Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-10-23 21:50:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

tif-notify-signal-2023-01-06

Browse Source 
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmO4SfAQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgphRVD/0VTK0j4Cwbv8cptyDwJQ5LXxo9mLkG58j6
 +7H1Bx0MUOpajLHLnWtlUNOXNZ0ch9RwujeICAts0gCv7JKe/ky3QXA270+X64t3
 memAEpdMNhpMfGSlYm9OfTxPI7kvFvQZb2wtGfDttU41WEqILbo9GVSdONTMJ60i
 e72LZkdi1P1PMqfY4unP1Cm5jJY3tERjwfXGj8EvYl58m7x8+ybBrPPjDwuCgt1Y
 k92ub+sE88/i40lY77/hbQvjtvtxkrEIlmoMJv6kJKatDCF9yVh3U1lN3xD+VzF+
 XVK+zpFdRqgwYKdKMrR1JTSq91JdrlUWWQ31MJKXiHz9uRIjwaEVc9EpNqb3xiD/
 /cRF5jGt6PfHxOglpyUkO+I89+eijvGbWUdqpx9ArPBITTIiLqAZ6lS9dKFnGvFK
 ZoNeAWpa8WcGvZV0kOA0lKQsorvYvny0SKy23SEidcSRZi3tn6eywIZCcBdD/Cun
 iarweTsvnU+VVhkn2QXGPMvc8orXE04As1vrTlYXZeSml2OM1zRh5CU3cRjir863
 smj79Fc/HE8BF2twKx5/HTacoH5bH/MxiPVy+Cofq3Sm7tAMaQfbDg+IufeMYZlt
 KjzZM4IqqoS6Mb7zdUhobmbH5TjZBlUTbW/BTuBWBV51e0P7Yj1v/cVsFm856I05
 67JfzBs+HQ==
 =mDXf
 -----END PGP SIGNATURE-----

Merge tag 'tif-notify-signal-2023-01-06' of git://git.kernel.dk/linux

Pull arm TIF_NOTIFY_SIGNAL fixup from Jens Axboe:
 "Hui Tang reported a performance regressions with _TIF_WORK_MASK in
  newer kernels, which he tracked to a change that went into 5.11. After
  this change, we'll call do_work_pending() more often than we need to,
  because we're now testing bits 0..15 rather than just 0..7.

  Shuffle the bits around to avoid this"

* tag 'tif-notify-signal-2023-01-06' of git://git.kernel.dk/linux:
  ARM: renumber bits related to _TIF_WORK_MASK
This commit is contained in:
Linus Torvalds 2023-01-06 12:54:51 -08:00
commit 93387d499e
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/arm/include/asm/thread_info.h
View File

@ -128,15 +128,16 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
#define TIF_NEED_RESCHED 1 /* rescheduling necessary */
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_UPROBE 3 /* breakpointed or singlestepping */
#define TIF_SYSCALL_TRACE 4 /* syscall trace active */
#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */
#define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */
#define TIF_SECCOMP 7 /* seccomp syscall filtering active */
#define TIF_NOTIFY_SIGNAL 8 /* signal notifications exist */
#define TIF_NOTIFY_SIGNAL 4 /* signal notifications exist */
#define TIF_USING_IWMMXT 17
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 20
#define TIF_RESTORE_SIGMASK 19
#define TIF_SYSCALL_TRACE 20 /* syscall trace active */
#define TIF_SYSCALL_AUDIT 21 /* syscall auditing active */
#define TIF_SYSCALL_TRACEPOINT 22 /* syscall tracepoint instrumentation */
#define TIF_SECCOMP 23 /* seccomp syscall filtering active */
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)