[PATCH] bcachefs: Don't lock exec_update_lock

[Alan Huang]

exec_update_lock is used to check permissions, no need here.

Signed-off-by: Alan Huang <mmpgour...@gmail.com>
---
 fs/bcachefs/util.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/bcachefs/util.c b/fs/bcachefs/util.c
index 05b40debf211..7a4436fd4441 100644
--- a/fs/bcachefs/util.c
+++ b/fs/bcachefs/util.c
@@ -299,17 +299,12 @@ int bch2_save_backtrace(bch_stacktrace *stack, struct 
task_struct *task, unsigne
        if (ret)
                return ret;
 
-       if (!down_read_trylock(&task->signal->exec_update_lock))
-               return -1;
-
        do {
                nr_entries = stack_trace_save_tsk(task, stack->data, 
stack->size, skipnr + 1);
        } while (nr_entries == stack->size &&
                 !(ret = darray_make_room_gfp(stack, stack->size * 2, gfp)));
 
        stack->nr = nr_entries;
-       up_read(&task->signal->exec_update_lock);
-
        return ret;
 #else
        return 0;
-- 
2.48.1