]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
tracing: fix trace_find_cmdline()
authorThomas Gleixner <tglx@linutronix.de>
Wed, 18 Mar 2009 07:58:44 +0000 (08:58 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 18 Mar 2009 09:10:17 +0000 (10:10 +0100)
commit50d88758a3f9787cbdbdbc030560b815721eab4b
tree02e5c47c5c5bd05e578d1883ccaa1e3bc13c703a
parent2c7eea4c62ba090b7f4583c3d7337ea0019be900
tracing: fix trace_find_cmdline()

Impact: prevent stale command line output

In case there is no valid command line mapping for a pid
trace_find_cmdline() returns without updating the comm buffer. The
trace dump keeps the previous entry which results in confusing trace
output:

     <idle>-0     [000]   280.702056 ....
     <idle>-23456 [000]   280.702080 ....

Update the comm buffer with "<...>" when no mapping is found.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/trace/trace.c