Update Linux to v5.4.148

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz

Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index 6ebae6b..7d4af6c 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -622,7 +622,6 @@
 {
 	struct kernfs_node *kn;
 	u32 gen;
-	int cursor;
 	int ret;
 
 	name = kstrdup_const(name, GFP_KERNEL);
@@ -635,11 +634,11 @@
 
 	idr_preload(GFP_KERNEL);
 	spin_lock(&kernfs_idr_lock);
-	cursor = idr_get_cursor(&root->ino_idr);
 	ret = idr_alloc_cyclic(&root->ino_idr, kn, 1, 0, GFP_ATOMIC);
-	if (ret >= 0 && ret < cursor)
+	if (ret >= 0 && ret < root->last_ino)
 		root->next_generation++;
 	gen = root->next_generation;
+	root->last_ino = ret;
 	spin_unlock(&kernfs_idr_lock);
 	idr_preload_end();
 	if (ret < 0)
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index e8c792b..c35bbaa 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -912,7 +912,7 @@
 		}
 
 		fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE,
-			 &name, 0);
+			 NULL, 0);
 		iput(inode);
 	}