* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2014, Intel Corporation.
+ * Copyright (c) 2014, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef _LUSTRE_FIEMAP_H
#define _LUSTRE_FIEMAP_H
-#if !defined(__KERNEL__)
-
+#ifndef __KERNEL__
#include <stddef.h>
-#include <libcfs/types.h>
-
-struct ll_fiemap_extent {
- __u64 fe_logical; /* logical offset in bytes for the start of
- * the extent from the beginning of the file */
- __u64 fe_physical; /* physical offset in bytes for the start
- * of the extent from the beginning of the disk */
- __u64 fe_length; /* length in bytes for this extent */
- __u64 fe_reserved64[2];
- __u32 fe_flags; /* FIEMAP_EXTENT_* flags for this extent */
- __u32 fe_device; /* device number for this extent */
- __u32 fe_reserved[2];
-};
-
-struct ll_user_fiemap {
- __u64 fm_start; /* logical offset (inclusive) at
- * which to start mapping (in) */
- __u64 fm_length; /* logical length of mapping which
- * userspace wants (in) */
- __u32 fm_flags; /* FIEMAP_FLAG_* flags for request (in/out) */
- __u32 fm_mapped_extents;/* number of extents that were mapped (out) */
- __u32 fm_extent_count; /* size of fm_extents array (in) */
- __u32 fm_reserved;
- struct ll_fiemap_extent fm_extents[0]; /* array of mapped extents (out) */
-};
-
-#define FIEMAP_MAX_OFFSET (~0ULL)
-
-#define FIEMAP_FLAG_SYNC 0x00000001 /* sync file data before map */
-#define FIEMAP_FLAG_XATTR 0x00000002 /* map extended attribute tree */
-
-#define FIEMAP_EXTENT_LAST 0x00000001 /* Last extent in file. */
-#define FIEMAP_EXTENT_UNKNOWN 0x00000002 /* Data location unknown. */
-#define FIEMAP_EXTENT_DELALLOC 0x00000004 /* Location still pending.
- * Sets EXTENT_UNKNOWN. */
-#define FIEMAP_EXTENT_ENCODED 0x00000008 /* Data can not be read
- * while fs is unmounted */
-#define FIEMAP_EXTENT_DATA_ENCRYPTED 0x00000080 /* Data is encrypted by fs.
- * Sets EXTENT_NO_DIRECT. */
-#define FIEMAP_EXTENT_NOT_ALIGNED 0x00000100 /* Extent offsets may not be
- * block aligned. */
-#define FIEMAP_EXTENT_DATA_INLINE 0x00000200 /* Data mixed with metadata.
- * Sets EXTENT_NOT_ALIGNED.*/
-#define FIEMAP_EXTENT_DATA_TAIL 0x00000400 /* Multiple files in block.
- * Sets EXTENT_NOT_ALIGNED.*/
-#define FIEMAP_EXTENT_UNWRITTEN 0x00000800 /* Space allocated, but
- * no data (i.e. zero). */
-#define FIEMAP_EXTENT_MERGED 0x00001000 /* File does not natively
- * support extents. Result
- * merged for efficiency. */
-#else
-
-#define ll_fiemap_extent fiemap_extent
-#define ll_user_fiemap fiemap
-#define fe_device fe_reserved[0]
+#include <linux/fiemap.h>
+#endif
-#endif /* HAVE_LINUX_FIEMAP_H */
+/* XXX: We use fiemap_extent::fe_reserved[0] */
+#define fe_device fe_reserved[0]
static inline size_t fiemap_count_to_size(size_t extent_count)
{
- return (sizeof(struct ll_user_fiemap) + extent_count *
- sizeof(struct ll_fiemap_extent));
+ return sizeof(struct fiemap) + extent_count *
+ sizeof(struct fiemap_extent);
}
static inline unsigned fiemap_size_to_count(size_t array_size)
{
- return ((array_size - sizeof(struct ll_user_fiemap)) /
- sizeof(struct ll_fiemap_extent));
+ return (array_size - sizeof(struct fiemap)) /
+ sizeof(struct fiemap_extent);
}
#define FIEMAP_FLAG_DEVICE_ORDER 0x40000000 /* return device ordered mapping */
#endif
/* Lustre specific flags - use a high bit, don't conflict with upstream flag */
-#define FIEMAP_EXTENT_NO_DIRECT 0x40000000 /* Data mapping undefined */
-#define FIEMAP_EXTENT_NET 0x80000000 /* Data stored remotely.
- * Sets NO_DIRECT flag */
+#define FIEMAP_EXTENT_NO_DIRECT 0x40000000 /* Data mapping undefined */
+#define FIEMAP_EXTENT_NET 0x80000000 /* Data stored remotely.
+ * Sets NO_DIRECT flag */
#endif /* _LUSTRE_FIEMAP_H */