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| author | Ingo Molnar <mingo@kernel.org> | 2021-02-12 12:50:09 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-02-12 12:56:55 +0100 |
| commit | 85e853c5ec8486117182baab10c98b321daa6d47 (patch) | |
| tree | 404551f51bc88ba9f4cc64431e2633493a971842 /include/trace/events | |
| parent | dcc0b49040c70ad827a7f3d58a21b01fdb14e749 (diff) | |
| parent | 0d2460ba61841e5c2e64e77f7a84d3fc69cfe899 (diff) | |
| download | linux-85e853c5ec8486117182baab10c98b321daa6d47.tar.gz linux-85e853c5ec8486117182baab10c98b321daa6d47.tar.bz2 linux-85e853c5ec8486117182baab10c98b321daa6d47.zip | |
Merge branch 'for-mingo-rcu' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:
- Documentation updates.
- Miscellaneous fixes.
- kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return
addresses to more easily locate bugs. This has a couple of RCU-related commits,
but is mostly MM. Was pulled in with akpm's agreement.
- Per-callback-batch tracking of numbers of callbacks,
which enables better debugging information and smarter
reactions to large numbers of callbacks.
- The first round of changes to allow CPUs to be runtime switched from and to
callback-offloaded state.
- CONFIG_PREEMPT_RT-related changes.
- RCU CPU stall warning updates.
- Addition of polling grace-period APIs for SRCU.
- Torture-test and torture-test scripting updates, including a "torture everything"
script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale.
Plus does an allmodconfig build.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/trace/events')
| -rw-r--r-- | include/trace/events/rcu.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index 155b5cb43cfd..5fc29400e1a2 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h @@ -505,6 +505,32 @@ TRACE_EVENT_RCU(rcu_callback, __entry->qlen) ); +TRACE_EVENT_RCU(rcu_segcb_stats, + + TP_PROTO(struct rcu_segcblist *rs, const char *ctx), + + TP_ARGS(rs, ctx), + + TP_STRUCT__entry( + __field(const char *, ctx) + __array(unsigned long, gp_seq, RCU_CBLIST_NSEGS) + __array(long, seglen, RCU_CBLIST_NSEGS) + ), + + TP_fast_assign( + __entry->ctx = ctx; + memcpy(__entry->seglen, rs->seglen, RCU_CBLIST_NSEGS * sizeof(long)); + memcpy(__entry->gp_seq, rs->gp_seq, RCU_CBLIST_NSEGS * sizeof(unsigned long)); + + ), + + TP_printk("%s seglen: (DONE=%ld, WAIT=%ld, NEXT_READY=%ld, NEXT=%ld) " + "gp_seq: (DONE=%lu, WAIT=%lu, NEXT_READY=%lu, NEXT=%lu)", __entry->ctx, + __entry->seglen[0], __entry->seglen[1], __entry->seglen[2], __entry->seglen[3], + __entry->gp_seq[0], __entry->gp_seq[1], __entry->gp_seq[2], __entry->gp_seq[3]) + +); + /* * Tracepoint for the registration of a single RCU callback of the special * kvfree() form. The first argument is the RCU type, the second argument |