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| author | Andy Lutomirski | 2017-10-14 18:59:50 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2017-10-18 15:25:02 +0200 |
| commit | 4e57b94664fef55aa71cac33b4632fdfdd52b695 (patch) | |
| tree | e1d26524e19b53b33f6dc38942b0f0e9ea645256 /arch/x86/kernel/pci-swiotlb.c | |
| parent | x86/mm/64: Remove the last VM_BUG_ON() from the TLB code (diff) | |
| download | kernel-qcow2-linux-4e57b94664fef55aa71cac33b4632fdfdd52b695.tar.gz kernel-qcow2-linux-4e57b94664fef55aa71cac33b4632fdfdd52b695.tar.xz kernel-qcow2-linux-4e57b94664fef55aa71cac33b4632fdfdd52b695.zip | |
x86/mm: Tidy up "x86/mm: Flush more aggressively in lazy TLB mode"
Due to timezones, commit:
b956575bed91 ("x86/mm: Flush more aggressively in lazy TLB mode")
was an outdated patch that well tested and fixed the bug but didn't
address Borislav's review comments.
Tidy it up:
- The name "tlb_use_lazy_mode()" was highly confusing. Change it to
"tlb_defer_switch_to_init_mm()", which describes what it actually
means.
- Move the static_branch crap into a helper.
- Improve comments.
Actually removing the debugfs option is in the next patch.
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: b956575bed91 ("x86/mm: Flush more aggressively in lazy TLB mode")
Link: http://lkml.kernel.org/r/154ef95428d4592596b6e98b0af1d2747d6cfbf8.1508000261.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/pci-swiotlb.c')
0 files changed, 0 insertions, 0 deletions