1 files changed, 5 insertions, 8 deletions

diff --git a/fs/exec.c b/fs/exec.c
index bff43aeb235e..5e559013e303 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1379,17 +1379,14 @@ EXPORT_SYMBOL(set_binfmt);
  * name into corename, which must have space for at least
  * CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.
  */
-static int format_corename(char *corename, const char *pattern, long signr)
+static int format_corename(char *corename, int nr_threads, long signr)
 {
-        const char *pat_ptr = pattern;
+        const char *pat_ptr = core_pattern;
+        int ispipe = (*pat_ptr == '|');
         char *out_ptr = corename;
         char *const out_end = corename + CORENAME_MAX_SIZE;
         int rc;
         int pid_in_pattern = 0;
-        int ispipe = 0;
-
-        if (*pattern == '|')
-                ispipe = 1;
 
         /* Repeat as long as we have more pattern to process and more output
            space */
@@ -1490,7 +1487,7 @@ static int format_corename(char *corename, const char *pattern, long signr)
          * and core_uses_pid is set, then .%pid will be appended to
          * the filename. Do not do this for piped commands. */
         if (!ispipe && !pid_in_pattern
-            && (core_uses_pid || atomic_read(&current->mm->mm_users) != 1)) {
+            && (core_uses_pid || nr_threads)) {
                 rc = snprintf(out_ptr, out_end - out_ptr,
                               ".%d", task_tgid_vnr(current));
                 if (rc > out_end - out_ptr)
@@ -1753,7 +1750,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
          * uses lock_kernel()
          */
         lock_kernel();
-        ispipe = format_corename(corename, core_pattern, signr);
+        ispipe = format_corename(corename, retval, signr);
         unlock_kernel();
         /*
          * Don't bother to check the RLIMIT_CORE value if core_pattern points