Merge branch 'linus' into sched/core

[karo-tx-linux.git] / fs / btrfs / ioctl.h

diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
index bc49914475ebbebc5271f3d26d486d730610178d..424694aa517f5b03fd5ee16e4052d4c6c7fd6777 100644 (file)
--- a/fs/btrfs/ioctl.h
+++ b/fs/btrfs/ioctl.h
@@ -30,12 +30,114 @@ struct btrfs_ioctl_vol_args {
        char name[BTRFS_PATH_NAME_MAX + 1];
 };
 
+#define BTRFS_INO_LOOKUP_PATH_MAX 4080
+struct btrfs_ioctl_ino_lookup_args {
+       __u64 treeid;
+       __u64 objectid;
+       char name[BTRFS_INO_LOOKUP_PATH_MAX];
+};
+
+struct btrfs_ioctl_search_key {
+       /* which root are we searching.  0 is the tree of tree roots */
+       __u64 tree_id;
+
+       /* keys returned will be >= min and <= max */
+       __u64 min_objectid;
+       __u64 max_objectid;
+
+       /* keys returned will be >= min and <= max */
+       __u64 min_offset;
+       __u64 max_offset;
+
+       /* max and min transids to search for */
+       __u64 min_transid;
+       __u64 max_transid;
+
+       /* keys returned will be >= min and <= max */
+       __u32 min_type;
+       __u32 max_type;
+
+       /*
+        * how many items did userland ask for, and how many are we
+        * returning
+        */
+       __u32 nr_items;
+
+       /* align to 64 bits */
+       __u32 unused;
+
+       /* some extra for later */
+       __u64 unused1;
+       __u64 unused2;
+       __u64 unused3;
+       __u64 unused4;
+};
+
+struct btrfs_ioctl_search_header {
+       __u64 transid;
+       __u64 objectid;
+       __u64 offset;
+       __u32 type;
+       __u32 len;
+};
+
+#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
+/*
+ * the buf is an array of search headers where
+ * each header is followed by the actual item
+ * the type field is expanded to 32 bits for alignment
+ */
+struct btrfs_ioctl_search_args {
+       struct btrfs_ioctl_search_key key;
+       char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
+};
+
 struct btrfs_ioctl_clone_range_args {
   __s64 src_fd;
   __u64 src_offset, src_length;
   __u64 dest_offset;
 };
 
+/* flags for the defrag range ioctl */
+#define BTRFS_DEFRAG_RANGE_COMPRESS 1
+#define BTRFS_DEFRAG_RANGE_START_IO 2
+
+struct btrfs_ioctl_defrag_range_args {
+       /* start of the defrag operation */
+       __u64 start;
+
+       /* number of bytes to defrag, use (u64)-1 to say all */
+       __u64 len;
+
+       /*
+        * flags for the operation, which can include turning
+        * on compression for this one defrag
+        */
+       __u64 flags;
+
+       /*
+        * any extent bigger than this will be considered
+        * already defragged.  Use 0 to take the kernel default
+        * Use 1 to say every single extent must be rewritten
+        */
+       __u32 extent_thresh;
+
+       /* spare for later */
+       __u32 unused[5];
+};
+
+struct btrfs_ioctl_space_info {
+       __u64 flags;
+       __u64 total_bytes;
+       __u64 used_bytes;
+};
+
+struct btrfs_ioctl_space_args {
+       __u64 space_slots;
+       __u64 total_spaces;
+       struct btrfs_ioctl_space_info spaces[0];
+};
+
 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
                                   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
@@ -67,4 +169,13 @@ struct btrfs_ioctl_clone_range_args {
                                   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
                                struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
+                               struct btrfs_ioctl_defrag_range_args)
+#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
+                                  struct btrfs_ioctl_search_args)
+#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
+                                  struct btrfs_ioctl_ino_lookup_args)
+#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64)
+#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
+                                   struct btrfs_ioctl_space_args)
 #endif