Add definitions for a version 2 of the blk_user_trace_setup ioctl. This new will enable a different struct layout of the binary data passed to user-space when using a new version of the blktrace utility requesting the new struct layout.
Signed-off-by: Johannes Thumshirn <[email protected]> --- include/uapi/linux/blktrace_api.h | 15 +++++++++++++++ include/uapi/linux/fs.h | 1 + 2 files changed, 16 insertions(+) diff --git a/include/uapi/linux/blktrace_api.h b/include/uapi/linux/blktrace_api.h index 1bfb635e309b..a3b1f35ac026 100644 --- a/include/uapi/linux/blktrace_api.h +++ b/include/uapi/linux/blktrace_api.h @@ -143,4 +143,19 @@ struct blk_user_trace_setup { __u32 pid; }; +/* + * User setup structure passed with BLKTRACESETUP2 + */ +struct blk_user_trace_setup2 { + char name[32]; /* output */ + __u64 act_mask; /* input */ + __u32 buf_size; /* input */ + __u32 buf_nr; /* input */ + __u64 start_lba; + __u64 end_lba; + __u32 pid; + __u32 flags; /* currently unused */ + __u64 reserved[7]; +}; + #endif /* _UAPIBLKTRACE_H */ diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 0bd678a4a10e..a85d0b52a3f6 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -300,6 +300,7 @@ struct file_attr { #define BLKGETDISKSEQ _IOR(0x12,128,__u64) /* 130-136 are used by zoned block device ioctls (uapi/linux/blkzoned.h) */ /* 137-141 are used by blk-crypto ioctls (uapi/linux/blk-crypto.h) */ +#define BLKTRACESETUP2 _IOWR(0x12, 142, struct blk_user_trace_setup2) #define BMAP_IOCTL 1 /* obsolete - kept for compatibility */ #define FIBMAP _IO(0x00,1) /* bmap access */ -- 2.51.0
