X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=fs%2Faio.c;h=1157e13a36d681ecba8e926bb9e91943cfeb6723;hb=a909d3e636995ba7c349e2ca5dbb528154d4ac30;hp=4fe81d1c60f962b53392a6b4b0d047f129509c87;hpb=5acb6052ce304d89e36f599f1e27a7c63d389ca0;p=cascardo%2Flinux.git

diff --git a/fs/aio.c b/fs/aio.c
index 4fe81d1c60f9..1157e13a36d6 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -274,14 +274,17 @@ __initcall(aio_setup);
 static void put_aio_ring_file(struct kioctx *ctx)
 {
 	struct file *aio_ring_file = ctx->aio_ring_file;
+	struct address_space *i_mapping;
+
 	if (aio_ring_file) {
 		truncate_setsize(aio_ring_file->f_inode, 0);
 
 		/* Prevent further access to the kioctx from migratepages */
-		spin_lock(&aio_ring_file->f_inode->i_mapping->private_lock);
-		aio_ring_file->f_inode->i_mapping->private_data = NULL;
+		i_mapping = aio_ring_file->f_inode->i_mapping;
+		spin_lock(&i_mapping->private_lock);
+		i_mapping->private_data = NULL;
 		ctx->aio_ring_file = NULL;
-		spin_unlock(&aio_ring_file->f_inode->i_mapping->private_lock);
+		spin_unlock(&i_mapping->private_lock);
 
 		fput(aio_ring_file);
 	}