Merge branch 'block' of git://brick.kernel.dk/data/git/linux-2.6-block

* 'block' of git://brick.kernel.dk/data/git/linux-2.6-block: (67 commits)
  [PATCH] blk_queue_start_tag() shared map race fix
  [PATCH] Update axboe@suse.de email address
  [PATCH] fix creating zero sized bio mempools in low memory system
  [PATCH] CONFIG_BLOCK: blk_congestion_wait() fix
  [PATCH] CONFIG_BLOCK internal.h cleanups
  [PATCH] BLOCK: Make USB storage depend on SCSI rather than selecting it [try #6]
  [PATCH] BLOCK: Make it possible to disable the block layer [try #6]
  [PATCH] BLOCK: Remove no-longer necessary linux/buffer_head.h inclusions [try #6]
  [PATCH] BLOCK: Remove no-longer necessary linux/mpage.h inclusions [try #6]
  [PATCH] BLOCK: Move the msdos device ioctl compat stuff to the msdos driver [try #6]
  [PATCH] BLOCK: Move the Ext3 device ioctl compat stuff to the Ext3 driver [try #6]
  [PATCH] BLOCK: Move the Ext2 device ioctl compat stuff to the Ext2 driver [try #6]
  [PATCH] BLOCK: Move the ReiserFS device ioctl compat stuff to the ReiserFS driver [try #6]
  [PATCH] BLOCK: Move common FS-specific ioctls to linux/fs.h [try #6]
  [PATCH] BLOCK: Move the loop device ioctl compat stuff to the loop driver [try #6]
  [PATCH] BLOCK: Move __invalidate_device() to block_dev.c [try #6]
  [PATCH] BLOCK: Dissociate generic_writepages() from mpage stuff [try #6]
  [PATCH] BLOCK: Remove dependence on existence of blockdev_superblock [try #6]
  [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6]
  [PATCH] BLOCK: Don't call block_sync_page() from AFS [try #6]
  ...

1 files changed, 4 insertions, 5 deletions

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 892643dc9af1..c403b66ec83c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -22,8 +22,7 @@
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
 #include <linux/buffer_head.h>
-
-extern struct super_block *blockdev_superblock;
+#include "internal.h"
 
 /**
  *      __mark_inode_dirty -    internal function
@@ -320,7 +319,7 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc)
 
                 if (!bdi_cap_writeback_dirty(bdi)) {
                         list_move(&inode->i_list, &sb->s_dirty);
-                        if (sb == blockdev_superblock) {
+                        if (sb_is_blkdev_sb(sb)) {
                                 /*
                                  * Dirty memory-backed blockdev: the ramdisk
                                  * driver does this.  Skip just this inode
@@ -337,14 +336,14 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc)
 
                 if (wbc->nonblocking && bdi_write_congested(bdi)) {
                         wbc->encountered_congestion = 1;
-                        if (sb != blockdev_superblock)
+                        if (!sb_is_blkdev_sb(sb))
                                 break;          /* Skip a congested fs */
                         list_move(&inode->i_list, &sb->s_dirty);
                         continue;               /* Skip a congested blockdev */
                 }
 
                 if (wbc->bdi && bdi != wbc->bdi) {
-                        if (sb != blockdev_superblock)
+                        if (!sb_is_blkdev_sb(sb))
                                 break;          /* fs has the wrong queue */
                         list_move(&inode->i_list, &sb->s_dirty);
                         continue;               /* blockdev has wrong queue */