diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-11-08 09:51:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-11-08 09:51:28 -0800 |
| commit | 6a8d0d283d624302d4377bcf4f40f5bd90c3c775 (patch) | |
| tree | ade26fa612b3e28022ad71c1d2afa564a2f4bbd8 | |
| parent | e942d75281398a8aef4f751753eff26a2a53f081 (diff) | |
| parent | 9d820f68b2bdba5b2e7bf135123c3f57c5051d05 (diff) | |
Merge tag 'core-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull entry code fix from Thomas Gleixner:
"A single fix for the generic entry code to correct the wrong
assumption that the lockdep interrupt state needs not to be
established before calling the RCU check"
* tag 'core-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Fix the incorrect ordering of lockdep and RCU check
| -rw-r--r-- | kernel/entry/common.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 2b8366693d5c..e9e2df3f3f9e 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -337,10 +337,10 @@ noinstr irqentry_state_t irqentry_enter(struct pt_regs *regs) * already contains a warning when RCU is not watching, so no point * in having another one here. */ + lockdep_hardirqs_off(CALLER_ADDR0); instrumentation_begin(); rcu_irq_enter_check_tick(); - /* Use the combo lockdep/tracing function */ - trace_hardirqs_off(); + trace_hardirqs_off_finish(); instrumentation_end(); return ret; |