From fac5b559a784cd50ae355bddae1ca2a850e4d39a Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Wed, 30 Jan 2013 14:50:23 -0800 Subject: btrfs-progs: Add support for BTRFS_SEND_FLAG_NO_FILE_DATA The flag and command are synced from kernel to user. Also, this patch adds a callback for the BTRFS_SEND_C_UPDATE_EXTENT in struct btrfs_send_ops. read_and_process_cmd() is updated to decode BTRFS_SEND_C_UPDATE_EXTENT and send the values through the right callback. I did not add a callback definition to cmds-receive.c as that code never uses BTRFS_SEND_FLAG_NO_FILE_DATA. Signed-off-by: Mark Fasheh --- ioctl.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'ioctl.h') diff --git a/ioctl.h b/ioctl.h index d57afb2d..8c32a2a2 100644 --- a/ioctl.h +++ b/ioctl.h @@ -364,6 +364,13 @@ struct btrfs_ioctl_received_subvol_args { __u64 reserved[16]; /* in */ }; +/* + * Caller doesn't want file data in the send stream, even if the + * search of clone sources doesn't find an extent. UPDATE_EXTENT + * commands will be sent instead of WRITE commands. + */ +#define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1 + struct btrfs_ioctl_send_args { __s64 send_fd; /* in */ __u64 clone_sources_count; /* in */ -- cgit v1.2.3