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path: root/include/uapi/linux/btrfs.h
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Diffstat (limited to 'include/uapi/linux/btrfs.h')
-rw-r--r--include/uapi/linux/btrfs.h20
1 files changed, 14 insertions, 6 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index d956b2993970..7ada84e4a3ed 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -93,7 +93,7 @@ struct btrfs_qgroup_inherit {
__u64 num_ref_copies;
__u64 num_excl_copies;
struct btrfs_qgroup_limit lim;
- __u64 qgroups[0];
+ __u64 qgroups[];
};
struct btrfs_ioctl_qgroup_limit_args {
@@ -561,7 +561,7 @@ struct btrfs_ioctl_search_args_v2 {
__u64 buf_size; /* in - size of buffer
* out - on EOVERFLOW: needed size
* to store item */
- __u64 buf[0]; /* out - found items */
+ __u64 buf[]; /* out - found items */
};
struct btrfs_ioctl_clone_range_args {
@@ -632,7 +632,7 @@ struct btrfs_ioctl_same_args {
__u16 dest_count; /* in - total elements in info array */
__u16 reserved1;
__u32 reserved2;
- struct btrfs_ioctl_same_extent_info info[0];
+ struct btrfs_ioctl_same_extent_info info[];
};
struct btrfs_ioctl_space_info {
@@ -644,7 +644,7 @@ struct btrfs_ioctl_space_info {
struct btrfs_ioctl_space_args {
__u64 space_slots;
__u64 total_spaces;
- struct btrfs_ioctl_space_info spaces[0];
+ struct btrfs_ioctl_space_info spaces[];
};
struct btrfs_data_container {
@@ -652,7 +652,7 @@ struct btrfs_data_container {
__u32 bytes_missing; /* out -- additional bytes needed for result */
__u32 elem_cnt; /* out */
__u32 elem_missed; /* out */
- __u64 val[0]; /* out */
+ __u64 val[]; /* out */
};
struct btrfs_ioctl_ino_path_args {
@@ -777,11 +777,19 @@ struct btrfs_ioctl_received_subvol_args {
*/
#define BTRFS_SEND_FLAG_VERSION 0x8
+/*
+ * Send compressed data using the ENCODED_WRITE command instead of decompressing
+ * the data and sending it with the WRITE command. This requires protocol
+ * version >= 2.
+ */
+#define BTRFS_SEND_FLAG_COMPRESSED 0x10
+
#define BTRFS_SEND_FLAG_MASK \
(BTRFS_SEND_FLAG_NO_FILE_DATA | \
BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
BTRFS_SEND_FLAG_OMIT_END_CMD | \
- BTRFS_SEND_FLAG_VERSION)
+ BTRFS_SEND_FLAG_VERSION | \
+ BTRFS_SEND_FLAG_COMPRESSED)
struct btrfs_ioctl_send_args {
__s64 send_fd; /* in */