perf_event_comm(tsk);
}
+static void filename_to_taskname(char *tcomm, const char *fn, unsigned int len)
+{
+ int i, ch;
+
+ /* Copies the binary name from after last slash */
+ for (i = 0; (ch = *(fn++)) != '\0';) {
+ if (ch == '/')
+ i = 0; /* overwrite what we wrote */
+ else
+ if (i < len - 1)
+ tcomm[i++] = ch;
+ }
+ tcomm[i] = '\0';
+}
+
int flush_old_exec(struct linux_binprm * bprm)
{
int retval;
set_mm_exe_file(bprm->mm, bprm->file);
+ filename_to_taskname(bprm->tcomm, bprm->filename, sizeof(bprm->tcomm));
/*
* Release all of the old mmap stuff
*/
void setup_new_exec(struct linux_binprm * bprm)
{
- int i, ch;
- const char *name;
- char tcomm[sizeof(current->comm)];
-
arch_pick_mmap_layout(current->mm);
/* This is the point of no return */
else
set_dumpable(current->mm, suid_dumpable);
- name = bprm->filename;
-
- /* Copies the binary name from after last slash */
- for (i=0; (ch = *(name++)) != '\0';) {
- if (ch == '/')
- i = 0; /* overwrite what we wrote */
- else
- if (i < (sizeof(tcomm) - 1))
- tcomm[i++] = ch;
- }
- tcomm[i] = '\0';
- set_task_comm(current, tcomm);
+ set_task_comm(current, bprm->tcomm);
/* Set the new mm task size. We have to do that late because it may
* depend on TIF_32BIT which is only updated in flush_thread() on
{
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
- struct completion *vfork_done;
int core_waiters = -EBUSY;
init_completion(&core_state->startup);
core_waiters = zap_threads(tsk, mm, core_state, exit_code);
up_write(&mm->mmap_sem);
- if (unlikely(core_waiters < 0))
- goto fail;
-
- /*
- * Make sure nobody is waiting for us to release the VM,
- * otherwise we can deadlock when we wait on each other
- */
- vfork_done = tsk->vfork_done;
- if (vfork_done) {
- tsk->vfork_done = NULL;
- complete(vfork_done);
- }
-
- if (core_waiters)
+ if (core_waiters > 0)
wait_for_completion(&core_state->startup);
-fail:
+
return core_waiters;
}