dax: improve comment about truncate race

[mirror_ubuntu-zesty-kernel.git] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 198243717da567bd5f47ad7c94ab823a82506c62..28cc525b8d59a541c544c4a98dd1168065a4daa8 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -28,6 +28,7 @@
 #include <linux/namei.h>
 #include <linux/log2.h>
 #include <linux/cleancache.h>
+#include <linux/dax.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
@@ -1769,7 +1770,7 @@ void iterate_bdevs(void (*func)(struct block_device *, void *), void *arg)
 {
        struct inode *inode, *old_inode = NULL;
 
-       spin_lock(&inode_sb_list_lock);
+       spin_lock(&blockdev_superblock->s_inode_list_lock);
        list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list) {
                struct address_space *mapping = inode->i_mapping;
 
@@ -1781,13 +1782,13 @@ void iterate_bdevs(void (*func)(struct block_device *, void *), void *arg)
                }
                __iget(inode);
                spin_unlock(&inode->i_lock);
-               spin_unlock(&inode_sb_list_lock);
+               spin_unlock(&blockdev_superblock->s_inode_list_lock);
                /*
                 * We hold a reference to 'inode' so it couldn't have been
                 * removed from s_inodes list while we dropped the
-                * inode_sb_list_lock.  We cannot iput the inode now as we can
+                * s_inode_list_lock  We cannot iput the inode now as we can
                 * be holding the last reference and we cannot iput it under
-                * inode_sb_list_lock. So we keep the reference and iput it
+                * s_inode_list_lock. So we keep the reference and iput it
                 * later.
                 */
                iput(old_inode);
@@ -1795,8 +1796,8 @@ void iterate_bdevs(void (*func)(struct block_device *, void *), void *arg)
 
                func(I_BDEV(inode), arg);
 
-               spin_lock(&inode_sb_list_lock);
+               spin_lock(&blockdev_superblock->s_inode_list_lock);
        }
-       spin_unlock(&inode_sb_list_lock);
+       spin_unlock(&blockdev_superblock->s_inode_list_lock);
        iput(old_inode);
 }