The patch titled
Subject: include/linux/trace_seq.h: wove trace_seq_overflowed() out of line
has been removed from the -mm tree. Its filename was
trace-move-trace_seq_overflowed-out-of-line.patch
This patch was dropped because an alternative patch was merged
------------------------------------------------------
From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Subject: include/linux/trace_seq.h: wove trace_seq_overflowed() out of line
Inlining trace_seq_overflowed takes ~17k in text size in my kernel. The
function doesn't seem to be time critical, so we can just out of line it.
Function Total Avg Num
trace_seq_has_overflowed 17134 (0.00%) 33 514
This saves around 6k here
text data bss dec hex filename
9102881 5367568 11116544 25586993 1866d31 vmlinux-orig
9096494 5367568 11116544 25580606 186543e vmlinux-trace-seq
Link: http://lkml.kernel.org/r/20170315021431.13107-2-andi@xxxxxxxxxxxxxx
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/trace_seq.h | 12 +-----------
kernel/trace/trace_seq.c | 15 +++++++++++++++
2 files changed, 16 insertions(+), 11 deletions(-)
diff -puN include/linux/trace_seq.h~trace-move-trace_seq_overflowed-out-of-line include/linux/trace_seq.h
--- a/include/linux/trace_seq.h~trace-move-trace_seq_overflowed-out-of-line
+++ a/include/linux/trace_seq.h
@@ -56,17 +56,7 @@ trace_seq_buffer_ptr(struct trace_seq *s
return s->buffer + seq_buf_used(&s->seq);
}
-/**
- * trace_seq_has_overflowed - return true if the trace_seq took too much
- * @s: trace sequence descriptor
- *
- * Returns true if too much data was added to the trace_seq and it is
- * now full and will not take anymore.
- */
-static inline bool trace_seq_has_overflowed(struct trace_seq *s)
-{
- return s->full || seq_buf_has_overflowed(&s->seq);
-}
+bool trace_seq_has_overflowed(struct trace_seq *s);
/*
* Currently only defined when tracing is enabled.
diff -puN kernel/trace/trace_seq.c~trace-move-trace_seq_overflowed-out-of-line kernel/trace/trace_seq.c
--- a/kernel/trace/trace_seq.c~trace-move-trace_seq_overflowed-out-of-line
+++ a/kernel/trace/trace_seq.c
@@ -375,3 +375,18 @@ int trace_seq_to_user(struct trace_seq *
return seq_buf_to_user(&s->seq, ubuf, cnt);
}
EXPORT_SYMBOL_GPL(trace_seq_to_user);
+
+
+
+/**
+ * trace_seq_has_overflowed - return true if the trace_seq took too much
+ * @s: trace sequence descriptor
+ *
+ * Returns true if too much data was added to the trace_seq and it is
+ * now full and will not take anymore.
+ */
+bool trace_seq_has_overflowed(struct trace_seq *s)
+{
+ return s->full || seq_buf_has_overflowed(&s->seq);
+}
+EXPORT_SYMBOL_GPL(trace_seq_has_overflowed);
_
Patches currently in -mm which might be from ak@xxxxxxxxxxxxxxx are
x86-atomic-move-__atomic_add_unless-out-of-line.patch
sched-out-of-line-__update_load_avg.patch
kref-remove-warn_on-for-null-release-functions.patch
out-of-line-dma_alloc-free_attrs.patch
megasas-remove-expensive-inline-from-megasas_return_cmd.patch
remove-expensive-warn_on-in-pagefault_disabled_dec.patch
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