diff options
Diffstat (limited to 'include/uapi/linux/btrfs.h')
| -rw-r--r-- | include/uapi/linux/btrfs.h | 53 |
1 files changed, 50 insertions, 3 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index cdf6ad872149..e8fd92789423 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -615,7 +615,12 @@ struct btrfs_ioctl_clone_range_args { */ #define BTRFS_DEFRAG_RANGE_COMPRESS 1 #define BTRFS_DEFRAG_RANGE_START_IO 2 +#define BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL 4 +/* Request no compression on the range (uncompress if necessary). */ +#define BTRFS_DEFRAG_RANGE_NOCOMPRESS 8 #define BTRFS_DEFRAG_RANGE_FLAGS_SUPP (BTRFS_DEFRAG_RANGE_COMPRESS | \ + BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL | \ + BTRFS_DEFRAG_RANGE_NOCOMPRESS | \ BTRFS_DEFRAG_RANGE_START_IO) struct btrfs_ioctl_defrag_range_args { @@ -640,10 +645,18 @@ struct btrfs_ioctl_defrag_range_args { /* * which compression method to use if turning on compression - * for this defrag operation. If unspecified, zlib will - * be used + * for this defrag operation. If unspecified, zlib will be + * used. If compression level is also being specified, set the + * BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL flag and fill the compress + * member structure instead of the compress_type field. */ - __u32 compress_type; + union { + __u32 compress_type; + struct { + __u8 type; + __s8 level; + } compress; + }; /* spare for later */ __u32 unused[4]; @@ -1049,6 +1062,29 @@ struct btrfs_ioctl_encoded_io_args { #define BTRFS_ENCODED_IO_ENCRYPTION_NONE 0 #define BTRFS_ENCODED_IO_ENCRYPTION_TYPES 1 +/* + * Wait for subvolume cleaning process. This queries the kernel queue and it + * can change between the calls. + * + * - FOR_ONE - specify the subvolid + * - FOR_QUEUED - wait for all currently queued + * - COUNT - count number of queued + * - PEEK_FIRST - read which is the first in the queue (to be cleaned or being + * cleaned already), or 0 if the queue is empty + * - PEEK_LAST - read the last subvolid in the queue, or 0 if the queue is empty + */ +struct btrfs_ioctl_subvol_wait { + __u64 subvolid; + __u32 mode; + __u32 count; +}; + +#define BTRFS_SUBVOL_SYNC_WAIT_FOR_ONE (0) +#define BTRFS_SUBVOL_SYNC_WAIT_FOR_QUEUED (1) +#define BTRFS_SUBVOL_SYNC_COUNT (2) +#define BTRFS_SUBVOL_SYNC_PEEK_FIRST (3) +#define BTRFS_SUBVOL_SYNC_PEEK_LAST (4) + /* Error codes as returned by the kernel */ enum btrfs_err_code { BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET = 1, @@ -1063,6 +1099,12 @@ enum btrfs_err_code { BTRFS_ERROR_DEV_RAID1C4_MIN_NOT_MET, }; +/* Flags for IOC_SHUTDOWN, must match XFS_FSOP_GOING_FLAGS_* flags. */ +#define BTRFS_SHUTDOWN_FLAGS_DEFAULT 0x0 +#define BTRFS_SHUTDOWN_FLAGS_LOGFLUSH 0x1 +#define BTRFS_SHUTDOWN_FLAGS_NOLOGFLUSH 0x2 +#define BTRFS_SHUTDOWN_FLAGS_LAST 0x3 + #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ @@ -1181,6 +1223,11 @@ enum btrfs_err_code { struct btrfs_ioctl_encoded_io_args) #define BTRFS_IOC_ENCODED_WRITE _IOW(BTRFS_IOCTL_MAGIC, 64, \ struct btrfs_ioctl_encoded_io_args) +#define BTRFS_IOC_SUBVOL_SYNC_WAIT _IOW(BTRFS_IOCTL_MAGIC, 65, \ + struct btrfs_ioctl_subvol_wait) + +/* Shutdown ioctl should follow XFS's interfaces, thus not using btrfs magic. */ +#define BTRFS_IOC_SHUTDOWN _IOR('X', 125, __u32) #ifdef __cplusplus } |