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[for-next][PATCH 1/7] tracing/uprobe: Drop isdigit() check in create_trace_uprobe

From Steven Rostedt <rostedt@goodmis.org>
Newsgroups linux.kernel
Subject [for-next][PATCH 1/7] tracing/uprobe: Drop isdigit() check in create_trace_uprobe
Date 2016-09-06 15:50 +0200
Message-ID <seoVd-2EA-41@gated-at.bofh.it> (permalink)
References <seoVc-2EA-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Dmitry Safonov <dsafonov@virtuozzo.com>

It's useless. Before:
  [tracing]# echo 'p:test /a:0x0' >> uprobe_events
  [tracing]# echo 'p:test a:0x0' >> uprobe_events
  -bash: echo: write error: No such file or directory
  [tracing]# echo 'p:test 1:0x0' >> uprobe_events
  -bash: echo: write error: Invalid argument

After:
  [tracing]# echo 'p:test 1:0x0' >> uprobe_events
  -bash: echo: write error: No such file or directory

Link: http://lkml.kernel.org/r/20160825152110.25663-3-dsafonov@virtuozzo.com

Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_uprobe.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index c53485441c88..a74f2d9ff379 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -427,10 +427,6 @@ static int create_trace_uprobe(int argc, char **argv)
 		pr_info("Probe point is not specified.\n");
 		return -EINVAL;
 	}
-	if (isdigit(argv[1][0])) {
-		pr_info("probe point must be have a filename.\n");
-		return -EINVAL;
-	}
 	arg = strchr(argv[1], ':');
 	if (!arg) {
 		ret = -EINVAL;
-- 
2.8.1

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Thread

[for-next][PATCH 0/7] tracing: Updates for 4.9 Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200
  [for-next][PATCH 5/7] tracing: Add documentation for hwlat_detector tracer Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200
  [for-next][PATCH 4/7] tracing: Added hardware latency tracer Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200
  [for-next][PATCH 6/7] tracing: Have hwlat trace migrate across tracing_cpumask CPUs Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200
  [for-next][PATCH 1/7] tracing/uprobe: Drop isdigit() check in create_trace_uprobe Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200
  [for-next][PATCH 3/7] ftrace: Access ret_stack->subtime only in the function profiler Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200
  [for-next][PATCH 2/7] function_graph: Handle TRACE_BPUTS in print_graph_comment Steven Rostedt <rostedt@goodmis.org> - 2016-09-06 15:50 +0200

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