https://github.com/torvalds/linux
Revision 6ebb6814a1ef9573d8488232b50dc53b394c025a authored by Linus Torvalds on 23 May 2021, 16:32:40 UTC, committed by Linus Torvalds on 23 May 2021, 16:32:40 UTC
Pull perf fixes from Thomas Gleixner:
 "Two perf fixes:

   - Do not check the LBR_TOS MSR when setting up unrelated LBR MSRs as
     this can cause malfunction when TOS is not supported

   - Allocate the LBR XSAVE buffers along with the DS buffers upfront
     because allocating them when adding an event can deadlock"

* tag 'perf-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/lbr: Remove cpuc->lbr_xsave allocation from atomic context
  perf/x86: Avoid touching LBR_TOS MSR for Arch LBR
2 parent s 0898678 + 488e13a
History
Tip revision: 6ebb6814a1ef9573d8488232b50dc53b394c025a authored by Linus Torvalds on 23 May 2021, 16:32:40 UTC
Merge tag 'perf-urgent-2021-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Tip revision: 6ebb681
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