Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...

[linux-drm-fsl-dcu.git] / include / uapi / linux / fs.h

diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index c5083d2e2c0296949a383dde6ebb74ab89dcc30c..41e0433b4a8398b3dc3da6d2d6aacb8e46287150 100644 (file)
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -42,12 +42,48 @@
 #define RENAME_EXCHANGE                (1 << 1)        /* Exchange source and dest */
 #define RENAME_WHITEOUT                (1 << 2)        /* Whiteout source */
 
+struct file_clone_range {
+       __s64 src_fd;
+       __u64 src_offset;
+       __u64 src_length;
+       __u64 dest_offset;
+};
+
 struct fstrim_range {
        __u64 start;
        __u64 len;
        __u64 minlen;
 };
 
+/* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */
+#define FILE_DEDUPE_RANGE_SAME         0
+#define FILE_DEDUPE_RANGE_DIFFERS      1
+
+/* from struct btrfs_ioctl_file_extent_same_info */
+struct file_dedupe_range_info {
+       __s64 dest_fd;          /* in - destination file */
+       __u64 dest_offset;      /* in - start of extent in destination */
+       __u64 bytes_deduped;    /* out - total # of bytes we were able
+                                * to dedupe from this file. */
+       /* status of this dedupe operation:
+        * < 0 for error
+        * == FILE_DEDUPE_RANGE_SAME if dedupe succeeds
+        * == FILE_DEDUPE_RANGE_DIFFERS if data differs
+        */
+       __s32 status;           /* out - see above description */
+       __u32 reserved;         /* must be zero */
+};
+
+/* from struct btrfs_ioctl_file_extent_same_args */
+struct file_dedupe_range {
+       __u64 src_offset;       /* in - start of extent in source */
+       __u64 src_length;       /* in - length of extent */
+       __u16 dest_count;       /* in - total elements in info array */
+       __u16 reserved1;        /* must be zero */
+       __u32 reserved2;        /* must be zero */
+       struct file_dedupe_range_info info[0];
+};
+
 /* And dynamically-tunable limits and defaults: */
 struct files_stat_struct {
        unsigned long nr_files;         /* read only */
@@ -113,6 +149,37 @@ struct inodes_stat_t {
 #define MS_MGC_VAL 0xC0ED0000
 #define MS_MGC_MSK 0xffff0000
 
+/*
+ * Structure for FS_IOC_FSGETXATTR[A] and FS_IOC_FSSETXATTR.
+ */
+struct fsxattr {
+       __u32           fsx_xflags;     /* xflags field value (get/set) */
+       __u32           fsx_extsize;    /* extsize field value (get/set)*/
+       __u32           fsx_nextents;   /* nextents field value (get)   */
+       __u32           fsx_projid;     /* project identifier (get/set) */
+       unsigned char   fsx_pad[12];
+};
+
+/*
+ * Flags for the fsx_xflags field
+ */
+#define FS_XFLAG_REALTIME      0x00000001      /* data in realtime volume */
+#define FS_XFLAG_PREALLOC      0x00000002      /* preallocated file extents */
+#define FS_XFLAG_IMMUTABLE     0x00000008      /* file cannot be modified */
+#define FS_XFLAG_APPEND                0x00000010      /* all writes append */
+#define FS_XFLAG_SYNC          0x00000020      /* all writes synchronous */
+#define FS_XFLAG_NOATIME       0x00000040      /* do not update access time */
+#define FS_XFLAG_NODUMP                0x00000080      /* do not include in backups */
+#define FS_XFLAG_RTINHERIT     0x00000100      /* create with rt bit set */
+#define FS_XFLAG_PROJINHERIT   0x00000200      /* create with parents projid */
+#define FS_XFLAG_NOSYMLINKS    0x00000400      /* disallow symlink creation */
+#define FS_XFLAG_EXTSIZE       0x00000800      /* extent size allocator hint */
+#define FS_XFLAG_EXTSZINHERIT  0x00001000      /* inherit inode extent size */
+#define FS_XFLAG_NODEFRAG      0x00002000      /* do not defragment */
+#define FS_XFLAG_FILESTREAM    0x00004000      /* use filestream allocator */
+#define FS_XFLAG_DAX           0x00008000      /* use DAX for IO */
+#define FS_XFLAG_HASATTR       0x80000000      /* no DIFLAG for this   */
+
 /* the read-only stuff doesn't really belong here, but any other place is
    probably as bad and I don't want to create yet another include file. */
 
@@ -155,6 +222,8 @@ struct inodes_stat_t {
 #define BLKSECDISCARD _IO(0x12,125)
 #define BLKROTATIONAL _IO(0x12,126)
 #define BLKZEROOUT _IO(0x12,127)
+#define BLKDAXSET _IO(0x12,128)
+#define BLKDAXGET _IO(0x12,129)
 
 #define BMAP_IOCTL 1           /* obsolete - kept for compatibility */
 #define FIBMAP    _IO(0x00,1)  /* bmap access */
@@ -162,6 +231,9 @@ struct inodes_stat_t {
 #define FIFREEZE       _IOWR('X', 119, int)    /* Freeze */
 #define FITHAW         _IOWR('X', 120, int)    /* Thaw */
 #define FITRIM         _IOWR('X', 121, struct fstrim_range)    /* Trim */
+#define FICLONE                _IOW(0x94, 9, int)
+#define FICLONERANGE   _IOW(0x94, 13, struct file_clone_range)
+#define FIDEDUPERANGE  _IOWR(0x94, 54, struct file_dedupe_range)
 
 #define        FS_IOC_GETFLAGS                 _IOR('f', 1, long)
 #define        FS_IOC_SETFLAGS                 _IOW('f', 2, long)
@@ -172,6 +244,8 @@ struct inodes_stat_t {
 #define FS_IOC32_SETFLAGS              _IOW('f', 2, int)
 #define FS_IOC32_GETVERSION            _IOR('v', 1, int)
 #define FS_IOC32_SETVERSION            _IOW('v', 2, int)
+#define FS_IOC_FSGETXATTR              _IOR ('X', 31, struct fsxattr)
+#define FS_IOC_FSSETXATTR              _IOW ('X', 32, struct fsxattr)
 
 /*
  * Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS)