor4nfv.git] / src / ceph / src / os / filestore / XfsFileStoreBackend.cc

diff --git a/src/ceph/src/os/filestore/XfsFileStoreBackend.cc b/src/ceph/src/os/filestore/XfsFileStoreBackend.cc
deleted file mode 100644 (file)
index b6d4d3e..0000000
--- a/src/ceph/src/os/filestore/XfsFileStoreBackend.cc
+++ /dev/null
@@ -1,149 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2014 Inktank, Inc
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation.  See file COPYING.
- *
- */
-
-#include "XfsFileStoreBackend.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <sys/utsname.h>
-
-#include <xfs/xfs.h>
-
-#include "common/errno.h"
-#include "common/linux_version.h"
-#include "include/assert.h"
-#include "include/compat.h"
-
-#define dout_context cct()
-#define dout_subsys ceph_subsys_filestore
-#undef dout_prefix
-#define dout_prefix *_dout << "xfsfilestorebackend(" << get_basedir_path() << ") "
-
-XfsFileStoreBackend::XfsFileStoreBackend(FileStore *fs):
-  GenericFileStoreBackend(fs), m_has_extsize(false) { }
-
-/*
- * Set extsize attr on a file to val.  Should be a free-standing
- * function, but dout_prefix expanding to a call to get_basedir_path()
- * protected member function won't let it.
- */
-int XfsFileStoreBackend::set_extsize(int fd, unsigned int val)
-{
-  struct fsxattr fsx;
-  struct stat sb;
-  int ret;
-
-  if (fstat(fd, &sb) < 0) {
-    ret = -errno;
-    dout(0) << "set_extsize: fstat: " << cpp_strerror(ret) << dendl;
-    return ret;
-  }
-  if (!S_ISREG(sb.st_mode)) {
-    dout(0) << "set_extsize: invalid target file type" << dendl;
-    return -EINVAL;
-  }
-
-  if (ioctl(fd, XFS_IOC_FSGETXATTR, &fsx) < 0) {
-    ret = -errno;
-    dout(0) << "set_extsize: FSGETXATTR: " << cpp_strerror(ret) << dendl;
-    return ret;
-  }
-
-  // already set?
-  if ((fsx.fsx_xflags & XFS_XFLAG_EXTSIZE) && fsx.fsx_extsize == val)
-    return 0;
-
-  // xfs won't change extent size if any extents are allocated
-  if (fsx.fsx_nextents != 0)
-    return 0;
-
-  fsx.fsx_xflags |= XFS_XFLAG_EXTSIZE;
-  fsx.fsx_extsize = val;
-
-  if (ioctl(fd, XFS_IOC_FSSETXATTR, &fsx) < 0) {
-    ret = -errno;
-    dout(0) << "set_extsize: FSSETXATTR: " << cpp_strerror(ret) << dendl;
-    return ret;
-  }
-
-  return 0;
-}
-
-int XfsFileStoreBackend::detect_features()
-{
-  int ret;
-
-  ret = GenericFileStoreBackend::detect_features();
-  if (ret < 0)
-    return ret;
-
-  // extsize?
-  int fd = ::openat(get_basedir_fd(), "extsize_test", O_CREAT|O_WRONLY, 0600);
-  if (fd < 0) {
-    ret = -errno;
-    dout(0) << "detect_feature: failed to create test file for extsize attr: "
-            << cpp_strerror(ret) << dendl;
-    goto out;
-  }
-  if (::unlinkat(get_basedir_fd(), "extsize_test", 0) < 0) {
-    ret = -errno;
-    dout(0) << "detect_feature: failed to unlink test file for extsize attr: "
-            << cpp_strerror(ret) << dendl;
-    goto out_close;
-  }
-
-  if (cct()->_conf->filestore_xfs_extsize) {
-    ret = set_extsize(fd, 1U << 15); // a few pages
-    if (ret) {
-      ret = 0;
-      dout(0) << "detect_feature: failed to set test file extsize, assuming extsize is NOT supported" << dendl;
-      goto out_close;
-    }
-
-    // make sure we have 3.5 or newer, which includes this fix
-    //   aff3a9edb7080f69f07fe76a8bd089b3dfa4cb5d
-    // for this set_extsize bug
-    //   http://oss.sgi.com/bugzilla/show_bug.cgi?id=874
-    int ver = get_linux_version();
-    if (ver == 0) {
-      dout(0) << __func__ << ": couldn't verify extsize not buggy, disabling extsize" << dendl;
-      m_has_extsize = false;
-    } else if (ver < KERNEL_VERSION(3, 5, 0)) {
-      dout(0) << __func__ << ": disabling extsize, your kernel < 3.5 and has buggy extsize ioctl" << dendl;
-      m_has_extsize = false;
-    } else {
-      dout(0) << __func__ << ": extsize is supported and your kernel >= 3.5" << dendl;
-      m_has_extsize = true;
-    }
-  } else {
-    dout(0) << "detect_feature: extsize is disabled by conf" << dendl;
-  }
-
-out_close:
-  TEMP_FAILURE_RETRY(::close(fd));
-out:
-  return ret;
-}
-
-int XfsFileStoreBackend::set_alloc_hint(int fd, uint64_t hint)
-{
-  if (!m_has_extsize)
-    return -EOPNOTSUPP;
-
-  assert(hint < UINT_MAX);
-  return set_extsize(fd, hint);
-}