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-rw-r--r--fs/efivarfs/file.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/efivarfs/file.c b/fs/efivarfs/file.c
index 5f22e74bbade..8e568428c88b 100644
--- a/fs/efivarfs/file.c
+++ b/fs/efivarfs/file.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/efi.h>
+#include <linux/delay.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/mount.h>
@@ -74,6 +75,11 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
 	ssize_t size = 0;
 	int err;
 
+	while (!__ratelimit(&file->f_cred->user->ratelimit)) {
+		if (!msleep_interruptible(50))
+			return -EINTR;
+	}
+
 	err = efivar_entry_size(var, &datasize);
 
 	/*