coredump: only SIGKILL should interrupt the coredumping task

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / coredump.c

diff --git a/fs/coredump.c b/fs/coredump.c
index d52f6bd5ad8e39ec67f8dda1922e47acaa679697..f91cfd8cd5f2ec83284dac73eacd5b71d8449fd1 100644 (file)
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -280,8 +280,8 @@ static int zap_process(struct task_struct *start, int exit_code)
        return nr;
 }
 
-static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
-                               struct core_state *core_state, int exit_code)
+static int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
+                       struct core_state *core_state, int exit_code)
 {
        struct task_struct *g, *p;
        unsigned long flags;
@@ -291,6 +291,9 @@ static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
        if (!signal_group_exit(tsk->signal)) {
                mm->core_state = core_state;
                nr = zap_process(tsk, exit_code);
+               /* ignore all signals except SIGKILL, see prepare_signal() */
+               tsk->signal->flags |= SIGNAL_GROUP_COREDUMP;
+               clear_tsk_thread_flag(tsk, TIF_SIGPENDING);
        }
        spin_unlock_irq(&tsk->sighand->siglock);
        if (unlikely(nr < 0))
@@ -514,12 +517,6 @@ void do_coredump(siginfo_t *siginfo)
 
        old_cred = override_creds(cred);
 
-       /*
-        * Clear any false indication of pending signals that might
-        * be seen by the filesystem code called to write the core file.
-        */
-       clear_thread_flag(TIF_SIGPENDING);
-
        ispipe = format_corename(&cn, &cprm);
 
        if (ispipe) {