X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=fs%2Fblock_dev.c;h=575076c018f4789c3c5f313f56b7b09674604baf;hb=2f8d16a996da0b9be2536994aa7a825418364471;hp=fc7028b685f29ab94d5db4ef26dbb897573c6af5;hpb=d5112a4f31a361409d3c57dc9d58dd69f8014bef;p=powerpc.git

diff --git a/fs/block_dev.c b/fs/block_dev.c
index fc7028b685..575076c018 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -489,7 +489,7 @@ static void bdev_clear_inode(struct inode *inode)
 	spin_unlock(&bdev_lock);
 }
 
-static struct super_operations bdev_sops = {
+static const struct super_operations bdev_sops = {
 	.statfs = simple_statfs,
 	.alloc_inode = bdev_alloc_inode,
 	.destroy_inode = bdev_destroy_inode,
@@ -1101,6 +1101,13 @@ static int __blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags,
 			int for_part);
 static int __blkdev_put(struct block_device *bdev, int for_part);
 
+/*
+ * bd_mutex locking:
+ *
+ *  mutex_lock(part->bd_mutex)
+ *    mutex_lock_nested(whole->bd_mutex, 1)
+ */
+
 static int do_open(struct block_device *bdev, struct file *file, int for_part)
 {
 	struct module *owner = NULL;