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

6 files changed, 49 insertions, 34 deletions

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 96337a4fbbdf..0de69c9a08be 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -643,11 +643,10 @@ static ssize_t ocfs2_direct_IO(int rw,
         if (i_size_read(inode) <= offset)
                 return 0;
 
-        ret = blockdev_direct_IO_no_locking(rw, iocb, inode,
-                                            inode->i_sb->s_bdev, iov, offset,
-                                            nr_segs,
-                                            ocfs2_direct_IO_get_blocks,
-                                            ocfs2_dio_end_io);
+        ret = __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev,
+                                   iov, offset, nr_segs,
+                                   ocfs2_direct_IO_get_blocks,
+                                   ocfs2_dio_end_io, NULL, 0);
 
         mlog_exit(ret);
         return ret;
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index bef34d0528d5..c2903b84bb7a 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -213,10 +213,12 @@ static int dlmfs_file_setattr(struct dentry *dentry, struct iattr *attr)
 
         attr->ia_valid &= ~ATTR_SIZE;
         error = inode_change_ok(inode, attr);
-        if (!error)
-                error = inode_setattr(inode, attr);
+        if (error)
+                return error;
 
-        return error;
+        setattr_copy(inode, attr);
+        mark_inode_dirty(inode);
+        return 0;
 }
 
 static unsigned int dlmfs_file_poll(struct file *file, poll_table *wait)
@@ -354,13 +356,12 @@ static void dlmfs_destroy_inode(struct inode *inode)
         kmem_cache_free(dlmfs_inode_cache, DLMFS_I(inode));
 }
 
-static void dlmfs_clear_inode(struct inode *inode)
+static void dlmfs_evict_inode(struct inode *inode)
 {
         int status;
         struct dlmfs_inode_private *ip;
 
-        if (!inode)
-                return;
+        end_writeback(inode);
 
         mlog(0, "inode %lu\n", inode->i_ino);
 
@@ -630,7 +631,7 @@ static const struct super_operations dlmfs_ops = {
         .statfs         = simple_statfs,
         .alloc_inode    = dlmfs_alloc_inode,
         .destroy_inode  = dlmfs_destroy_inode,
-        .clear_inode    = dlmfs_clear_inode,
+        .evict_inode    = dlmfs_evict_inode,
         .drop_inode     = generic_delete_inode,
 };
 
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 2b10b36d1577..81296b4e3646 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1233,18 +1233,26 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
         }
 
         /*
-         * This will intentionally not wind up calling simple_setsize(),
+         * This will intentionally not wind up calling truncate_setsize(),
          * since all the work for a size change has been done above.
          * Otherwise, we could get into problems with truncate as
          * ip_alloc_sem is used there to protect against i_size
          * changes.
+         *
+         * XXX: this means the conditional below can probably be removed.
          */
-        status = inode_setattr(inode, attr);
-        if (status < 0) {
-                mlog_errno(status);
-                goto bail_commit;
+        if ((attr->ia_valid & ATTR_SIZE) &&
+            attr->ia_size != i_size_read(inode)) {
+                status = vmtruncate(inode, attr->ia_size);
+                if (status) {
+                        mlog_errno(status);
+                        goto bail_commit;
+                }
         }
 
+        setattr_copy(inode, attr);
+        mark_inode_dirty(inode);
+
         status = ocfs2_mark_inode_dirty(handle, inode, bh);
         if (status < 0)
                 mlog_errno(status);
@@ -2300,12 +2308,12 @@ relock:
                          * blocks outside i_size. Trim these off again.
                          * Don't need i_size_read because we hold i_mutex.
                          *
-                         * XXX(hch): this looks buggy because ocfs2 did not
+                         * XXX(truncate): this looks buggy because ocfs2 did not
                          * actually implement ->truncate.  Take a look at
                          * the new truncate sequence and update this accordingly
                          */
                         if (*ppos + count > inode->i_size)
-                                simple_setsize(inode, inode->i_size);
+                                truncate_setsize(inode, inode->i_size);
                         ret = written;
                         goto out_dio;
                 }
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index abb0a95cc717..0492464916b1 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -969,7 +969,7 @@ static void ocfs2_cleanup_delete_inode(struct inode *inode,
         truncate_inode_pages(&inode->i_data, 0);
 }
 
-void ocfs2_delete_inode(struct inode *inode)
+static void ocfs2_delete_inode(struct inode *inode)
 {
         int wipe, status;
         sigset_t oldset;
@@ -1075,20 +1075,17 @@ bail_unlock_nfs_sync:
 bail_unblock:
         ocfs2_unblock_signals(&oldset);
 bail:
-        clear_inode(inode);
         mlog_exit_void();
 }
 
-void ocfs2_clear_inode(struct inode *inode)
+static void ocfs2_clear_inode(struct inode *inode)
 {
         int status;
         struct ocfs2_inode_info *oi = OCFS2_I(inode);
 
         mlog_entry_void();
 
-        if (!inode)
-                goto bail;
-
+        end_writeback(inode);
         mlog(0, "Clearing inode: %llu, nlink = %u\n",
              (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_nlink);
 
@@ -1180,16 +1177,27 @@ void ocfs2_clear_inode(struct inode *inode)
         jbd2_journal_release_jbd_inode(OCFS2_SB(inode->i_sb)->journal->j_journal,
                                        &oi->ip_jinode);
 
-bail:
         mlog_exit_void();
 }
 
+void ocfs2_evict_inode(struct inode *inode)
+{
+        if (!inode->i_nlink ||
+            (OCFS2_I(inode)->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)) {
+                ocfs2_delete_inode(inode);
+        } else {
+                truncate_inode_pages(&inode->i_data, 0);
+        }
+        ocfs2_clear_inode(inode);
+}
+
 /* Called under inode_lock, with no more references on the
  * struct inode, so it's safe here to check the flags field
  * and to manipulate i_nlink without any other locks. */
-void ocfs2_drop_inode(struct inode *inode)
+int ocfs2_drop_inode(struct inode *inode)
 {
         struct ocfs2_inode_info *oi = OCFS2_I(inode);
+        int res;
 
         mlog_entry_void();
 
@@ -1197,11 +1205,12 @@ void ocfs2_drop_inode(struct inode *inode)
              (unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags);
 
         if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)
-                generic_delete_inode(inode);
+                res = 1;
         else
-                generic_drop_inode(inode);
+                res = generic_drop_inode(inode);
 
         mlog_exit_void();
+        return res;
 }
 
 /*
diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h
index 9f5f5fcadc45..6de5a869db30 100644
--- a/fs/ocfs2/inode.h
+++ b/fs/ocfs2/inode.h
@@ -123,9 +123,8 @@ static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode)
         return &OCFS2_I(inode)->ip_metadata_cache;
 }
 
-void ocfs2_clear_inode(struct inode *inode);
-void ocfs2_delete_inode(struct inode *inode);
-void ocfs2_drop_inode(struct inode *inode);
+void ocfs2_evict_inode(struct inode *inode);
+int ocfs2_drop_inode(struct inode *inode);
 
 /* Flags for ocfs2_iget() */
 #define OCFS2_FI_FLAG_SYSFILE           0x1
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 03a799fdd740..fa1be1b304d1 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -145,8 +145,7 @@ static const struct super_operations ocfs2_sops = {
         .alloc_inode    = ocfs2_alloc_inode,
         .destroy_inode  = ocfs2_destroy_inode,
         .drop_inode     = ocfs2_drop_inode,
-        .clear_inode    = ocfs2_clear_inode,
-        .delete_inode   = ocfs2_delete_inode,
+        .evict_inode    = ocfs2_evict_inode,
         .sync_fs        = ocfs2_sync_fs,
         .put_super      = ocfs2_put_super,
         .remount_fs     = ocfs2_remount,