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Subject[PATCH 4/7] fs/proc/base.c kernel/latencytop.c: Convert sprintf_symbol to %ps
Date
Use temporary lr for struct latency_record for improved readability
and fewer columns used. Removed trailing space from output.

Signed-off-by: Joe Perches <joe@perches.com>
---
fs/proc/base.c | 22 ++++++++--------------
kernel/latencytop.c | 23 +++++++++--------------
2 files changed, 17 insertions(+), 28 deletions(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index f3d02ca..1e0cbf4 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -373,24 +373,18 @@ static int lstats_show_proc(struct seq_file *m, void *v)
return -ESRCH;
seq_puts(m, "Latency Top version : v0.1\n");
for (i = 0; i < 32; i++) {
- if (task->latency_record[i].backtrace[0]) {
+ struct latency_record *lr = &task->latency_record[i];
+ if (lr->backtrace[0]) {
int q;
- seq_printf(m, "%i %li %li ",
- task->latency_record[i].count,
- task->latency_record[i].time,
- task->latency_record[i].max);
+ seq_printf(m, "%i %li %li",
+ lr->count, lr->time, lr->max);
for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
- char sym[KSYM_SYMBOL_LEN];
- char *c;
- if (!task->latency_record[i].backtrace[q])
+ unsigned long bt = lr->backtrace[q];
+ if (!bt)
break;
- if (task->latency_record[i].backtrace[q] == ULONG_MAX)
+ if (bt == ULONG_MAX)
break;
- sprint_symbol(sym, task->latency_record[i].backtrace[q]);
- c = strchr(sym, '+');
- if (c)
- *c = 0;
- seq_printf(m, "%s ", sym);
+ seq_printf(m, " %ps", (void *)bt);
}
seq_printf(m, "\n");
}
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index 877fb30..7cbbf5c 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -242,24 +242,19 @@ static int lstats_show(struct seq_file *m, void *v)
seq_puts(m, "Latency Top version : v0.1\n");

for (i = 0; i < MAXLR; i++) {
- if (latency_record[i].backtrace[0]) {
+ struct latency_record *lr = &latency_record[i];
+
+ if (lr->backtrace[0]) {
int q;
- seq_printf(m, "%i %lu %lu ",
- latency_record[i].count,
- latency_record[i].time,
- latency_record[i].max);
+ seq_printf(m, "%i %lu %lu",
+ lr->count, lr->time, lr->max);
for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
- char sym[KSYM_SYMBOL_LEN];
- char *c;
- if (!latency_record[i].backtrace[q])
+ unsigned long bt = lr->backtrace[q];
+ if (!bt)
break;
- if (latency_record[i].backtrace[q] == ULONG_MAX)
+ if (bt == ULONG_MAX)
break;
- sprint_symbol(sym, latency_record[i].backtrace[q]);
- c = strchr(sym, '+');
- if (c)
- *c = 0;
- seq_printf(m, "%s ", sym);
+ seq_printf(m, " %ps", (void *)bt);
}
seq_printf(m, "\n");
}
--
1.7.3.2.146.gca209


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