sata_sil24: kill unused local variable idx in sil24_fill_sg()

[powerpc.git] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index fc7028b..575076c 100644 (file)
--- 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;