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-rw-r--r--mm/shmem.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index a1b8bf4391c2..8297623fcaed 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2819,6 +2819,10 @@ int __init shmem_init(void)
 {
 	int error;
 
+	/* If rootfs called this, don't re-init */
+	if (shmem_inode_cachep)
+		return 0;
+
 	error = bdi_init(&shmem_backing_dev_info);
 	if (error)
 		goto out4;