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Subject[PATCH] audit: wait_for_auditd() should use TASK_UNINTERRUPTIBLE
audit_log_start() does wait_for_auditd() in a loop until
audit_backlog_wait_time passes or audit_skb_queue has a room.

If signal_pending() is true this becomes a busy-wait loop,
schedule() in TASK_INTERRUPTIBLE won't block.

Reported-by: Guy Streeter <streeter@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>

--- x/kernel/audit.c
+++ x/kernel/audit.c
@@ -1056,7 +1056,7 @@ static inline void audit_get_stamp(struc
static void wait_for_auditd(unsigned long sleep_time)
{
DECLARE_WAITQUEUE(wait, current);
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&audit_backlog_wait, &wait);

if (audit_backlog_limit &&


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