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authorSteven Whitehouse <swhiteho@redhat.com>2009-06-03 14:52:03 +0100
committerSteven Rostedt <rostedt@goodmis.org>2009-06-03 10:29:48 -0400
commit56d8bd3f0b98972312cad683947ec90b21011199 (patch)
tree8ed2bb43d0f00923dd81b5b2c19c91b09e3977c6 /kernel
parent048dc50c5e7eada19ebabbad70b7966d14283d41 (diff)
downloadop-kernel-dev-56d8bd3f0b98972312cad683947ec90b21011199.zip
op-kernel-dev-56d8bd3f0b98972312cad683947ec90b21011199.tar.gz
tracing: fix multiple use of __print_flags and __print_symbolic
Here is an updated patch to include the extra call to trace_seq_init() as requested. This is vs. the latest -tip tree and fixes the use of multiple __print_flags and __print_symbolic in a single tracer. Also tested to ensure its working now: mount.gfs2-2534 [000] 235.850587: gfs2_glock_queue: 8.7 glock 1:2 dequeue PR mount.gfs2-2534 [000] 235.850591: gfs2_demote_rq: 8.7 glock 1:0 demote EX to NL flags:DI mount.gfs2-2534 [000] 235.850591: gfs2_glock_queue: 8.7 glock 1:0 dequeue EX glock_workqueue-2529 [000] 235.850666: gfs2_glock_state_change: 8.7 glock 1:0 state EX => NL tgt:NL dmt:NL flags:lDpI glock_workqueue-2529 [000] 235.850672: gfs2_glock_put: 8.7 glock 1:0 state NL => IV flags:I Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> LKML-Reference: <1244037123.29604.603.camel@localhost.localdomain> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_output.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 8dadbbb..8afeea4 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -223,10 +223,9 @@ ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
{
unsigned long mask;
const char *str;
+ const char *ret = p->buffer + p->len;
int i;
- trace_seq_init(p);
-
for (i = 0; flag_array[i].name && flags; i++) {
mask = flag_array[i].mask;
@@ -249,7 +248,7 @@ ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
trace_seq_putc(p, 0);
- return p->buffer;
+ return ret;
}
EXPORT_SYMBOL(ftrace_print_flags_seq);
@@ -258,8 +257,7 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
const struct trace_print_flags *symbol_array)
{
int i;
-
- trace_seq_init(p);
+ const char *ret = p->buffer + p->len;
for (i = 0; symbol_array[i].name; i++) {
@@ -275,7 +273,7 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
trace_seq_putc(p, 0);
- return p->buffer;
+ return ret;
}
EXPORT_SYMBOL(ftrace_print_symbols_seq);
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