wip

Author: snajpa

include/linux/syslog_namespace.h

@@ -75,6 +75,8 @@ struct syslog_namespace {
 };
 
 extern struct syslog_namespace init_syslog_ns;
+extern struct printk_ringbuffer *init_prb;
+extern struct latched_seq init_clear_seq;
 
 static inline struct syslog_namespace *current_syslog_ns(void)
 {

kernel/printk/printk.c

@@ -1015,9 +1015,9 @@ void log_buf_vmcoreinfo_setup(void)
 	struct dev_printk_info *dev_info = NULL;
 	struct syslog_namespace *ns = &init_syslog_ns;
 
-	VMCOREINFO_SYMBOL(ns->prb);
+	VMCOREINFO_SYMBOL(init_prb);
 	VMCOREINFO_SYMBOL(printk_rb_static);
-	VMCOREINFO_SYMBOL(ns->clear_seq);
+	VMCOREINFO_SYMBOL(init_clear_seq);
 
 	/*
 	 * Export struct size and field offsets. User space tools can
@@ -5016,6 +5016,14 @@ void console_try_replay_all(void)
 	}
 }
 
+struct printk_ringbuffer *init_prb = &printk_rb_static;
+
+struct latched_seq init_clear_seq = {
+	.latch		= SEQCNT_LATCH_ZERO(clear_seq.latch),
+	.val[0]		= 0,
+	.val[1]		= 0,
+};
+
 struct syslog_namespace init_syslog_ns = {
 	.user_ns = &init_user_ns,
 	.ucounts = NULL,

kernel/syslog_namespace.c

@@ -68,6 +68,7 @@ int syslog_ns_setup_log_buf(struct syslog_namespace *ns,
 		 infos);
 
 	ns->prb = prb;
+	init_prb = prb;
 	return 0;
 
 fail_free_descs: