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| author | Oleg Nesterov <oleg@redhat.com> | 2014-04-07 15:38:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 16:36:05 -0700 |
| commit | 23aebe1691a3d98a79676db6c0fd813e16478804 (patch) | |
| tree | bd64954577711239c9a4fe43436f449a529eabcb /include/trace | |
| parent | 32ed74a4b968a4faff7aaaff557035ce5d5e70ab (diff) | |
| download | linux-23aebe1691a3d98a79676db6c0fd813e16478804.tar.gz linux-23aebe1691a3d98a79676db6c0fd813e16478804.tar.bz2 linux-23aebe1691a3d98a79676db6c0fd813e16478804.zip | |
exec: kill bprm->tcomm[], simplify the "basename" logic
Starting from commit c4ad8f98bef7 ("execve: use 'struct filename *' for
executable name passing") bprm->filename can not go away after
flush_old_exec(), so we do not need to save the binary name in
bprm->tcomm[] added by 96e02d158678 ("exec: fix use-after-free bug in
setup_new_exec()").
And there was never need for filename_to_taskname-like code, we can
simply do set_task_comm(kbasename(filename).
This patch has to change set_task_comm() and trace_task_rename() to
accept "const char *", but I think this change is also good.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/task.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/events/task.h b/include/trace/events/task.h index 102a646e1996..dee3bb1d5a6b 100644 --- a/include/trace/events/task.h +++ b/include/trace/events/task.h @@ -32,7 +32,7 @@ TRACE_EVENT(task_newtask, TRACE_EVENT(task_rename, - TP_PROTO(struct task_struct *task, char *comm), + TP_PROTO(struct task_struct *task, const char *comm), TP_ARGS(task, comm), |