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tracing/filters: allow user input integer to be oct or hex

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Before patch:

 # echo 'parent_pid == 0x10' > events/sched/sched_process_fork/filter
 # cat sched/sched_process_fork/filter
 parent_pid == 0

After patch:

 # cat sched/sched_process_fork/filter
 parent_pid == 16

Also check the input more strictly.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Tom Zanussi <tzanussi@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <49E04C53.4010600@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Li Zefan 2009-04-11 15:52:51 +08:00 committed by Ingo Molnar
parent bcabd91c27
commit a3e0ab0507
1 changed files with 3 additions and 2 deletions
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5
kernel/trace/trace_events_filter.c
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@ -419,12 +419,13 @@ int filter_parse(char **pbuf, struct filter_pred *pred)
if (!pred->field_name)
return -ENOMEM;
pred->val = simple_strtoull(val_str, &tmp, 10);
pred->val = simple_strtoull(val_str, &tmp, 0);
if (tmp == val_str) {
pred->str_val = kstrdup(val_str, GFP_KERNEL);
if (!pred->str_val)
return -ENOMEM;
}
} else if (*tmp != '\0')
return -EINVAL;
return 0;
}