[PATCH v2 0/3] rseq: minor optimizations

[Eric Dumazet]

From: Eric Dumazet <edumazet@xxxxxxxxxx>

rseq is a heavy user of copy to/from user data in fast paths.
This series tries to reduce the cost.

v2: Addressed Peter and Mathieu feedbacks, thanks !

Eric Dumazet (3):
  rseq: optimize rseq_update_cpu_id()
  rseq: remove redundant access_ok()
  rseq: optimise rseq_get_rseq_cs() and clear_rseq_cs()

 kernel/rseq.c | 61 +++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 45 insertions(+), 16 deletions(-)

-- 
2.31.1.295.g9ea45b61b8-goog