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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-10 10:17:09 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-10 10:17:09 -0700 |
commit | d82991a8688ad128b46db1b42d5d84396487a508 (patch) | |
tree | a0743d346c23df3dd057c89b83100c09a376224a /include/trace | |
parent | f4e5b30d809d3882c69f43b5c90779af033d40c4 (diff) | |
parent | ccba8b64452b8dbf2c9670de026d00f519bb5da0 (diff) | |
download | linux-d82991a8688ad128b46db1b42d5d84396487a508.tar.bz2 |
Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull restartable sequence support from Thomas Gleixner:
"The restartable sequences syscall (finally):
After a lot of back and forth discussion and massive delays caused by
the speculative distraction of maintainers, the core set of
restartable sequences has finally reached a consensus.
It comes with the basic non disputed core implementation along with
support for arm, powerpc and x86 and a full set of selftests
It was exposed to linux-next earlier this week, so it does not fully
comply with the merge window requirements, but there is really no
point to drag it out for yet another cycle"
* 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq/selftests: Provide Makefile, scripts, gitignore
rseq/selftests: Provide parametrized tests
rseq/selftests: Provide basic percpu ops test
rseq/selftests: Provide basic test
rseq/selftests: Provide rseq library
selftests/lib.mk: Introduce OVERRIDE_TARGETS
powerpc: Wire up restartable sequences system call
powerpc: Add syscall detection for restartable sequences
powerpc: Add support for restartable sequences
x86: Wire up restartable sequence system call
x86: Add support for restartable sequences
arm: Wire up restartable sequences system call
arm: Add syscall detection for restartable sequences
arm: Add restartable sequences support
rseq: Introduce restartable sequences system call
uapi/headers: Provide types_32_64.h
Diffstat (limited to 'include/trace')
-rw-r--r-- | include/trace/events/rseq.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/trace/events/rseq.h b/include/trace/events/rseq.h new file mode 100644 index 000000000000..a04a64bc1a00 --- /dev/null +++ b/include/trace/events/rseq.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM rseq + +#if !defined(_TRACE_RSEQ_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_RSEQ_H + +#include <linux/tracepoint.h> +#include <linux/types.h> + +TRACE_EVENT(rseq_update, + + TP_PROTO(struct task_struct *t), + + TP_ARGS(t), + + TP_STRUCT__entry( + __field(s32, cpu_id) + ), + + TP_fast_assign( + __entry->cpu_id = raw_smp_processor_id(); + ), + + TP_printk("cpu_id=%d", __entry->cpu_id) +); + +TRACE_EVENT(rseq_ip_fixup, + + TP_PROTO(unsigned long regs_ip, unsigned long start_ip, + unsigned long post_commit_offset, unsigned long abort_ip), + + TP_ARGS(regs_ip, start_ip, post_commit_offset, abort_ip), + + TP_STRUCT__entry( + __field(unsigned long, regs_ip) + __field(unsigned long, start_ip) + __field(unsigned long, post_commit_offset) + __field(unsigned long, abort_ip) + ), + + TP_fast_assign( + __entry->regs_ip = regs_ip; + __entry->start_ip = start_ip; + __entry->post_commit_offset = post_commit_offset; + __entry->abort_ip = abort_ip; + ), + + TP_printk("regs_ip=0x%lx start_ip=0x%lx post_commit_offset=%lu abort_ip=0x%lx", + __entry->regs_ip, __entry->start_ip, + __entry->post_commit_offset, __entry->abort_ip) +); + +#endif /* _TRACE_SOCK_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |