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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-11 04:58:13 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-11 04:58:13 +0100
commit1dd7dcb6eaa677b034e7ef63df8320277507ae70 (patch)
tree3f1592b634d7bdde94e00570925be2dade8433d4 /include/trace
parentMerge branch 'akpm' (patchbomb from Andrew) (diff)
parenttracing: Truncated output is better than nothing (diff)
downloadlinux-1dd7dcb6eaa677b034e7ef63df8320277507ae70.tar.xz
linux-1dd7dcb6eaa677b034e7ef63df8320277507ae70.zip
Merge tag 'trace-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "There was a lot of clean ups and minor fixes. One of those clean ups was to the trace_seq code. It also removed the return values to the trace_seq_*() functions and use trace_seq_has_overflowed() to see if the buffer filled up or not. This is similar to work being done to the seq_file code as well in another tree. Some of the other goodies include: - Added some "!" (NOT) logic to the tracing filter. - Fixed the frame pointer logic to the x86_64 mcount trampolines - Added the logic for dynamic trampolines on !CONFIG_PREEMPT systems. That is, the ftrace trampoline can be dynamically allocated and be called directly by functions that only have a single hook to them" * tag 'trace-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (55 commits) tracing: Truncated output is better than nothing tracing: Add additional marks to signal very large time deltas Documentation: describe trace_buf_size parameter more accurately tracing: Allow NOT to filter AND and OR clauses tracing: Add NOT to filtering logic ftrace/fgraph/x86: Have prepare_ftrace_return() take ip as first parameter ftrace/x86: Get rid of ftrace_caller_setup ftrace/x86: Have save_mcount_regs macro also save stack frames if needed ftrace/x86: Add macro MCOUNT_REG_SIZE for amount of stack used to save mcount regs ftrace/x86: Simplify save_mcount_regs on getting RIP ftrace/x86: Have save_mcount_regs store RIP in %rdi for first parameter ftrace/x86: Rename MCOUNT_SAVE_FRAME and add more detailed comments ftrace/x86: Move MCOUNT_SAVE_FRAME out of header file ftrace/x86: Have static tracing also use ftrace_caller_setup ftrace/x86: Have static function tracing always test for function graph kprobes: Add IPMODIFY flag to kprobe_ftrace_ops ftrace, kprobes: Support IPMODIFY flag to find IP modify conflict kprobes/ftrace: Recover original IP if pre_handler doesn't change it tracing/trivial: Fix typos and make an int into a bool tracing: Deletion of an unnecessary check before iput() ...
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/ftrace.h8
1 files changed, 3 insertions, 5 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 26b4f2e13275..139b5067345b 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -277,14 +277,12 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
field = (typeof(field))iter->ent; \
\
ret = ftrace_raw_output_prep(iter, trace_event); \
- if (ret) \
+ if (ret != TRACE_TYPE_HANDLED) \
return ret; \
\
- ret = trace_seq_printf(s, print); \
- if (!ret) \
- return TRACE_TYPE_PARTIAL_LINE; \
+ trace_seq_printf(s, print); \
\
- return TRACE_TYPE_HANDLED; \
+ return trace_handle_return(s); \
} \
static struct trace_event_functions ftrace_event_type_funcs_##call = { \
.trace = ftrace_raw_output_##call, \