tracing: Convert to printbuf

This converts the seq_bufs in dynevent_cmd and trace_seq to printbufs.

 - read_pos in seq_buf doesn't exist in printbuf, so is added to
   trace_seq

 - seq_buf_to_user doesn't have a printbuf equivalent, so is inlined
   into trace_seq_to_user

 - seq_buf_putmem_hex currently swabs bytes on little endian, hardcoded
   to 8 byte units. This patch switches it to prt_hex_bytes(), which
   does _not_ swab.

Otherwise this is largely a direct conversion, with a few slight
refactorings and cleanups.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

0 files changed, 0 insertions, 0 deletions