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| author | Ingo Molnar <mingo@kernel.org> | 2017-08-21 09:45:19 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-21 09:45:19 +0200 |
| commit | 94edf6f3c20c9c8ee301bde04150a91bab4bf32c (patch) | |
| tree | 4a2af658258cf42fde24c1224e44c3e6a18c2792 /include/linux/srcutiny.h | |
| parent | d5da6457bfadf64ff78f1816ae8329dbbba19513 (diff) | |
| parent | 656e7c0c0a2e8d899f87fd7f081ea7a711146604 (diff) | |
| download | talos-op-linux-94edf6f3c20c9c8ee301bde04150a91bab4bf32c.tar.gz talos-op-linux-94edf6f3c20c9c8ee301bde04150a91bab4bf32c.zip | |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:
- Removal of spin_unlock_wait()
- SRCU updates
- Torture-test updates
- Documentation updates
- Miscellaneous fixes
- CPU-hotplug fixes
- Miscellaneous non-RCU fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/srcutiny.h')
| -rw-r--r-- | include/linux/srcutiny.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/srcutiny.h b/include/linux/srcutiny.h index cfbfc540cafc..261471f407a5 100644 --- a/include/linux/srcutiny.h +++ b/include/linux/srcutiny.h @@ -87,4 +87,17 @@ static inline void srcu_barrier(struct srcu_struct *sp) synchronize_srcu(sp); } +/* Defined here to avoid size increase for non-torture kernels. */ +static inline void srcu_torture_stats_print(struct srcu_struct *sp, + char *tt, char *tf) +{ + int idx; + + idx = READ_ONCE(sp->srcu_idx) & 0x1; + pr_alert("%s%s Tiny SRCU per-CPU(idx=%d): (%hd,%hd)\n", + tt, tf, idx, + READ_ONCE(sp->srcu_lock_nesting[!idx]), + READ_ONCE(sp->srcu_lock_nesting[idx])); +} + #endif |
