lkml.org 
[lkml]   [2021]   [Apr]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v3 0/3] rseq: minor optimizations
Date
From: Eric Dumazet <edumazet@google.com>

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

v3: Third patch going back to v1 (only deal with 64bit arches)
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 | 29 +++++++++++++++++++++--------
1 file changed, 21 insertions(+), 8 deletions(-)

--
2.31.1.295.g9ea45b61b8-goog

\
 
 \ /
  Last update: 2021-04-13 22:35    [W:0.063 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site