Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits)
  no need for list_for_each_entry_safe()/resetting with superblock list
  Fix sget() race with failing mount
  vfs: don't hold s_umount over close_bdev_exclusive() call
  sysv: do not mark superblock dirty on remount
  sysv: do not mark superblock dirty on mount
  btrfs: remove junk sb_dirt change
  BFS: clean up the superblock usage
  AFFS: wait for sb synchronization when needed
  AFFS: clean up dirty flag usage
  cifs: truncate fallout
  mbcache: fix shrinker function return value
  mbcache: Remove unused features
  add f_flags to struct statfs(64)
  pass a struct path to vfs_statfs
  update VFS documentation for method changes.
  All filesystems that need invalidate_inode_buffers() are doing that explicitly
  convert remaining ->clear_inode() to ->evict_inode()
  Make ->drop_inode() just return whether inode needs to be dropped
  fs/inode.c:clear_inode() is gone
  fs/inode.c:evict() doesn't care about delete vs. non-delete paths now
  ...

Fix up trivial conflicts in fs/nilfs2/super.c

3 files changed, 17 insertions, 20 deletions

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 12f445cee9f7..03ae894c45de 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -967,14 +967,15 @@ static int do_writepage(struct page *page, int len)
  * the page locked, and it locks @ui_mutex. However, write-back does take inode
  * @i_mutex, which means other VFS operations may be run on this inode at the
  * same time. And the problematic one is truncation to smaller size, from where
- * we have to call 'simple_setsize()', which first changes @inode->i_size, then
+ * we have to call 'truncate_setsize()', which first changes @inode->i_size, then
  * drops the truncated pages. And while dropping the pages, it takes the page
- * lock. This means that 'do_truncation()' cannot call 'simple_setsize()' with
+ * lock. This means that 'do_truncation()' cannot call 'truncate_setsize()' with
  * @ui_mutex locked, because it would deadlock with 'ubifs_writepage()'. This
  * means that @inode->i_size is changed while @ui_mutex is unlocked.
  *
- * XXX: with the new truncate the above is not true anymore, the simple_setsize
- * calls can be replaced with the individual components.
+ * XXX(truncate): with the new truncate sequence this is not true anymore,
+ * and the calls to truncate_setsize can be move around freely.  They should
+ * be moved to the very end of the truncate sequence.
  *
  * But in 'ubifs_writepage()' we have to guarantee that we do not write beyond
  * inode size. How do we do this if @inode->i_size may became smaller while we
@@ -1128,9 +1129,7 @@ static int do_truncation(struct ubifs_info *c, struct inode *inode,
                 budgeted = 0;
         }
 
-        err = simple_setsize(inode, new_size);
-        if (err)
-                goto out_budg;
+        truncate_setsize(inode, new_size);
 
         if (offset) {
                 pgoff_t index = new_size >> PAGE_CACHE_SHIFT;
@@ -1217,16 +1216,14 @@ static int do_setattr(struct ubifs_info *c, struct inode *inode,
 
         if (attr->ia_valid & ATTR_SIZE) {
                 dbg_gen("size %lld -> %lld", inode->i_size, new_size);
-                err = simple_setsize(inode, new_size);
-                if (err)
-                        goto out;
+                truncate_setsize(inode, new_size);
         }
 
         mutex_lock(&ui->ui_mutex);
         if (attr->ia_valid & ATTR_SIZE) {
                 /* Truncation changes inode [mc]time */
                 inode->i_mtime = inode->i_ctime = ubifs_current_time(inode);
-                /* 'simple_setsize()' changed @i_size, update @ui_size */
+                /* 'truncate_setsize()' changed @i_size, update @ui_size */
                 ui->ui_size = inode->i_size;
         }
 
@@ -1248,10 +1245,6 @@ static int do_setattr(struct ubifs_info *c, struct inode *inode,
         if (IS_SYNC(inode))
                 err = inode->i_sb->s_op->write_inode(inode, NULL);
         return err;
-
-out:
-        ubifs_release_budget(c, &req);
-        return err;
 }
 
 int ubifs_setattr(struct dentry *dentry, struct iattr *attr)
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 5fc5a0988970..cd5900b85d38 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -327,7 +327,7 @@ static int ubifs_write_inode(struct inode *inode, struct writeback_control *wbc)
         return err;
 }
 
-static void ubifs_delete_inode(struct inode *inode)
+static void ubifs_evict_inode(struct inode *inode)
 {
         int err;
         struct ubifs_info *c = inode->i_sb->s_fs_info;
@@ -343,9 +343,12 @@ static void ubifs_delete_inode(struct inode *inode)
 
         dbg_gen("inode %lu, mode %#x", inode->i_ino, (int)inode->i_mode);
         ubifs_assert(!atomic_read(&inode->i_count));
-        ubifs_assert(inode->i_nlink == 0);
 
         truncate_inode_pages(&inode->i_data, 0);
+
+        if (inode->i_nlink)
+                goto done;
+
         if (is_bad_inode(inode))
                 goto out;
 
@@ -367,7 +370,8 @@ out:
                 c->nospace = c->nospace_rp = 0;
                 smp_wmb();
         }
-        clear_inode(inode);
+done:
+        end_writeback(inode);
 }
 
 static void ubifs_dirty_inode(struct inode *inode)
@@ -1826,7 +1830,7 @@ const struct super_operations ubifs_super_operations = {
         .destroy_inode = ubifs_destroy_inode,
         .put_super     = ubifs_put_super,
         .write_inode   = ubifs_write_inode,
-        .delete_inode  = ubifs_delete_inode,
+        .evict_inode   = ubifs_evict_inode,
         .statfs        = ubifs_statfs,
         .dirty_inode   = ubifs_dirty_inode,
         .remount_fs    = ubifs_remount_fs,
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 04310878f449..0c9876b396dd 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -379,7 +379,7 @@ struct ubifs_gced_idx_leb {
  * The @ui_size is a "shadow" variable for @inode->i_size and UBIFS uses
  * @ui_size instead of @inode->i_size. The reason for this is that UBIFS cannot
  * make sure @inode->i_size is always changed under @ui_mutex, because it
- * cannot call 'simple_setsize()' with @ui_mutex locked, because it would deadlock
+ * cannot call 'truncate_setsize()' with @ui_mutex locked, because it would deadlock
  * with 'ubifs_writepage()' (see file.c). All the other inode fields are
  * changed under @ui_mutex, so they do not need "shadow" fields. Note, one
  * could consider to rework locking and base it on "shadow" fields.