audit: include auditd's threads in audit_log_start() wait exception

Should auditd spawn threads, allow all members of its thread group to
use the audit_backlog_limit reserves to bypass the queue limits too.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: minor upstream merge tweaks]
Signed-off-by: Paul Moore <pmoore@redhat.com>

diff --git a/kernel/audit.c b/kernel/audit.c
index 07d60e4..60c9c5a 100644 (file)
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1371,7 +1371,7 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
                return NULL;
 
        if (gfp_mask & __GFP_DIRECT_RECLAIM) {
-               if (audit_pid && audit_pid == current->pid)
+               if (audit_pid && audit_pid == current->tgid)
                        gfp_mask &= ~__GFP_DIRECT_RECLAIM;
                else
                        reserve = 0;