Commit 52785b6a authored by Wei Yongjun's avatar Wei Yongjun Committed by Paul E. McKenney
Browse files

kcsan: Use GFP_ATOMIC under spin lock 



A spin lock is held in insert_report_filterlist(), so the krealloc()
should use GFP_ATOMIC.  This commit therefore makes this change.

Reviewed-by: default avatarMarco Elver <elver@google.com>
Signed-off-by: default avatarWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent eba9c444

kernel/kcsan/debugfs.c

+2 −2
Original line number Diff line number Diff line
@@ -230,7 +230,7 @@ static ssize_t insert_report_filterlist(const char *func) 
		/* initial allocation */

		report_filterlist.addrs =

			kmalloc_array(report_filterlist.size,

				      sizeof(unsigned long), GFP_KERNEL);

				      sizeof(unsigned long), GFP_ATOMIC);

		if (report_filterlist.addrs == NULL) {

			ret = -ENOMEM;

			goto out;
@@ -240,7 +240,7 @@ static ssize_t insert_report_filterlist(const char *func) 
		size_t new_size = report_filterlist.size * 2;

		unsigned long *new_addrs =

			krealloc(report_filterlist.addrs,

				 new_size * sizeof(unsigned long), GFP_KERNEL);

				 new_size * sizeof(unsigned long), GFP_ATOMIC);



		if (new_addrs == NULL) {

			/* leave filterlist itself untouched */