From 52785b6ae8eded7ac99d65c92d989b702e5b4376 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 17 Apr 2020 02:58:37 +0000 Subject: 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: Marco Elver Signed-off-by: Wei Yongjun Signed-off-by: Paul E. McKenney --- kernel/kcsan/debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/kcsan') diff --git a/kernel/kcsan/debugfs.c b/kernel/kcsan/debugfs.c index 1a08664a7fab..023e49c58d55 100644 --- a/kernel/kcsan/debugfs.c +++ b/kernel/kcsan/debugfs.c @@ -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 */ -- cgit v1.2.3