diff options
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/fs.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index a46c33692aa2..a13c7b32a1bd 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -178,13 +178,22 @@ struct file_dedupe_range_info { __u32 reserved; /* must be zero */ }; +/* flags for struct file_dedupe_range */ +/* + * Without this flag, bytes_deduped is the requested length on success, + * even if the filesystem deduplicated fewer bytes (e.g. after shortening + * the request to a block boundary). With this flag, bytes_deduped is + * the number of bytes actually deduplicated. + */ +#define FILE_DEDUPE_RANGE_REPORT_PROGRESS (1U << 0) + /* 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 */ + __u32 flags; /* in - FILE_DEDUPE_RANGE_* flags */ struct file_dedupe_range_info info[]; }; |