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authorDavid Howells <dhowells@redhat.com>2012-10-13 05:46:48 -0400
committerDavid Howells <dhowells@redhat.com>2012-10-13 05:46:48 -0400
commit607ca46e97a1b6594b29647d98a32d545c24bdff (patch)
tree30f4c0784bfddb57332cdc0678bd06d1e77fa185 /include/uapi/linux/fiemap.h
parent08cce05c5a91f5017f4edc9866cf026908c73f9f (diff)
UAPI: (Scripted) Disintegrate include/linux
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'include/uapi/linux/fiemap.h')
-rw-r--r--include/uapi/linux/fiemap.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/include/uapi/linux/fiemap.h b/include/uapi/linux/fiemap.h
new file mode 100644
index 000000000000..d830747f5c0b
--- /dev/null
+++ b/include/uapi/linux/fiemap.h
@@ -0,0 +1,68 @@
1/*
2 * FS_IOC_FIEMAP ioctl infrastructure.
3 *
4 * Some portions copyright (C) 2007 Cluster File Systems, Inc
5 *
6 * Authors: Mark Fasheh <mfasheh@suse.com>
7 * Kalpak Shah <kalpak.shah@sun.com>
8 * Andreas Dilger <adilger@sun.com>
9 */
10
11#ifndef _LINUX_FIEMAP_H
12#define _LINUX_FIEMAP_H
13
14#include <linux/types.h>
15
16struct fiemap_extent {
17 __u64 fe_logical; /* logical offset in bytes for the start of
18 * the extent from the beginning of the file */
19 __u64 fe_physical; /* physical offset in bytes for the start
20 * of the extent from the beginning of the disk */
21 __u64 fe_length; /* length in bytes for this extent */
22 __u64 fe_reserved64[2];
23 __u32 fe_flags; /* FIEMAP_EXTENT_* flags for this extent */
24 __u32 fe_reserved[3];
25};
26
27struct fiemap {
28 __u64 fm_start; /* logical offset (inclusive) at
29 * which to start mapping (in) */
30 __u64 fm_length; /* logical length of mapping which
31 * userspace wants (in) */
32 __u32 fm_flags; /* FIEMAP_FLAG_* flags for request (in/out) */
33 __u32 fm_mapped_extents;/* number of extents that were mapped (out) */
34 __u32 fm_extent_count; /* size of fm_extents array (in) */
35 __u32 fm_reserved;
36 struct fiemap_extent fm_extents[0]; /* array of mapped extents (out) */
37};
38
39#define FIEMAP_MAX_OFFSET (~0ULL)
40
41#define FIEMAP_FLAG_SYNC 0x00000001 /* sync file data before map */
42#define FIEMAP_FLAG_XATTR 0x00000002 /* map extended attribute tree */
43
44#define FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_XATTR)
45
46#define FIEMAP_EXTENT_LAST 0x00000001 /* Last extent in file. */
47#define FIEMAP_EXTENT_UNKNOWN 0x00000002 /* Data location unknown. */
48#define FIEMAP_EXTENT_DELALLOC 0x00000004 /* Location still pending.
49 * Sets EXTENT_UNKNOWN. */
50#define FIEMAP_EXTENT_ENCODED 0x00000008 /* Data can not be read
51 * while fs is unmounted */
52#define FIEMAP_EXTENT_DATA_ENCRYPTED 0x00000080 /* Data is encrypted by fs.
53 * Sets EXTENT_NO_BYPASS. */
54#define FIEMAP_EXTENT_NOT_ALIGNED 0x00000100 /* Extent offsets may not be
55 * block aligned. */
56#define FIEMAP_EXTENT_DATA_INLINE 0x00000200 /* Data mixed with metadata.
57 * Sets EXTENT_NOT_ALIGNED.*/
58#define FIEMAP_EXTENT_DATA_TAIL 0x00000400 /* Multiple files in block.
59 * Sets EXTENT_NOT_ALIGNED.*/
60#define FIEMAP_EXTENT_UNWRITTEN 0x00000800 /* Space allocated, but
61 * no data (i.e. zero). */
62#define FIEMAP_EXTENT_MERGED 0x00001000 /* File does not natively
63 * support extents. Result
64 * merged for efficiency. */
65#define FIEMAP_EXTENT_SHARED 0x00002000 /* Space shared with other
66 * files. */
67
68#endif /* _LINUX_FIEMAP_H */