From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 20:24:20 +0200
Subject: Adding upstream version 14.2.21.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/os/fs/XFS.cc | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/os/fs/XFS.cc

(limited to 'src/os/fs/XFS.cc')

diff --git a/src/os/fs/XFS.cc b/src/os/fs/XFS.cc
new file mode 100644
index 00000000..c72ee1a0
--- /dev/null
+++ b/src/os/fs/XFS.cc
@@ -0,0 +1,55 @@
+// -*- 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 Red Hat
+ *
+ * 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 "XFS.h"
+
+#include <xfs/xfs.h>
+
+int XFS::set_alloc_hint(int fd, uint64_t val)
+{
+  struct fsxattr fsx;
+  struct stat sb;
+  int ret;
+
+  if (fstat(fd, &sb) < 0) {
+    ret = -errno;
+    return ret;
+  }
+  if (!S_ISREG(sb.st_mode)) {
+    return -EINVAL;
+  }
+
+  if (ioctl(fd, XFS_IOC_FSGETXATTR, &fsx) < 0) {
+    ret = -errno;
+    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;
+    return ret;
+  }
+
+  return 0;
+}
-- 
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