Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue:
  vfs: add d_prune dentry operation
  vfs: protect i_nlink
  filesystems: add set_nlink()
  filesystems: add missing nlink wrappers
  logfs: remove unnecessary nlink setting
  ocfs2: remove unnecessary nlink setting
  jfs: remove unnecessary nlink setting
  hypfs: remove unnecessary nlink setting
  vfs: ignore error on forced remount
  readlinkat: ensure we return ENOENT for the empty pathname for normal lookups
  vfs: fix dentry leak in simple_fill_super()

108 files changed, 301 insertions, 235 deletions

diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 653380793a6c..d819ba16a0c7 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -29,6 +29,7 @@ d_hash		no		no		no		maybe
 d_compare:      yes             no              no              maybe
 d_delete:       no              yes             no              no
 d_release:      no              no              yes             no
+d_prune:        no              yes             no              no
 d_iput:         no              no              yes             no
 d_dname:        no              no              no              no
 d_automount:    no              no              yes             no
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 6fe874fc5f8e..481f4f76f664 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -108,9 +108,7 @@ static struct inode *hypfs_make_inode(struct super_block *sb, int mode)
                 ret->i_gid = hypfs_info->gid;
                 ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
                 if (mode & S_IFDIR)
-                        ret->i_nlink = 2;
-                else
-                        ret->i_nlink = 1;
+                        set_nlink(ret, 2);
         }
         return ret;
 }
@@ -361,7 +359,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
         } else if (mode & S_IFDIR) {
                 inode->i_op = &simple_dir_inode_operations;
                 inode->i_fop = &simple_dir_operations;
-                parent->d_inode->i_nlink++;
+                inc_nlink(parent->d_inode);
         } else
                 BUG();
         inode->i_private = data;
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index f1af2228a1b1..61086ea3cc6b 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1144,7 +1144,7 @@ static void mtdchar_notify_remove(struct mtd_info *mtd)
 
         if (mtd_ino) {
                 /* Destroy the inode if it exists */
-                mtd_ino->i_nlink = 0;
+                clear_nlink(mtd_ino);
                 iput(mtd_ino);
         }
 }
diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c
index f3c6060c96b8..7a1955583b7d 100644
--- a/drivers/staging/pohmelfs/inode.c
+++ b/drivers/staging/pohmelfs/inode.c
@@ -1197,7 +1197,7 @@ const struct inode_operations pohmelfs_file_inode_operations = {
 void pohmelfs_fill_inode(struct inode *inode, struct netfs_inode_info *info)
 {
         inode->i_mode = info->mode;
-        inode->i_nlink = info->nlink;
+        set_nlink(inode, info->nlink);
         inode->i_uid = info->uid;
         inode->i_gid = info->gid;
         inode->i_blocks = info->blocks;
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index b5a1076aaa6c..879ed8851737 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1138,7 +1138,7 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
         struct v9fs_session_info *v9ses = sb->s_fs_info;
         struct v9fs_inode *v9inode = V9FS_I(inode);
 
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
 
         inode->i_atime.tv_sec = stat->atime;
         inode->i_mtime.tv_sec = stat->mtime;
@@ -1164,7 +1164,7 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
                         /* HARDLINKCOUNT %u */
                         sscanf(ext, "%13s %u", tag_name, &i_nlink);
                         if (!strncmp(tag_name, "HARDLINKCOUNT", 13))
-                                inode->i_nlink = i_nlink;
+                                set_nlink(inode, i_nlink);
                 }
         }
         mode = stat->mode & S_IALLUGO;
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index aded79fcd5cf..0b5745e21946 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -606,7 +606,7 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
                 inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
                 inode->i_uid = stat->st_uid;
                 inode->i_gid = stat->st_gid;
-                inode->i_nlink = stat->st_nlink;
+                set_nlink(inode, stat->st_nlink);
 
                 mode = stat->st_mode & S_IALLUGO;
                 mode |= inode->i_mode & ~S_IALLUGO;
@@ -632,7 +632,7 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
                 if (stat->st_result_mask & P9_STATS_GID)
                         inode->i_gid = stat->st_gid;
                 if (stat->st_result_mask & P9_STATS_NLINK)
-                        inode->i_nlink = stat->st_nlink;
+                        set_nlink(inode, stat->st_nlink);
                 if (stat->st_result_mask & P9_STATS_MODE) {
                         inode->i_mode = stat->st_mode;
                         if ((S_ISBLK(inode->i_mode)) ||
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
index d5250c5aae21..1dab6a174d6a 100644
--- a/fs/adfs/inode.c
+++ b/fs/adfs/inode.c
@@ -247,7 +247,7 @@ adfs_iget(struct super_block *sb, struct object_info *obj)
         inode->i_gid     = ADFS_SB(sb)->s_gid;
         inode->i_ino     = obj->file_id;
         inode->i_size    = obj->size;
-        inode->i_nlink   = 2;
+        set_nlink(inode, 2);
         inode->i_blocks  = (inode->i_size + sb->s_blocksize - 1) >>
                             sb->s_blocksize_bits;
 
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 3a4557e8325c..de37ec842340 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -215,7 +215,7 @@ affs_remove_link(struct dentry *dentry)
                                 break;
                         default:
                                 if (!AFFS_TAIL(sb, bh)->link_chain)
-                                        inode->i_nlink = 1;
+                                        set_nlink(inode, 1);
                         }
                         affs_free_block(sb, link_ino);
                         goto done;
@@ -316,7 +316,7 @@ affs_remove_header(struct dentry *dentry)
         if (inode->i_nlink > 1)
                 retval = affs_remove_link(dentry);
         else
-                inode->i_nlink = 0;
+                clear_nlink(inode);
         affs_unlock_link(inode);
         inode->i_ctime = CURRENT_TIME_SEC;
         mark_inode_dirty(inode);
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 5d828903ac69..88a4b0b50058 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -54,7 +54,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
         prot = be32_to_cpu(tail->protect);
 
         inode->i_size = 0;
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         inode->i_mode = 0;
         AFFS_I(inode)->i_extcnt = 1;
         AFFS_I(inode)->i_ext_last = ~1;
@@ -137,7 +137,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
                                                sbi->s_hashsize + 1;
                 }
                 if (tail->link_chain)
-                        inode->i_nlink = 2;
+                        set_nlink(inode, 2);
                 inode->i_mapping->a_ops = (sbi->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
                 inode->i_op = &affs_file_inode_operations;
                 inode->i_fop = &affs_file_operations;
@@ -304,7 +304,7 @@ affs_new_inode(struct inode *dir)
         inode->i_uid     = current_fsuid();
         inode->i_gid     = current_fsgid();
         inode->i_ino     = block;
-        inode->i_nlink   = 1;
+        set_nlink(inode, 1);
         inode->i_mtime   = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
         atomic_set(&AFFS_I(inode)->i_opencnt, 0);
         AFFS_I(inode)->i_blkcnt = 0;
@@ -387,7 +387,7 @@ affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s3
                 AFFS_TAIL(sb, inode_bh)->link_chain = cpu_to_be32(block);
                 affs_adjust_checksum(inode_bh, block - be32_to_cpu(chain));
                 mark_buffer_dirty_inode(inode_bh, inode);
-                inode->i_nlink = 2;
+                set_nlink(inode, 2);
                 ihold(inode);
         }
         affs_fix_checksum(sb, bh);
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index e3e9efc1fdd8..780a11dc6318 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -277,7 +277,7 @@ affs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata
         inode->i_mapping->a_ops = (AFFS_SB(sb)->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
         error = affs_add_entry(dir, inode, dentry, ST_FILE);
         if (error) {
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 iput(inode);
                 return error;
         }
@@ -305,7 +305,7 @@ affs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
         error = affs_add_entry(dir, inode, dentry, ST_USERDIR);
         if (error) {
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 mark_inode_dirty(inode);
                 iput(inode);
                 return error;
@@ -392,7 +392,7 @@ affs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
         return 0;
 
 err:
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         mark_inode_dirty(inode);
         iput(inode);
         return error;
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 346e3289abd7..2f213d109c21 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -90,7 +90,7 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
                         vnode->vfs_inode.i_uid = status->owner;
                         vnode->vfs_inode.i_gid = status->group;
                         vnode->vfs_inode.i_generation = vnode->fid.unique;
-                        vnode->vfs_inode.i_nlink = status->nlink;
+                        set_nlink(&vnode->vfs_inode, status->nlink);
 
                         mode = vnode->vfs_inode.i_mode;
                         mode &= ~S_IALLUGO;
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 0fdab6e03d87..d890ae3b2ce6 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -67,7 +67,7 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
                 fscache_attr_changed(vnode->cache);
 #endif
 
-        inode->i_nlink          = vnode->status.nlink;
+        set_nlink(inode, vnode->status.nlink);
         inode->i_uid            = vnode->status.owner;
         inode->i_gid            = 0;
         inode->i_size           = vnode->status.size;
@@ -174,7 +174,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
         inode->i_size           = 0;
         inode->i_mode           = S_IFDIR | S_IRUGO | S_IXUGO;
         inode->i_op             = &afs_autocell_inode_operations;
-        inode->i_nlink          = 2;
+        set_nlink(inode, 2);
         inode->i_uid            = 0;
         inode->i_gid            = 0;
         inode->i_ctime.tv_sec   = get_seconds();
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 180fa2425e49..8179f1ab8175 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -342,7 +342,7 @@ struct inode *autofs4_get_inode(struct super_block *sb, mode_t mode)
         inode->i_ino = get_next_ino();
 
         if (S_ISDIR(mode)) {
-                inode->i_nlink = 2;
+                set_nlink(inode, 2);
                 inode->i_op = &autofs4_dir_inode_operations;
                 inode->i_fop = &autofs4_dir_operations;
         } else if (S_ISLNK(mode)) {
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 720d885e8dca..8342ca67abcd 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -357,7 +357,7 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
         inode->i_gid = befs_sb->mount_opts.use_gid ?
             befs_sb->mount_opts.gid : (gid_t) fs32_to_cpu(sb, raw_inode->gid);
 
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
 
         /*
          * BEFS's time is 64 bits, but current VFS is 32 bits...
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index b14cebfd9047..9cc074019479 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -199,7 +199,7 @@ static int bfs_unlink(struct inode *dir, struct dentry *dentry)
                 printf("unlinking non-existent file %s:%lu (nlink=%d)\n",
                                         inode->i_sb->s_id, inode->i_ino,
                                         inode->i_nlink);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
         de->ino = 0;
         mark_buffer_dirty_inode(bh, dir);
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index a8e37f81d097..697af5bf70b3 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -78,7 +78,7 @@ struct inode *bfs_iget(struct super_block *sb, unsigned long ino)
         BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino);
         inode->i_uid =  le32_to_cpu(di->i_uid);
         inode->i_gid =  le32_to_cpu(di->i_gid);
-        inode->i_nlink =  le32_to_cpu(di->i_nlink);
+        set_nlink(inode, le32_to_cpu(di->i_nlink));
         inode->i_size = BFS_FILESIZE(di);
         inode->i_blocks = BFS_FILEBLOCKS(di);
         inode->i_atime.tv_sec =  le32_to_cpu(di->i_atime);
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index ba1a1ae4a18a..1e9edbdeda7e 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -521,7 +521,7 @@ static void kill_node(Node *e)
         write_unlock(&entries_lock);
 
         if (dentry) {
-                dentry->d_inode->i_nlink--;
+                drop_nlink(dentry->d_inode);
                 d_drop(dentry);
                 dput(dentry);
                 simple_release_fs(&bm_mnt, &entry_count);
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index b52c672f4c18..ae4d9cd10961 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1641,7 +1641,7 @@ int btrfs_fill_inode(struct inode *inode, u32 *rdev)
         inode->i_gid = btrfs_stack_inode_gid(inode_item);
         btrfs_i_size_write(inode, btrfs_stack_inode_size(inode_item));
         inode->i_mode = btrfs_stack_inode_mode(inode_item);
-        inode->i_nlink = btrfs_stack_inode_nlink(inode_item);
+        set_nlink(inode, btrfs_stack_inode_nlink(inode_item));
         inode_set_bytes(inode, btrfs_stack_inode_nbytes(inode_item));
         BTRFS_I(inode)->generation = btrfs_stack_inode_generation(inode_item);
         BTRFS_I(inode)->sequence = btrfs_stack_inode_sequence(inode_item);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 07b3ac662e19..07ea91879a91 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1705,7 +1705,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
         sb->s_bdi = &fs_info->bdi;
 
         fs_info->btree_inode->i_ino = BTRFS_BTREE_INODE_OBJECTID;
-        fs_info->btree_inode->i_nlink = 1;
+        set_nlink(fs_info->btree_inode, 1);
         /*
          * we set the i_size on the btree inode to the max possible int.
          * the real end of the address space is determined by all of
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b2d004ad66a0..75686a61bd45 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2534,7 +2534,7 @@ static void btrfs_read_locked_inode(struct inode *inode)
         inode_item = btrfs_item_ptr(leaf, path->slots[0],
                                     struct btrfs_inode_item);
         inode->i_mode = btrfs_inode_mode(leaf, inode_item);
-        inode->i_nlink = btrfs_inode_nlink(leaf, inode_item);
+        set_nlink(inode, btrfs_inode_nlink(leaf, inode_item));
         inode->i_uid = btrfs_inode_uid(leaf, inode_item);
         inode->i_gid = btrfs_inode_gid(leaf, inode_item);
         btrfs_i_size_write(inode, btrfs_inode_size(leaf, inode_item));
@@ -6728,7 +6728,7 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
         inode->i_op = &btrfs_dir_inode_operations;
         inode->i_fop = &btrfs_dir_file_operations;
 
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         btrfs_i_size_write(inode, 0);
 
         err = btrfs_update_inode(trans, new_root, inode);
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 786639fca067..0618aa39740b 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1030,7 +1030,7 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
         }
         btrfs_release_path(path);
         if (nlink != inode->i_nlink) {
-                inode->i_nlink = nlink;
+                set_nlink(inode, nlink);
                 btrfs_update_inode(trans, root, inode);
         }
         BTRFS_I(inode)->index_cnt = (u64)-1;
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index b8731bf3ef1f..15b21e35078a 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2363,7 +2363,7 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
         }
 
         if ((issued & CEPH_CAP_LINK_EXCL) == 0)
-                inode->i_nlink = le32_to_cpu(grant->nlink);
+                set_nlink(inode, le32_to_cpu(grant->nlink));
 
         if ((issued & CEPH_CAP_XATTR_EXCL) == 0 && grant->xattr_len) {
                 int len = le32_to_cpu(grant->xattr_len);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 5dde7d51dc11..1616a0d37cbd 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -618,7 +618,7 @@ static int fill_inode(struct inode *inode,
         }
 
         if ((issued & CEPH_CAP_LINK_EXCL) == 0)
-                inode->i_nlink = le32_to_cpu(info->nlink);
+                set_nlink(inode, le32_to_cpu(info->nlink));
 
         /* be careful with mtime, atime, size */
         ceph_decode_timespec(&atime, &info->atime);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 2c50bd2f65d1..e851d5b8931e 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -132,7 +132,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
         inode->i_mtime = fattr->cf_mtime;
         inode->i_ctime = fattr->cf_ctime;
         inode->i_rdev = fattr->cf_rdev;
-        inode->i_nlink = fattr->cf_nlink;
+        set_nlink(inode, fattr->cf_nlink);
         inode->i_uid = fattr->cf_uid;
         inode->i_gid = fattr->cf_gid;
 
@@ -905,7 +905,7 @@ struct inode *cifs_root_iget(struct super_block *sb)
         if (rc && tcon->ipc) {
                 cFYI(1, "ipc connection - fake read inode");
                 inode->i_mode |= S_IFDIR;
-                inode->i_nlink = 2;
+                set_nlink(inode, 2);
                 inode->i_op = &cifs_ipc_inode_ops;
                 inode->i_fop = &simple_dir_operations;
                 inode->i_uid = cifs_sb->mnt_uid;
@@ -1367,7 +1367,7 @@ mkdir_get_info:
                  /* setting nlink not necessary except in cases where we
                   * failed to get it from the server or was set bogus */
                 if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
-                                direntry->d_inode->i_nlink = 2;
+                        set_nlink(direntry->d_inode, 2);
 
                 mode &= ~current_umask();
                 /* must turn on setgid bit if parent dir has it */
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 8693b5d0e180..6b0e06434391 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -433,7 +433,7 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
         if (old_file->d_inode) {
                 cifsInode = CIFS_I(old_file->d_inode);
                 if (rc == 0) {
-                        old_file->d_inode->i_nlink++;
+                        inc_nlink(old_file->d_inode);
 /* BB should we make this contingent on superblock flag NOATIME? */
 /*                      old_file->d_inode->i_ctime = CURRENT_TIME;*/
                         /* parent dir timestamps will update from srv
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
index 2bdbcc11b373..854ace712685 100644
--- a/fs/coda/coda_linux.c
+++ b/fs/coda/coda_linux.c
@@ -104,7 +104,7 @@ void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
         if (attr->va_gid != -1)
                 inode->i_gid = (gid_t) attr->va_gid;
         if (attr->va_nlink != -1)
-                inode->i_nlink = attr->va_nlink;
+                set_nlink(inode, attr->va_nlink);
         if (attr->va_size != -1)
                 inode->i_size = attr->va_size;
         if (attr->va_size != -1)
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 0239433f50cb..28e7e135cfab 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -340,7 +340,7 @@ static int coda_rmdir(struct inode *dir, struct dentry *de)
         if (!error) {
                 /* VFS may delete the child */
                 if (de->d_inode)
-                    de->d_inode->i_nlink = 0;
+                        clear_nlink(de->d_inode);
 
                 /* fix the link count of the parent */
                 coda_dir_drop_nlink(dir);
diff --git a/fs/dcache.c b/fs/dcache.c
index a88948b8bd17..274f13e2f094 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -225,7 +225,7 @@ static void dentry_unlink_inode(struct dentry * dentry)
 }
 
 /*
- * dentry_lru_(add|del|move_tail) must be called with d_lock held.
+ * dentry_lru_(add|del|prune|move_tail) must be called with d_lock held.
  */
 static void dentry_lru_add(struct dentry *dentry)
 {
@@ -245,6 +245,9 @@ static void __dentry_lru_del(struct dentry *dentry)
         dentry_stat.nr_unused--;
 }
 
+/*
+ * Remove a dentry with references from the LRU.
+ */
 static void dentry_lru_del(struct dentry *dentry)
 {
         if (!list_empty(&dentry->d_lru)) {
@@ -254,6 +257,23 @@ static void dentry_lru_del(struct dentry *dentry)
         }
 }
 
+/*
+ * Remove a dentry that is unreferenced and about to be pruned
+ * (unhashed and destroyed) from the LRU, and inform the file system.
+ * This wrapper should be called _prior_ to unhashing a victim dentry.
+ */
+static void dentry_lru_prune(struct dentry *dentry)
+{
+        if (!list_empty(&dentry->d_lru)) {
+                if (dentry->d_flags & DCACHE_OP_PRUNE)
+                        dentry->d_op->d_prune(dentry);
+
+                spin_lock(&dcache_lru_lock);
+                __dentry_lru_del(dentry);
+                spin_unlock(&dcache_lru_lock);
+        }
+}
+
 static void dentry_lru_move_tail(struct dentry *dentry)
 {
         spin_lock(&dcache_lru_lock);
@@ -403,8 +423,12 @@ relock:
 
         if (ref)
                 dentry->d_count--;
-        /* if dentry was on the d_lru list delete it from there */
-        dentry_lru_del(dentry);
+        /*
+         * if dentry was on the d_lru list delete it from there.
+         * inform the fs via d_prune that this dentry is about to be
+         * unhashed and destroyed.
+         */
+        dentry_lru_prune(dentry);
         /* if it was on the hash then remove it */
         __d_drop(dentry);
         return d_kill(dentry, parent);
@@ -854,8 +878,12 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry)
                 do {
                         struct inode *inode;
 
-                        /* detach from the system */
-                        dentry_lru_del(dentry);
+                        /*
+                         * remove the dentry from the lru, and inform
+                         * the fs that this dentry is about to be
+                         * unhashed and destroyed.
+                         */
+                        dentry_lru_prune(dentry);
                         __d_shrink(dentry);
 
                         if (dentry->d_count != 0) {
@@ -1283,6 +1311,8 @@ void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op)
                 dentry->d_flags |= DCACHE_OP_REVALIDATE;
         if (op->d_delete)
                 dentry->d_flags |= DCACHE_OP_DELETE;
+        if (op->d_prune)
+                dentry->d_flags |= DCACHE_OP_PRUNE;
 
 }
 EXPORT_SYMBOL(d_set_d_op);
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 2f27e578d466..d5d5297efe97 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -307,7 +307,7 @@ devpts_fill_super(struct super_block *s, void *data, int silent)
         inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
         inode->i_op = &simple_dir_inode_operations;
         inode->i_fop = &simple_dir_operations;
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
 
         s->s_root = d_alloc_root(inode);
         if (s->s_root)
@@ -549,7 +549,7 @@ void devpts_pty_kill(struct tty_struct *tty)
 
         dentry = d_find_alias(inode);
 
-        inode->i_nlink--;
+        drop_nlink(inode);
         d_delete(dentry);
         dput(dentry);   /* d_alloc_name() in devpts_pty_new() */
         dput(dentry);           /* d_find_alias above */
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 11f8582d7218..a36d327f1521 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -474,8 +474,8 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,
                 goto out_lock;
         fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
         fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
-        old_dentry->d_inode->i_nlink =
-                ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink;
+        set_nlink(old_dentry->d_inode,
+                  ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink);
         i_size_write(new_dentry->d_inode, file_size_save);
 out_lock:
         unlock_dir(lower_dir_dentry);
@@ -499,8 +499,8 @@ static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry)
                 goto out_unlock;
         }
         fsstack_copy_attr_times(dir, lower_dir_inode);
-        dentry->d_inode->i_nlink =
-                ecryptfs_inode_to_lower(dentry->d_inode)->i_nlink;
+        set_nlink(dentry->d_inode,
+                  ecryptfs_inode_to_lower(dentry->d_inode)->i_nlink);
         dentry->d_inode->i_ctime = dir->i_ctime;
         d_drop(dentry);
 out_unlock:
@@ -565,7 +565,7 @@ static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 goto out;
         fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
         fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
-        dir->i_nlink = lower_dir_dentry->d_inode->i_nlink;
+        set_nlink(dir, lower_dir_dentry->d_inode->i_nlink);
 out:
         unlock_dir(lower_dir_dentry);
         if (!dentry->d_inode)
@@ -588,7 +588,7 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)
         if (!rc && dentry->d_inode)
                 clear_nlink(dentry->d_inode);
         fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
-        dir->i_nlink = lower_dir_dentry->d_inode->i_nlink;
+        set_nlink(dir, lower_dir_dentry->d_inode->i_nlink);
         unlock_dir(lower_dir_dentry);
         if (!rc)
                 d_drop(dentry);
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
index 9c13412e6c99..bc84f365d75c 100644
--- a/fs/efs/inode.c
+++ b/fs/efs/inode.c
@@ -96,7 +96,7 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino)
         efs_inode = (struct efs_dinode *) (bh->b_data + offset);
     
         inode->i_mode  = be16_to_cpu(efs_inode->di_mode);
-        inode->i_nlink = be16_to_cpu(efs_inode->di_nlink);
+        set_nlink(inode, be16_to_cpu(efs_inode->di_nlink));
         inode->i_uid   = (uid_t)be16_to_cpu(efs_inode->di_uid);
         inode->i_gid   = (gid_t)be16_to_cpu(efs_inode->di_gid);
         inode->i_size  = be32_to_cpu(efs_inode->di_size);
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 3e5f3a6be90a..f6dbf7768ce6 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -1165,7 +1165,7 @@ struct inode *exofs_iget(struct super_block *sb, unsigned long ino)
         inode->i_mode = le16_to_cpu(fcb.i_mode);
         inode->i_uid = le32_to_cpu(fcb.i_uid);
         inode->i_gid = le32_to_cpu(fcb.i_gid);
-        inode->i_nlink = le16_to_cpu(fcb.i_links_count);
+        set_nlink(inode, le16_to_cpu(fcb.i_links_count));
         inode->i_ctime.tv_sec = (signed)le32_to_cpu(fcb.i_ctime);
         inode->i_atime.tv_sec = (signed)le32_to_cpu(fcb.i_atime);
         inode->i_mtime.tv_sec = (signed)le32_to_cpu(fcb.i_mtime);
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index ee9ed31948e1..c4e81dfb74ba 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -601,7 +601,7 @@ fail_free_drop:
 fail_drop:
         dquot_drop(inode);
         inode->i_flags |= S_NOQUOTA;
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         unlock_new_inode(inode);
         iput(inode);
         return ERR_PTR(err);
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index a8a58f63f07c..91a6945af6d8 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -1321,7 +1321,7 @@ struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
                 inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
                 inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
         }
-        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+        set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
         inode->i_size = le32_to_cpu(raw_inode->i_size);
         inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
         inode->i_ctime.tv_sec = (signed)le32_to_cpu(raw_inode->i_ctime);
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 635bd8ce6d59..5c866e06e7ab 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -582,7 +582,7 @@ fail_free_drop:
 fail_drop:
         dquot_drop(inode);
         inode->i_flags |= S_NOQUOTA;
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         unlock_new_inode(inode);
         iput(inode);
         brelse(bitmap_bh);
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 12661e1deedd..85fe655fe3e0 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -2899,7 +2899,7 @@ struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
                 inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
                 inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
         }
-        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+        set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
         inode->i_size = le32_to_cpu(raw_inode->i_size);
         inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
         inode->i_ctime.tv_sec = (signed)le32_to_cpu(raw_inode->i_ctime);
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 0629e09f6511..642dc6d66dfd 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1821,7 +1821,7 @@ retry:
         de->name_len = 2;
         strcpy (de->name, "..");
         ext3_set_de_type(dir->i_sb, de, S_IFDIR);
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         BUFFER_TRACE(dir_block, "call ext3_journal_dirty_metadata");
         err = ext3_journal_dirty_metadata(handle, dir_block);
         if (err)
@@ -1833,7 +1833,7 @@ retry:
 
         if (err) {
 out_clear_inode:
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 unlock_new_inode(inode);
                 ext3_mark_inode_dirty(handle, inode);
                 iput (inode);
@@ -2170,7 +2170,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
                 ext3_warning (inode->i_sb, "ext3_unlink",
                               "Deleting nonexistent file (%lu), %d",
                               inode->i_ino, inode->i_nlink);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
         retval = ext3_delete_entry(handle, dir, de, bh);
         if (retval)
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 612bec255c6c..00beb4f9cc4f 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -948,7 +948,7 @@ fail_free_drop:
 fail_drop:
         dquot_drop(inode);
         inode->i_flags |= S_NOQUOTA;
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         unlock_new_inode(inode);
         iput(inode);
         brelse(inode_bitmap_bh);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f2419a15b81a..cc5a6da030a1 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3791,7 +3791,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
                 inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
                 inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
         }
-        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+        set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
 
         ext4_clear_state_flags(ei);     /* Only relevant on 32-bit archs */
         ei->i_dir_start_lookup = 0;
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index f729377bf043..16ac228dbec6 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -481,7 +481,7 @@ int ext4_ext_migrate(struct inode *inode)
          * Set the i_nlink to zero so it will be deleted later
          * when we drop inode reference.
          */
-        tmp_inode->i_nlink = 0;
+        clear_nlink(tmp_inode);
 
         ext4_ext_tree_init(handle, tmp_inode);
         ext4_orphan_add(handle, tmp_inode);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 2a75eed2ef06..aa4c782c9dd7 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1694,7 +1694,7 @@ static void ext4_inc_count(handle_t *handle, struct inode *inode)
         if (is_dx(inode) && inode->i_nlink > 1) {
                 /* limit is 16-bit i_links_count */
                 if (inode->i_nlink >= EXT4_LINK_MAX || inode->i_nlink == 2) {
-                        inode->i_nlink = 1;
+                        set_nlink(inode, 1);
                         EXT4_SET_RO_COMPAT_FEATURE(inode->i_sb,
                                               EXT4_FEATURE_RO_COMPAT_DIR_NLINK);
                 }
@@ -1860,7 +1860,7 @@ retry:
         de->name_len = 2;
         strcpy(de->name, "..");
         ext4_set_de_type(dir->i_sb, de, S_IFDIR);
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         BUFFER_TRACE(dir_block, "call ext4_handle_dirty_metadata");
         err = ext4_handle_dirty_metadata(handle, inode, dir_block);
         if (err)
@@ -2213,7 +2213,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
                 ext4_warning(inode->i_sb,
                              "Deleting nonexistent file (%lu), %d",
                              inode->i_ino, inode->i_nlink);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
         retval = ext4_delete_entry(handle, dir, de, bh);
         if (retval)
@@ -2538,7 +2538,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
                 if (new_inode) {
                         /* checked empty_dir above, can't have another parent,
                          * ext4_dec_count() won't work for many-linked dirs */
-                        new_inode->i_nlink = 0;
+                        clear_nlink(new_inode);
                 } else {
                         ext4_inc_count(handle, new_dir);
                         ext4_update_dx_flag(new_dir);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 1726d7303047..808cac7edcfb 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -379,7 +379,7 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
                         return error;
                 MSDOS_I(inode)->mmu_private = inode->i_size;
 
-                inode->i_nlink = fat_subdirs(inode);
+                set_nlink(inode, fat_subdirs(inode));
         } else { /* not a directory */
                 inode->i_generation |= 1;
                 inode->i_mode = fat_make_mode(sbi, de->attr,
@@ -1233,7 +1233,7 @@ static int fat_read_root(struct inode *inode)
         fat_save_attrs(inode, ATTR_DIR);
         inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = 0;
         inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = 0;
-        inode->i_nlink = fat_subdirs(inode)+2;
+        set_nlink(inode, fat_subdirs(inode)+2);
 
         return 0;
 }
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 66e83b845455..216b419f30e2 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -387,7 +387,7 @@ static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 /* the directory was completed, just return a error */
                 goto out;
         }
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
         /* timestamp is already written, so mark_inode_dirty() is unneeded. */
 
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index bb3f29c3557b..a87a65663c25 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -900,7 +900,7 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 goto out;
         }
         inode->i_version++;
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
         /* timestamp is already written, so mark_inode_dirty() is unneeded. */
 
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index 1a4311437a8b..7b2af5abe2fa 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -227,7 +227,7 @@ vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip)
         ip->i_uid = (uid_t)vip->vii_uid;
         ip->i_gid = (gid_t)vip->vii_gid;
 
-        ip->i_nlink = vip->vii_nlink;
+        set_nlink(ip, vip->vii_nlink);
         ip->i_size = vip->vii_size;
 
         ip->i_atime.tv_sec = vip->vii_atime;
diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index 85542a7daf40..42593c587d48 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -231,7 +231,7 @@ static struct dentry *fuse_ctl_add_dentry(struct dentry *parent,
         if (iop)
                 inode->i_op = iop;
         inode->i_fop = fop;
-        inode->i_nlink = nlink;
+        set_nlink(inode, nlink);
         inode->i_private = fc;
         d_add(dentry, inode);
         return dentry;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index add96f6ffda5..3e6d72756479 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -151,7 +151,7 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
 
         inode->i_ino     = attr->ino;
         inode->i_mode    = (inode->i_mode & S_IFMT) | (attr->mode & 07777);
-        inode->i_nlink   = attr->nlink;
+        set_nlink(inode, attr->nlink);
         inode->i_uid     = attr->uid;
         inode->i_gid     = attr->gid;
         inode->i_blocks  = attr->blocks;
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 78418b4fa857..1656df7aacd2 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -299,7 +299,7 @@ static void gfs2_set_nlink(struct inode *inode, u32 nlink)
                 if (nlink == 0)
                         clear_nlink(inode);
                 else
-                        inode->i_nlink = nlink;
+                        set_nlink(inode, nlink);
         }
 }
 
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index b4d70b13be92..bce4eef91a06 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -198,7 +198,7 @@ static int hfs_create(struct inode *dir, struct dentry *dentry, int mode,
 
         res = hfs_cat_create(inode->i_ino, dir, &dentry->d_name, inode);
         if (res) {
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 hfs_delete_inode(inode);
                 iput(inode);
                 return res;
@@ -227,7 +227,7 @@ static int hfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
         res = hfs_cat_create(inode->i_ino, dir, &dentry->d_name, inode);
         if (res) {
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 hfs_delete_inode(inode);
                 iput(inode);
                 return res;
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 96a1b625fc74..a1a9fdcd2a00 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -183,7 +183,7 @@ struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
         inode->i_mode = mode;
         inode->i_uid = current_fsuid();
         inode->i_gid = current_fsgid();
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
         HFS_I(inode)->flags = 0;
         HFS_I(inode)->rsrc_inode = NULL;
@@ -313,7 +313,7 @@ static int hfs_read_inode(struct inode *inode, void *data)
         /* Initialize the inode */
         inode->i_uid = hsb->s_uid;
         inode->i_gid = hsb->s_gid;
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
 
         if (idata->key)
                 HFS_I(inode)->cat_key = *idata->key;
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 25b2443a004c..4536cd3f15ae 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -415,7 +415,7 @@ static int hfsplus_symlink(struct inode *dir, struct dentry *dentry,
         goto out;
 
 out_err:
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         hfsplus_delete_inode(inode);
         iput(inode);
 out:
@@ -440,7 +440,7 @@ static int hfsplus_mknod(struct inode *dir, struct dentry *dentry,
 
         res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
         if (res) {
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 hfsplus_delete_inode(inode);
                 iput(inode);
                 goto out;
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 4cc1e3a36ec7..40e1413be4cf 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -391,7 +391,7 @@ struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
         inode->i_mode = mode;
         inode->i_uid = current_fsuid();
         inode->i_gid = current_fsgid();
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 
         hip = HFSPLUS_I(inode);
@@ -512,7 +512,7 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
                                         sizeof(struct hfsplus_cat_folder));
                 hfsplus_get_perms(inode, &folder->permissions, 1);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
                 inode->i_size = 2 + be32_to_cpu(folder->valence);
                 inode->i_atime = hfsp_mt2ut(folder->access_date);
                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
@@ -532,11 +532,11 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ?
                                         &file->rsrc_fork : &file->data_fork);
                 hfsplus_get_perms(inode, &file->permissions, 0);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
                 if (S_ISREG(inode->i_mode)) {
                         if (file->permissions.dev)
-                                inode->i_nlink =
-                                        be32_to_cpu(file->permissions.dev);
+                                set_nlink(inode,
+                                          be32_to_cpu(file->permissions.dev));
                         inode->i_op = &hfsplus_file_inode_operations;
                         inode->i_fop = &hfsplus_file_operations;
                         inode->i_mapping->a_ops = &hfsplus_aops;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 0d22afdd4611..2f72da5ae686 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -541,7 +541,7 @@ static int read_name(struct inode *ino, char *name)
 
         ino->i_ino = st.ino;
         ino->i_mode = st.mode;
-        ino->i_nlink = st.nlink;
+        set_nlink(ino, st.nlink);
         ino->i_uid = st.uid;
         ino->i_gid = st.gid;
         ino->i_atime = st.atime;
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 96a8ed91cedd..2fa0089a02a8 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -247,7 +247,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name
                         result->i_mode &= ~0111;
                         result->i_op = &hpfs_file_iops;
                         result->i_fop = &hpfs_file_ops;
-                        result->i_nlink = 1;
+                        set_nlink(result, 1);
                 }
                 unlock_new_inode(result);
         }
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index 338cd8368451..3b2cec29972b 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -53,7 +53,7 @@ void hpfs_read_inode(struct inode *i)
                 i->i_mode &= ~0111;
                 i->i_op = &hpfs_file_iops;
                 i->i_fop = &hpfs_file_ops;
-                i->i_nlink = 0;*/
+                clear_nlink(i);*/
                 make_bad_inode(i);
                 return;
         }
@@ -77,7 +77,7 @@ void hpfs_read_inode(struct inode *i)
                         i->i_mode = S_IFLNK | 0777;
                         i->i_op = &page_symlink_inode_operations;
                         i->i_data.a_ops = &hpfs_symlink_aops;
-                        i->i_nlink = 1;
+                        set_nlink(i, 1);
                         i->i_size = ea_size;
                         i->i_blocks = 1;
                         brelse(bh);
@@ -101,7 +101,7 @@ void hpfs_read_inode(struct inode *i)
                         }
                         if (S_ISBLK(mode) || S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) {
                                 brelse(bh);
-                                i->i_nlink = 1;
+                                set_nlink(i, 1);
                                 i->i_size = 0;
                                 i->i_blocks = 1;
                                 init_special_inode(i, mode,
@@ -125,13 +125,13 @@ void hpfs_read_inode(struct inode *i)
                 hpfs_count_dnodes(i->i_sb, hpfs_inode->i_dno, &n_dnodes, &n_subdirs, NULL);
                 i->i_blocks = 4 * n_dnodes;
                 i->i_size = 2048 * n_dnodes;
-                i->i_nlink = 2 + n_subdirs;
+                set_nlink(i, 2 + n_subdirs);
         } else {
                 i->i_mode |= S_IFREG;
                 if (!hpfs_inode->i_ea_mode) i->i_mode &= ~0111;
                 i->i_op = &hpfs_file_iops;
                 i->i_fop = &hpfs_file_ops;
-                i->i_nlink = 1;
+                set_nlink(i, 1);
                 i->i_size = le32_to_cpu(fnode->file_size);
                 i->i_blocks = ((i->i_size + 511) >> 9) + 1;
                 i->i_data.a_ops = &hpfs_aops;
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 2df69e2f07cf..ea91fcb0ef9b 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -56,7 +56,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         result->i_fop = &hpfs_dir_ops;
         result->i_blocks = 4;
         result->i_size = 2048;
-        result->i_nlink = 2;
+        set_nlink(result, 2);
         if (dee.read_only)
                 result->i_mode &= ~0222;
 
@@ -150,7 +150,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc
         result->i_mode &= ~0111;
         result->i_op = &hpfs_file_iops;
         result->i_fop = &hpfs_file_ops;
-        result->i_nlink = 1;
+        set_nlink(result, 1);
         hpfs_i(result)->i_parent_dir = dir->i_ino;
         result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(dee.creation_date));
         result->i_ctime.tv_nsec = 0;
@@ -242,7 +242,7 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t
         hpfs_i(result)->i_ea_size = 0;
         result->i_uid = current_fsuid();
         result->i_gid = current_fsgid();
-        result->i_nlink = 1;
+        set_nlink(result, 1);
         result->i_size = 0;
         result->i_blocks = 1;
         init_special_inode(result, mode, rdev);
@@ -318,7 +318,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy
         result->i_uid = current_fsuid();
         result->i_gid = current_fsgid();
         result->i_blocks = 1;
-        result->i_nlink = 1;
+        set_nlink(result, 1);
         result->i_size = strlen(symlink);
         result->i_op = &page_symlink_inode_operations;
         result->i_data.a_ops = &hpfs_symlink_aops;
diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index 970ea987b3f6..f590b1160c6c 100644
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -702,7 +702,7 @@ static struct inode *get_inode(struct super_block *sb, struct dentry *dentry)
         inode->i_ctime = proc_ino->i_ctime;
         inode->i_ino = proc_ino->i_ino;
         inode->i_mode = proc_ino->i_mode;
-        inode->i_nlink = proc_ino->i_nlink;
+        set_nlink(inode, proc_ino->i_nlink);
         inode->i_size = proc_ino->i_size;
         inode->i_blocks = proc_ino->i_blocks;
 
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index ec889538e5a6..0be5a78598d0 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -970,7 +970,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size,
 
         d_instantiate(path.dentry, inode);
         inode->i_size = size;
-        inode->i_nlink = 0;
+        clear_nlink(inode);
 
         error = -ENFILE;
         file = alloc_file(&path, FMODE_WRITE | FMODE_READ,
diff --git a/fs/inode.c b/fs/inode.c
index ecbb68dc7e2a..ee4e66b998f4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -142,7 +142,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
         atomic_set(&inode->i_count, 1);
         inode->i_op = &empty_iops;
         inode->i_fop = &empty_fops;
-        inode->i_nlink = 1;
+        inode->__i_nlink = 1;
         inode->i_opflags = 0;
         inode->i_uid = 0;
         inode->i_gid = 0;
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index a5d03672d04e..562adabef985 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -1319,7 +1319,7 @@ static int isofs_read_inode(struct inode *inode)
                         inode->i_mode = S_IFDIR | sbi->s_dmode;
                 else
                         inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
-                inode->i_nlink = 1;     /*
+                set_nlink(inode, 1);    /*
                                          * Set to 1.  We know there are 2, but
                                          * the find utility tries to optimize
                                          * if it is 2, and it screws up.  It is
@@ -1337,7 +1337,7 @@ static int isofs_read_inode(struct inode *inode)
                          */
                         inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
                 }
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
         inode->i_uid = sbi->s_uid;
         inode->i_gid = sbi->s_gid;
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 1fbc7de88f50..70e79d0c756a 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -363,7 +363,7 @@ repeat:
                         break;
                 case SIG('P', 'X'):
                         inode->i_mode = isonum_733(rr->u.PX.mode);
-                        inode->i_nlink = isonum_733(rr->u.PX.n_links);
+                        set_nlink(inode, isonum_733(rr->u.PX.n_links));
                         inode->i_uid = isonum_733(rr->u.PX.uid);
                         inode->i_gid = isonum_733(rr->u.PX.gid);
                         break;
@@ -496,7 +496,7 @@ repeat:
                                 goto out;
                         }
                         inode->i_mode = reloc->i_mode;
-                        inode->i_nlink = reloc->i_nlink;
+                        set_nlink(inode, reloc->i_nlink);
                         inode->i_uid = reloc->i_uid;
                         inode->i_gid = reloc->i_gid;
                         inode->i_rdev = reloc->i_rdev;
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 9659b7c00468..be6169bd8acd 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -245,7 +245,7 @@ static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
         ret = jffs2_do_unlink(c, dir_f, dentry->d_name.name,
                               dentry->d_name.len, dead_f, now);
         if (dead_f->inocache)
-                dentry->d_inode->i_nlink = dead_f->inocache->pino_nlink;
+                set_nlink(dentry->d_inode, dead_f->inocache->pino_nlink);
         if (!ret)
                 dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
         return ret;
@@ -278,7 +278,7 @@ static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct de
 
         if (!ret) {
                 mutex_lock(&f->sem);
-                old_dentry->d_inode->i_nlink = ++f->inocache->pino_nlink;
+                set_nlink(old_dentry->d_inode, ++f->inocache->pino_nlink);
                 mutex_unlock(&f->sem);
                 d_instantiate(dentry, old_dentry->d_inode);
                 dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
@@ -497,7 +497,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
         f = JFFS2_INODE_INFO(inode);
 
         /* Directories get nlink 2 at start */
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         /* but ic->pino_nlink is the parent ino# */
         f->inocache->pino_nlink = dir_i->i_ino;
 
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index bbcb9755dd2b..7286e44ac665 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -278,7 +278,7 @@ struct inode *jffs2_iget(struct super_block *sb, unsigned long ino)
         inode->i_mtime = ITIME(je32_to_cpu(latest_node.mtime));
         inode->i_ctime = ITIME(je32_to_cpu(latest_node.ctime));
 
-        inode->i_nlink = f->inocache->pino_nlink;
+        set_nlink(inode, f->inocache->pino_nlink);
 
         inode->i_blocks = (inode->i_size + 511) >> 9;
 
@@ -291,7 +291,7 @@ struct inode *jffs2_iget(struct super_block *sb, unsigned long ino)
         case S_IFDIR:
         {
                 struct jffs2_full_dirent *fd;
-                inode->i_nlink = 2; /* parent and '.' */
+                set_nlink(inode, 2); /* parent and '.' */
 
                 for (fd=f->dents; fd; fd = fd->next) {
                         if (fd->type == DT_DIR && fd->ino)
@@ -453,7 +453,7 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r
                 iput(inode);
                 return ERR_PTR(ret);
         }
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         inode->i_ino = je32_to_cpu(ri->ino);
         inode->i_mode = jemode_to_cpu(ri->mode);
         inode->i_gid = je16_to_cpu(ri->gid);
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index b78b2f978f04..1b6f15f191b3 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -457,7 +457,7 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
         /* read the page of fixed disk inode (AIT) in raw mode */
         mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1);
         if (mp == NULL) {
-                ip->i_nlink = 1;        /* Don't want iput() deleting it */
+                set_nlink(ip, 1);       /* Don't want iput() deleting it */
                 iput(ip);
                 return (NULL);
         }
@@ -469,7 +469,7 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
         /* copy on-disk inode to in-memory inode */
         if ((copy_from_dinode(dp, ip)) != 0) {
                 /* handle bad return by returning NULL for ip */
-                ip->i_nlink = 1;        /* Don't want iput() deleting it */
+                set_nlink(ip, 1);       /* Don't want iput() deleting it */
                 iput(ip);
                 /* release the page */
                 release_metapage(mp);
@@ -3076,7 +3076,7 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip)
                                 ip->i_mode |= 0001;
                 }
         }
-        ip->i_nlink = le32_to_cpu(dip->di_nlink);
+        set_nlink(ip, le32_to_cpu(dip->di_nlink));
 
         jfs_ip->saved_uid = le32_to_cpu(dip->di_uid);
         if (sbi->uid == -1)
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 2686531e235a..c1a3e603279c 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -157,7 +157,7 @@ fail_drop:
         dquot_drop(inode);
         inode->i_flags |= S_NOQUOTA;
 fail_unlock:
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         unlock_new_inode(inode);
 fail_put:
         iput(inode);
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index e17545e15664..a112ad96e474 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -172,7 +172,7 @@ static int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
         mutex_unlock(&JFS_IP(dip)->commit_mutex);
         if (rc) {
                 free_ea_wmap(ip);
-                ip->i_nlink = 0;
+                clear_nlink(ip);
                 unlock_new_inode(ip);
                 iput(ip);
         } else {
@@ -292,7 +292,7 @@ static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
                 goto out3;
         }
 
-        ip->i_nlink = 2;        /* for '.' */
+        set_nlink(ip, 2);       /* for '.' */
         ip->i_op = &jfs_dir_inode_operations;
         ip->i_fop = &jfs_dir_operations;
 
@@ -311,7 +311,7 @@ static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
         mutex_unlock(&JFS_IP(dip)->commit_mutex);
         if (rc) {
                 free_ea_wmap(ip);
-                ip->i_nlink = 0;
+                clear_nlink(ip);
                 unlock_new_inode(ip);
                 iput(ip);
         } else {
@@ -844,7 +844,7 @@ static int jfs_link(struct dentry *old_dentry,
         rc = txCommit(tid, 2, &iplist[0], 0);
 
         if (rc) {
-                ip->i_nlink--; /* never instantiated */
+                drop_nlink(ip); /* never instantiated */
                 iput(ip);
         } else
                 d_instantiate(dentry, ip);
@@ -1048,7 +1048,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
         mutex_unlock(&JFS_IP(dip)->commit_mutex);
         if (rc) {
                 free_ea_wmap(ip);
-                ip->i_nlink = 0;
+                clear_nlink(ip);
                 unlock_new_inode(ip);
                 iput(ip);
         } else {
@@ -1433,7 +1433,7 @@ static int jfs_mknod(struct inode *dir, struct dentry *dentry,
         mutex_unlock(&JFS_IP(dir)->commit_mutex);
         if (rc) {
                 free_ea_wmap(ip);
-                ip->i_nlink = 0;
+                clear_nlink(ip);
                 unlock_new_inode(ip);
                 iput(ip);
         } else {
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 06c8a67cbe76..a44eff076c17 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -485,7 +485,6 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
                 goto out_unload;
         }
         inode->i_ino = 0;
-        inode->i_nlink = 1;
         inode->i_size = sb->s_bdev->bd_inode->i_size;
         inode->i_mapping->a_ops = &jfs_metapage_aops;
         insert_inode_hash(inode);
diff --git a/fs/libfs.c b/fs/libfs.c
index c18e9a1235b6..f6d411eef1e7 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -490,7 +490,7 @@ int simple_fill_super(struct super_block *s, unsigned long magic,
         inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
         inode->i_op = &simple_dir_inode_operations;
         inode->i_fop = &simple_dir_operations;
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         root = d_alloc_root(inode);
         if (!root) {
                 iput(inode);
@@ -510,8 +510,10 @@ int simple_fill_super(struct super_block *s, unsigned long magic,
                 if (!dentry)
                         goto out;
                 inode = new_inode(s);
-                if (!inode)
+                if (!inode) {
+                        dput(dentry);
                         goto out;
+                }
                 inode->i_mode = S_IFREG | files->mode;
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
                 inode->i_fop = files->ops;
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index b3ff3d894165..b7d7f67cee5a 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -197,7 +197,7 @@ static int logfs_remove_inode(struct inode *inode)
 {
         int ret;
 
-        inode->i_nlink--;
+        drop_nlink(inode);
         ret = write_inode(inode);
         LOGFS_BUG_ON(ret, inode->i_sb);
         return ret;
@@ -433,7 +433,7 @@ static int __logfs_create(struct inode *dir, struct dentry *dentry,
 
         ta = kzalloc(sizeof(*ta), GFP_KERNEL);
         if (!ta) {
-                inode->i_nlink--;
+                drop_nlink(inode);
                 iput(inode);
                 return -ENOMEM;
         }
@@ -456,7 +456,7 @@ static int __logfs_create(struct inode *dir, struct dentry *dentry,
                 abort_transaction(inode, ta);
                 li->li_flags |= LOGFS_IF_STILLBORN;
                 /* FIXME: truncate symlink */
-                inode->i_nlink--;
+                drop_nlink(inode);
                 iput(inode);
                 goto out;
         }
@@ -563,7 +563,7 @@ static int logfs_link(struct dentry *old_dentry, struct inode *dir,
 
         inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
         ihold(inode);
-        inode->i_nlink++;
+        inc_nlink(inode);
         mark_inode_dirty_sync(inode);
 
         return __logfs_create(dir, dentry, inode, NULL, 0);
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index edfea7a3a747..7e441ad5f792 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -93,7 +93,7 @@ static struct inode *__logfs_iget(struct super_block *sb, ino_t ino)
                 /* inode->i_nlink == 0 can be true when called from
                  * block validator */
                 /* set i_nlink to 0 to prevent caching */
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 logfs_inode(inode)->li_flags |= LOGFS_IF_ZOMBIE;
                 iget_failed(inode);
                 if (!err)
@@ -199,7 +199,6 @@ static void logfs_init_inode(struct super_block *sb, struct inode *inode)
         inode->i_blocks = 0;
         inode->i_ctime  = CURRENT_TIME;
         inode->i_mtime  = CURRENT_TIME;
-        inode->i_nlink  = 1;
         li->li_refcount = 1;
         INIT_LIST_HEAD(&li->li_freeing_list);
 
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index d8d09380c7de..2ac4217b7901 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -126,7 +126,7 @@ static void logfs_disk_to_inode(struct logfs_disk_inode *di, struct inode*inode)
         inode->i_atime  = be64_to_timespec(di->di_atime);
         inode->i_ctime  = be64_to_timespec(di->di_ctime);
         inode->i_mtime  = be64_to_timespec(di->di_mtime);
-        inode->i_nlink  = be32_to_cpu(di->di_refcount);
+        set_nlink(inode, be32_to_cpu(di->di_refcount));
         inode->i_generation = be32_to_cpu(di->di_generation);
 
         switch (inode->i_mode & S_IFMT) {
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index e7d23e25bf1d..64cdcd662ffc 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -446,7 +446,7 @@ static struct inode *V1_minix_iget(struct inode *inode)
         inode->i_mode = raw_inode->i_mode;
         inode->i_uid = (uid_t)raw_inode->i_uid;
         inode->i_gid = (gid_t)raw_inode->i_gid;
-        inode->i_nlink = raw_inode->i_nlinks;
+        set_nlink(inode, raw_inode->i_nlinks);
         inode->i_size = raw_inode->i_size;
         inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = raw_inode->i_time;
         inode->i_mtime.tv_nsec = 0;
@@ -479,7 +479,7 @@ static struct inode *V2_minix_iget(struct inode *inode)
         inode->i_mode = raw_inode->i_mode;
         inode->i_uid = (uid_t)raw_inode->i_uid;
         inode->i_gid = (gid_t)raw_inode->i_gid;
-        inode->i_nlink = raw_inode->i_nlinks;
+        set_nlink(inode, raw_inode->i_nlinks);
         inode->i_size = raw_inode->i_size;
         inode->i_mtime.tv_sec = raw_inode->i_mtime;
         inode->i_atime.tv_sec = raw_inode->i_atime;
diff --git a/fs/namei.c b/fs/namei.c
index 7657be4352bf..ac6d214da827 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -137,7 +137,7 @@ static int do_getname(const char __user *filename, char *page)
         return retval;
 }
 
-static char *getname_flags(const char __user * filename, int flags)
+static char *getname_flags(const char __user *filename, int flags, int *empty)
 {
         char *tmp, *result;
 
@@ -148,6 +148,8 @@ static char *getname_flags(const char __user * filename, int flags)
 
                 result = tmp;
                 if (retval < 0) {
+                        if (retval == -ENOENT && empty)
+                                *empty = 1;
                         if (retval != -ENOENT || !(flags & LOOKUP_EMPTY)) {
                                 __putname(tmp);
                                 result = ERR_PTR(retval);
@@ -160,7 +162,7 @@ static char *getname_flags(const char __user * filename, int flags)
 
 char *getname(const char __user * filename)
 {
-        return getname_flags(filename, 0);
+        return getname_flags(filename, 0, 0);
 }
 
 #ifdef CONFIG_AUDITSYSCALL
@@ -1798,11 +1800,11 @@ struct dentry *lookup_one_len(const char *name, struct dentry *base, int len)
         return __lookup_hash(&this, base, NULL);
 }
 
-int user_path_at(int dfd, const char __user *name, unsigned flags,
-                 struct path *path)
+int user_path_at_empty(int dfd, const char __user *name, unsigned flags,
+                 struct path *path, int *empty)
 {
         struct nameidata nd;
-        char *tmp = getname_flags(name, flags);
+        char *tmp = getname_flags(name, flags, empty);
         int err = PTR_ERR(tmp);
         if (!IS_ERR(tmp)) {
 
@@ -1816,6 +1818,12 @@ int user_path_at(int dfd, const char __user *name, unsigned flags,
         return err;
 }
 
+int user_path_at(int dfd, const char __user *name, unsigned flags,
+                 struct path *path)
+{
+        return user_path_at_empty(dfd, name, flags, path, 0);
+}
+
 static int user_path_parent(int dfd, const char __user *path,
                         struct nameidata *nd, char **name)
 {
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 202f370526a7..5b5fa33b6b9d 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -228,7 +228,7 @@ static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
 
         DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
 
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         inode->i_uid = server->m.uid;
         inode->i_gid = server->m.gid;
 
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 4dc6d078f108..c07a55aec838 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -320,7 +320,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
                 memset(&inode->i_ctime, 0, sizeof(inode->i_ctime));
                 inode->i_version = 0;
                 inode->i_size = 0;
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 inode->i_uid = -2;
                 inode->i_gid = -2;
                 inode->i_blocks = 0;
@@ -355,7 +355,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
                                 | NFS_INO_INVALID_DATA
                                 | NFS_INO_REVAL_PAGECACHE;
                 if (fattr->valid & NFS_ATTR_FATTR_NLINK)
-                        inode->i_nlink = fattr->nlink;
+                        set_nlink(inode, fattr->nlink);
                 else if (nfs_server_capable(inode, NFS_CAP_NLINK))
                         nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
                 if (fattr->valid & NFS_ATTR_FATTR_OWNER)
@@ -1361,7 +1361,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
                         invalid |= NFS_INO_INVALID_ATTR;
                         if (S_ISDIR(inode->i_mode))
                                 invalid |= NFS_INO_INVALID_DATA;
-                        inode->i_nlink = fattr->nlink;
+                        set_nlink(inode, fattr->nlink);
                 }
         } else if (server->caps & NFS_CAP_NLINK)
                 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 666628b395f1..b50ffb72e5b3 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -354,7 +354,7 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode)
 
  failed_acl:
  failed_bmap:
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         iput(inode);  /* raw_inode will be deleted through
                          generic_delete_inode() */
         goto failed;
@@ -396,7 +396,7 @@ int nilfs_read_inode_common(struct inode *inode,
         inode->i_mode = le16_to_cpu(raw_inode->i_mode);
         inode->i_uid = (uid_t)le32_to_cpu(raw_inode->i_uid);
         inode->i_gid = (gid_t)le32_to_cpu(raw_inode->i_gid);
-        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+        set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
         inode->i_size = le64_to_cpu(raw_inode->i_size);
         inode->i_atime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
         inode->i_ctime.tv_sec = le64_to_cpu(raw_inode->i_ctime);
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index a3141990061e..768982de10e4 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -289,7 +289,7 @@ static int nilfs_do_unlink(struct inode *dir, struct dentry *dentry)
                 nilfs_warning(inode->i_sb, __func__,
                               "deleting nonexistent file (%lu), %d\n",
                               inode->i_ino, inode->i_nlink);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
         err = nilfs_delete_entry(de, page);
         if (err)
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 1371487da955..97e2dacbc867 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -612,7 +612,7 @@ static int ntfs_read_locked_inode(struct inode *vi)
          * might be tricky due to vfs interactions. Need to think about this
          * some more when implementing the unlink command.
          */
-        vi->i_nlink = le16_to_cpu(m->link_count);
+        set_nlink(vi, le16_to_cpu(m->link_count));
         /*
          * FIXME: Reparse points can have the directory bit set even though
          * they would be S_IFLNK. Need to deal with this further below when we
@@ -634,7 +634,7 @@ static int ntfs_read_locked_inode(struct inode *vi)
                 vi->i_mode &= ~vol->dmask;
                 /* Things break without this kludge! */
                 if (vi->i_nlink > 1)
-                        vi->i_nlink = 1;
+                        set_nlink(vi, 1);
         } else {
                 vi->i_mode |= S_IFREG;
                 /* Apply the file permissions mask set in the mount options. */
@@ -1242,7 +1242,7 @@ static int ntfs_read_locked_attr_inode(struct inode *base_vi, struct inode *vi)
         vi->i_version   = base_vi->i_version;
         vi->i_uid       = base_vi->i_uid;
         vi->i_gid       = base_vi->i_gid;
-        vi->i_nlink     = base_vi->i_nlink;
+        set_nlink(vi, base_vi->i_nlink);
         vi->i_mtime     = base_vi->i_mtime;
         vi->i_ctime     = base_vi->i_ctime;
         vi->i_atime     = base_vi->i_atime;
@@ -1508,7 +1508,7 @@ static int ntfs_read_locked_index_inode(struct inode *base_vi, struct inode *vi)
         vi->i_version   = base_vi->i_version;
         vi->i_uid       = base_vi->i_uid;
         vi->i_gid       = base_vi->i_gid;
-        vi->i_nlink     = base_vi->i_nlink;
+        set_nlink(vi, base_vi->i_nlink);
         vi->i_mtime     = base_vi->i_mtime;
         vi->i_ctime     = base_vi->i_ctime;
         vi->i_atime     = base_vi->i_atime;
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 8582e3f4f120..e2878b5895fb 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2292,7 +2292,7 @@ static int ocfs2_fill_new_dir_id(struct ocfs2_super *osb,
         ocfs2_journal_dirty(handle, di_bh);
 
         i_size_write(inode, size);
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         inode->i_blocks = ocfs2_inode_sector_count(inode);
 
         ret = ocfs2_mark_inode_dirty(handle, inode, di_bh);
@@ -2354,7 +2354,7 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
         ocfs2_journal_dirty(handle, new_bh);
 
         i_size_write(inode, inode->i_sb->s_blocksize);
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         inode->i_blocks = ocfs2_inode_sector_count(inode);
         status = ocfs2_mark_inode_dirty(handle, inode, fe_bh);
         if (status < 0) {
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 7642d7ca73e5..e1ed5e502ff2 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2092,7 +2092,7 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode)
         inode->i_uid     = be32_to_cpu(lvb->lvb_iuid);
         inode->i_gid     = be32_to_cpu(lvb->lvb_igid);
         inode->i_mode    = be16_to_cpu(lvb->lvb_imode);
-        inode->i_nlink   = be16_to_cpu(lvb->lvb_inlink);
+        set_nlink(inode, be16_to_cpu(lvb->lvb_inlink));
         ocfs2_unpack_timespec(&inode->i_atime,
                               be64_to_cpu(lvb->lvb_iatime_packed));
         ocfs2_unpack_timespec(&inode->i_mtime,
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index b4c8bb6b8d28..a22d2c098890 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -291,7 +291,7 @@ void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
                      (unsigned long long)OCFS2_I(inode)->ip_blkno,
                      (unsigned long long)le64_to_cpu(fe->i_blkno));
 
-        inode->i_nlink = ocfs2_read_links_count(fe);
+        set_nlink(inode, ocfs2_read_links_count(fe));
 
         trace_ocfs2_populate_inode(OCFS2_I(inode)->ip_blkno,
                                    le32_to_cpu(fe->i_flags));
@@ -1290,7 +1290,7 @@ void ocfs2_refresh_inode(struct inode *inode,
         OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
         ocfs2_set_inode_flags(inode);
         i_size_write(inode, le64_to_cpu(fe->i_size));
-        inode->i_nlink = ocfs2_read_links_count(fe);
+        set_nlink(inode, ocfs2_read_links_count(fe));
         inode->i_uid = le32_to_cpu(fe->i_uid);
         inode->i_gid = le32_to_cpu(fe->i_gid);
         inode->i_mode = le16_to_cpu(fe->i_mode);
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 53aa41ed7bf3..a8b2bfea574e 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -199,9 +199,7 @@ static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode)
          * these are used by the support functions here and in
          * callers. */
         if (S_ISDIR(mode))
-                inode->i_nlink = 2;
-        else
-                inode->i_nlink = 1;
+                set_nlink(inode, 2);
         inode_init_owner(inode, dir, mode);
         dquot_initialize(inode);
         return inode;
@@ -1379,7 +1377,7 @@ static int ocfs2_rename(struct inode *old_dir,
         }
 
         if (new_inode) {
-                new_inode->i_nlink--;
+                drop_nlink(new_inode);
                 new_inode->i_ctime = CURRENT_TIME;
         }
         old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
@@ -1387,9 +1385,9 @@ static int ocfs2_rename(struct inode *old_dir,
         if (update_dot_dot) {
                 status = ocfs2_update_entry(old_inode, handle,
                                             &old_inode_dot_dot_res, new_dir);
-                old_dir->i_nlink--;
+                drop_nlink(old_dir);
                 if (new_inode) {
-                        new_inode->i_nlink--;
+                        drop_nlink(new_inode);
                 } else {
                         inc_nlink(new_dir);
                         mark_inode_dirty(new_dir);
@@ -2018,7 +2016,7 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
         orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data;
         if (S_ISDIR(inode->i_mode))
                 ocfs2_add_links_count(orphan_fe, 1);
-        orphan_dir_inode->i_nlink = ocfs2_read_links_count(orphan_fe);
+        set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
         ocfs2_journal_dirty(handle, orphan_dir_bh);
 
         status = __ocfs2_add_entry(handle, orphan_dir_inode, name,
@@ -2116,7 +2114,7 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
         orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data;
         if (S_ISDIR(inode->i_mode))
                 ocfs2_add_links_count(orphan_fe, -1);
-        orphan_dir_inode->i_nlink = ocfs2_read_links_count(orphan_fe);
+        set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
         ocfs2_journal_dirty(handle, orphan_dir_bh);
 
 leave:
@@ -2282,7 +2280,7 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
                 goto leave;
         }
 
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         /* do the real work now. */
         status = __ocfs2_mknod_locked(dir, inode,
                                       0, &new_di_bh, parent_di_bh, handle,
@@ -2437,7 +2435,7 @@ int ocfs2_mv_orphaned_inode_to_new(struct inode *dir,
         di = (struct ocfs2_dinode *)di_bh->b_data;
         le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL);
         di->i_orphaned_slot = 0;
-        inode->i_nlink = 1;
+        set_nlink(inode, 1);
         ocfs2_set_links_count(di, inode->i_nlink);
         ocfs2_journal_dirty(handle, di_bh);
 
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index a2a5bff774e3..e4e0ff7962e2 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -242,7 +242,7 @@ found:
                 inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
                 inode->i_op = &openprom_inode_operations;
                 inode->i_fop = &openprom_operations;
-                inode->i_nlink = 2;
+                set_nlink(inode, 2);
                 break;
         case op_inode_prop:
                 if (!strcmp(dp->name, "options") && (len == 17) &&
@@ -251,7 +251,7 @@ found:
                 else
                         inode->i_mode = S_IFREG | S_IRUGO;
                 inode->i_fop = &openpromfs_prop_ops;
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
                 inode->i_size = ent_oi->u.prop->length;
                 break;
         }
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 8f0087e20e16..851ba3dcdc29 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2248,7 +2248,7 @@ static struct dentry *proc_pident_instantiate(struct inode *dir,
         ei = PROC_I(inode);
         inode->i_mode = p->mode;
         if (S_ISDIR(inode->i_mode))
-                inode->i_nlink = 2;     /* Use getattr to fix if necessary */
+                set_nlink(inode, 2);    /* Use getattr to fix if necessary */
         if (p->iop)
                 inode->i_op = p->iop;
         if (p->fop)
@@ -2642,7 +2642,7 @@ static struct dentry *proc_base_instantiate(struct inode *dir,
 
         inode->i_mode = p->mode;
         if (S_ISDIR(inode->i_mode))
-                inode->i_nlink = 2;
+                set_nlink(inode, 2);
         if (S_ISLNK(inode->i_mode))
                 inode->i_size = 64;
         if (p->iop)
@@ -2981,8 +2981,8 @@ static struct dentry *proc_pid_instantiate(struct inode *dir,
         inode->i_fop = &proc_tgid_base_operations;
         inode->i_flags|=S_IMMUTABLE;
 
-        inode->i_nlink = 2 + pid_entry_count_dirs(tgid_base_stuff,
-                ARRAY_SIZE(tgid_base_stuff));
+        set_nlink(inode, 2 + pid_entry_count_dirs(tgid_base_stuff,
+                                                  ARRAY_SIZE(tgid_base_stuff)));
 
         d_set_d_op(dentry, &pid_dentry_operations);
 
@@ -3233,8 +3233,8 @@ static struct dentry *proc_task_instantiate(struct inode *dir,
         inode->i_fop = &proc_tid_base_operations;
         inode->i_flags|=S_IMMUTABLE;
 
-        inode->i_nlink = 2 + pid_entry_count_dirs(tid_base_stuff,
-                ARRAY_SIZE(tid_base_stuff));
+        set_nlink(inode, 2 + pid_entry_count_dirs(tid_base_stuff,
+                                                  ARRAY_SIZE(tid_base_stuff)));
 
         d_set_d_op(dentry, &pid_dentry_operations);
 
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 9d99131d0d65..10090d9c7ad5 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -283,7 +283,7 @@ static int proc_getattr(struct vfsmount *mnt, struct dentry *dentry,
         struct inode *inode = dentry->d_inode;
         struct proc_dir_entry *de = PROC_I(inode)->pde;
         if (de && de->nlink)
-                inode->i_nlink = de->nlink;
+                set_nlink(inode, de->nlink);
 
         generic_fillattr(inode, stat);
         return 0;
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 7ed72d6c1c6f..7737c5468a40 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -445,7 +445,7 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
                 if (de->size)
                         inode->i_size = de->size;
                 if (de->nlink)
-                        inode->i_nlink = de->nlink;
+                        set_nlink(inode, de->nlink);
                 if (de->proc_iops)
                         inode->i_op = de->proc_iops;
                 if (de->proc_fops) {
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 1a77dbef226f..b44113279e30 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -39,7 +39,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
                 inode->i_fop = &proc_sys_file_operations;
         } else {
                 inode->i_mode |= S_IFDIR;
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 inode->i_op = &proc_sys_dir_operations;
                 inode->i_fop = &proc_sys_dir_file_operations;
         }
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 2b0646613f5a..3bdd21418432 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -379,7 +379,7 @@ struct inode *qnx4_iget(struct super_block *sb, unsigned long ino)
         inode->i_mode    = le16_to_cpu(raw_inode->di_mode);
         inode->i_uid     = (uid_t)le16_to_cpu(raw_inode->di_uid);
         inode->i_gid     = (gid_t)le16_to_cpu(raw_inode->di_gid);
-        inode->i_nlink   = le16_to_cpu(raw_inode->di_nlink);
+        set_nlink(inode, le16_to_cpu(raw_inode->di_nlink));
         inode->i_size    = le32_to_cpu(raw_inode->di_size);
         inode->i_mtime.tv_sec   = le32_to_cpu(raw_inode->di_mtime);
         inode->i_mtime.tv_nsec = 0;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 9b0d4b78b4fb..950f13af0951 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1154,7 +1154,7 @@ static void init_inode(struct inode *inode, struct treepath *path)
                 set_inode_item_key_version(inode, KEY_FORMAT_3_5);
                 set_inode_sd_version(inode, STAT_DATA_V1);
                 inode->i_mode = sd_v1_mode(sd);
-                inode->i_nlink = sd_v1_nlink(sd);
+                set_nlink(inode, sd_v1_nlink(sd));
                 inode->i_uid = sd_v1_uid(sd);
                 inode->i_gid = sd_v1_gid(sd);
                 inode->i_size = sd_v1_size(sd);
@@ -1199,7 +1199,7 @@ static void init_inode(struct inode *inode, struct treepath *path)
                 struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih);
 
                 inode->i_mode = sd_v2_mode(sd);
-                inode->i_nlink = sd_v2_nlink(sd);
+                set_nlink(inode, sd_v2_nlink(sd));
                 inode->i_uid = sd_v2_uid(sd);
                 inode->i_size = sd_v2_size(sd);
                 inode->i_gid = sd_v2_gid(sd);
@@ -1444,7 +1444,7 @@ void reiserfs_read_locked_inode(struct inode *inode,
                 /* a stale NFS handle can trigger this without it being an error */
                 pathrelse(&path_to_sd);
                 reiserfs_make_bad_inode(inode);
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 return;
         }
 
@@ -1832,7 +1832,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 #endif
 
         /* fill stat data */
-        inode->i_nlink = (S_ISDIR(mode) ? 2 : 1);
+        set_nlink(inode, (S_ISDIR(mode) ? 2 : 1));
 
         /* uid and gid must already be set by the caller for quota init */
 
@@ -1987,7 +1987,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
         make_bad_inode(inode);
 
       out_inserted_sd:
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         th->t_trans_id = 0;     /* so the caller can't use this handle later */
         unlock_new_inode(inode); /* OK to do even if we hadn't locked it */
         iput(inode);
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index ef392324bbf1..80058e8ce361 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -19,7 +19,7 @@
 #include <linux/reiserfs_xattr.h>
 #include <linux/quotaops.h>
 
-#define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
+#define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) set_nlink(i, 1); }
 #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i);
 
 // directory item contains array of entry headers. This performs
@@ -622,7 +622,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
                                dentry->d_name.len, inode, 1 /*visible */ );
         if (retval) {
                 int err;
-                inode->i_nlink--;
+                drop_nlink(inode);
                 reiserfs_update_sd(&th, inode);
                 err = journal_end(&th, dir->i_sb, jbegin_count);
                 if (err)
@@ -702,7 +702,7 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
                                dentry->d_name.len, inode, 1 /*visible */ );
         if (retval) {
                 int err;
-                inode->i_nlink--;
+                drop_nlink(inode);
                 reiserfs_update_sd(&th, inode);
                 err = journal_end(&th, dir->i_sb, jbegin_count);
                 if (err)
@@ -787,7 +787,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                                dentry->d_name.len, inode, 1 /*visible */ );
         if (retval) {
                 int err;
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 DEC_DIR_INODE_NLINK(dir);
                 reiserfs_update_sd(&th, inode);
                 err = journal_end(&th, dir->i_sb, jbegin_count);
@@ -964,7 +964,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry)
                 reiserfs_warning(inode->i_sb, "reiserfs-7042",
                                  "deleting nonexistent file (%lu), %d",
                                  inode->i_ino, inode->i_nlink);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
 
         drop_nlink(inode);
@@ -1086,7 +1086,7 @@ static int reiserfs_symlink(struct inode *parent_dir,
                                     dentry->d_name.len, inode, 1 /*visible */ );
         if (retval) {
                 int err;
-                inode->i_nlink--;
+                drop_nlink(inode);
                 reiserfs_update_sd(&th, inode);
                 err = journal_end(&th, parent_dir->i_sb, jbegin_count);
                 if (err)
@@ -1129,7 +1129,7 @@ static int reiserfs_link(struct dentry *old_dentry, struct inode *dir,
 
         retval = journal_begin(&th, dir->i_sb, jbegin_count);
         if (retval) {
-                inode->i_nlink--;
+                drop_nlink(inode);
                 reiserfs_write_unlock(dir->i_sb);
                 return retval;
         }
@@ -1144,7 +1144,7 @@ static int reiserfs_link(struct dentry *old_dentry, struct inode *dir,
 
         if (retval) {
                 int err;
-                inode->i_nlink--;
+                drop_nlink(inode);
                 err = journal_end(&th, dir->i_sb, jbegin_count);
                 reiserfs_write_unlock(dir->i_sb);
                 return err ? err : retval;
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 2305e3121cb1..8b4089f30408 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -337,7 +337,7 @@ static struct inode *romfs_iget(struct super_block *sb, unsigned long pos)
         inode->i_metasize = (ROMFH_SIZE + nlen + 1 + ROMFH_PAD) & ROMFH_MASK;
         inode->i_dataoffset = pos + inode->i_metasize;
 
-        i->i_nlink = 1;         /* Hard to decide.. */
+        set_nlink(i, 1);                /* Hard to decide.. */
         i->i_size = be32_to_cpu(ri.size);
         i->i_mtime.tv_sec = i->i_atime.tv_sec = i->i_ctime.tv_sec = 0;
         i->i_mtime.tv_nsec = i->i_atime.tv_nsec = i->i_ctime.tv_nsec = 0;
diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c
index 04bebcaa2373..fd7b3b3bda13 100644
--- a/fs/squashfs/inode.c
+++ b/fs/squashfs/inode.c
@@ -159,7 +159,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                         frag_offset = 0;
                 }
 
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
                 inode->i_size = le32_to_cpu(sqsh_ino->file_size);
                 inode->i_fop = &generic_ro_fops;
                 inode->i_mode |= S_IFREG;
@@ -203,7 +203,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                 }
 
                 xattr_id = le32_to_cpu(sqsh_ino->xattr);
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 inode->i_size = le64_to_cpu(sqsh_ino->file_size);
                 inode->i_op = &squashfs_inode_ops;
                 inode->i_fop = &generic_ro_fops;
@@ -232,7 +232,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                 if (err < 0)
                         goto failed_read;
 
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 inode->i_size = le16_to_cpu(sqsh_ino->file_size);
                 inode->i_op = &squashfs_dir_inode_ops;
                 inode->i_fop = &squashfs_dir_ops;
@@ -257,7 +257,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                         goto failed_read;
 
                 xattr_id = le32_to_cpu(sqsh_ino->xattr);
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 inode->i_size = le32_to_cpu(sqsh_ino->file_size);
                 inode->i_op = &squashfs_dir_inode_ops;
                 inode->i_fop = &squashfs_dir_ops;
@@ -284,7 +284,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                 if (err < 0)
                         goto failed_read;
 
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 inode->i_size = le32_to_cpu(sqsh_ino->symlink_size);
                 inode->i_op = &squashfs_symlink_inode_ops;
                 inode->i_data.a_ops = &squashfs_symlink_aops;
@@ -325,7 +325,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                         inode->i_mode |= S_IFCHR;
                 else
                         inode->i_mode |= S_IFBLK;
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 rdev = le32_to_cpu(sqsh_ino->rdev);
                 init_special_inode(inode, inode->i_mode, new_decode_dev(rdev));
 
@@ -349,7 +349,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                         inode->i_mode |= S_IFBLK;
                 xattr_id = le32_to_cpu(sqsh_ino->xattr);
                 inode->i_op = &squashfs_inode_ops;
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 rdev = le32_to_cpu(sqsh_ino->rdev);
                 init_special_inode(inode, inode->i_mode, new_decode_dev(rdev));
 
@@ -370,7 +370,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                         inode->i_mode |= S_IFIFO;
                 else
                         inode->i_mode |= S_IFSOCK;
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 init_special_inode(inode, inode->i_mode, 0);
                 break;
         }
@@ -389,7 +389,7 @@ int squashfs_read_inode(struct inode *inode, long long ino)
                         inode->i_mode |= S_IFSOCK;
                 xattr_id = le32_to_cpu(sqsh_ino->xattr);
                 inode->i_op = &squashfs_inode_ops;
-                inode->i_nlink = le32_to_cpu(sqsh_ino->nlink);
+                set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
                 init_special_inode(inode, inode->i_mode, 0);
                 break;
         }
diff --git a/fs/stack.c b/fs/stack.c
index b4f2ab48a61f..9c11519245a6 100644
--- a/fs/stack.c
+++ b/fs/stack.c
@@ -71,6 +71,6 @@ void fsstack_copy_attr_all(struct inode *dest, const struct inode *src)
         dest->i_ctime = src->i_ctime;
         dest->i_blkbits = src->i_blkbits;
         dest->i_flags = src->i_flags;
-        dest->i_nlink = src->i_nlink;
+        set_nlink(dest, src->i_nlink);
 }
 EXPORT_SYMBOL_GPL(fsstack_copy_attr_all);
diff --git a/fs/stat.c b/fs/stat.c
index 78a3aa83c7ea..8806b8997d2e 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -294,15 +294,16 @@ SYSCALL_DEFINE4(readlinkat, int, dfd, const char __user *, pathname,
 {
         struct path path;
         int error;
+        int empty = 0;
 
         if (bufsiz <= 0)
                 return -EINVAL;
 
-        error = user_path_at(dfd, pathname, LOOKUP_EMPTY, &path);
+        error = user_path_at_empty(dfd, pathname, LOOKUP_EMPTY, &path, &empty);
         if (!error) {
                 struct inode *inode = path.dentry->d_inode;
 
-                error = -EINVAL;
+                error = empty ? -ENOENT : -EINVAL;
                 if (inode->i_op->readlink) {
                         error = security_inode_readlink(path.dentry);
                         if (!error) {
diff --git a/fs/super.c b/fs/super.c
index 32a81f3467e0..afd0f1ad45e0 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -727,8 +727,13 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 
         if (sb->s_op->remount_fs) {
                 retval = sb->s_op->remount_fs(sb, &flags, data);
-                if (retval)
-                        return retval;
+                if (retval) {
+                        if (!force)
+                                return retval;
+                        /* If forced remount, go ahead despite any errors */
+                        WARN(1, "forced remount of a %s fs returned %i\n",
+                             sb->s_type->name, retval);
+                }
         }
         sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
 
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index e23f28894a3a..c81b22f3ace1 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -218,7 +218,7 @@ static void sysfs_refresh_inode(struct sysfs_dirent *sd, struct inode *inode)
         }
 
         if (sysfs_type(sd) == SYSFS_DIR)
-                inode->i_nlink = sd->s_dir.subdirs + 2;
+                set_nlink(inode, sd->s_dir.subdirs + 2);
 }
 
 int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 0630eb969a28..25ffb3e9a3f8 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -219,7 +219,7 @@ struct inode *sysv_iget(struct super_block *sb, unsigned int ino)
         inode->i_mode = fs16_to_cpu(sbi, raw_inode->i_mode);
         inode->i_uid = (uid_t)fs16_to_cpu(sbi, raw_inode->i_uid);
         inode->i_gid = (gid_t)fs16_to_cpu(sbi, raw_inode->i_gid);
-        inode->i_nlink = fs16_to_cpu(sbi, raw_inode->i_nlink);
+        set_nlink(inode, fs16_to_cpu(sbi, raw_inode->i_nlink));
         inode->i_size = fs32_to_cpu(sbi, raw_inode->i_size);
         inode->i_atime.tv_sec = fs32_to_cpu(sbi, raw_inode->i_atime);
         inode->i_mtime.tv_sec = fs32_to_cpu(sbi, raw_inode->i_mtime);
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index b28121278d46..20403dc5d437 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -129,7 +129,7 @@ struct inode *ubifs_iget(struct super_block *sb, unsigned long inum)
                 goto out_ino;
 
         inode->i_flags |= (S_NOCMTIME | S_NOATIME);
-        inode->i_nlink = le32_to_cpu(ino->nlink);
+        set_nlink(inode, le32_to_cpu(ino->nlink));
         inode->i_uid   = le32_to_cpu(ino->uid);
         inode->i_gid   = le32_to_cpu(ino->gid);
         inode->i_atime.tv_sec  = (int64_t)le64_to_cpu(ino->atime_sec);
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 16f19f55e63f..bf18f7a04544 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -558,10 +558,10 @@ int ubifs_removexattr(struct dentry *dentry, const char *name)
         }
 
         ubifs_assert(inode->i_nlink == 1);
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         err = remove_xattr(c, host, inode, &nm);
         if (err)
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
 
         /* If @i_nlink is 0, 'iput()' will delete the inode */
         iput(inode);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 329e7a108ab7..4fd1d809738c 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1241,6 +1241,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
         int offset;
         struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
         struct udf_inode_info *iinfo = UDF_I(inode);
+        unsigned int link_count;
 
         fe = (struct fileEntry *)bh->b_data;
         efe = (struct extendedFileEntry *)bh->b_data;
@@ -1323,9 +1324,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
         inode->i_mode &= ~sbi->s_umask;
         read_unlock(&sbi->s_cred_lock);
 
-        inode->i_nlink = le16_to_cpu(fe->fileLinkCount);
-        if (!inode->i_nlink)
-                inode->i_nlink = 1;
+        link_count = le16_to_cpu(fe->fileLinkCount);
+        if (!link_count)
+                link_count = 1;
+        set_nlink(inode, link_count);
 
         inode->i_size = le64_to_cpu(fe->informationLength);
         iinfo->i_lenExtents = inode->i_size;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 78d59ebd0656..4639e137222f 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -577,8 +577,7 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
 
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
         if (!fi) {
-                inode->i_nlink--;
-                mark_inode_dirty(inode);
+                inode_dec_link_count(inode);
                 iput(inode);
                 return err;
         }
@@ -618,8 +617,7 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
         init_special_inode(inode, mode, rdev);
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
         if (!fi) {
-                inode->i_nlink--;
-                mark_inode_dirty(inode);
+                inode_dec_link_count(inode);
                 iput(inode);
                 return err;
         }
@@ -665,12 +663,11 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         inode->i_fop = &udf_dir_operations;
         fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err);
         if (!fi) {
-                inode->i_nlink--;
-                mark_inode_dirty(inode);
+                inode_dec_link_count(inode);
                 iput(inode);
                 goto out;
         }
-        inode->i_nlink = 2;
+        set_nlink(inode, 2);
         cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
         cfi.icb.extLocation = cpu_to_lelb(dinfo->i_location);
         *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
@@ -683,7 +680,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
         if (!fi) {
-                inode->i_nlink = 0;
+                clear_nlink(inode);
                 mark_inode_dirty(inode);
                 iput(inode);
                 goto out;
@@ -839,7 +836,7 @@ static int udf_unlink(struct inode *dir, struct dentry *dentry)
         if (!inode->i_nlink) {
                 udf_debug("Deleting nonexistent file (%lu), %d\n",
                           inode->i_ino, inode->i_nlink);
-                inode->i_nlink = 1;
+                set_nlink(inode, 1);
         }
         retval = udf_delete_entry(dir, fi, &fibh, &cfi);
         if (retval)
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 2eabf04af3de..78a4c70d46b5 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -341,7 +341,7 @@ cg_found:
 
 fail_remove_inode:
         unlock_super(sb);
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         iput(inode);
         UFSD("EXIT (FAILED): err %d\n", err);
         return ERR_PTR(err);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index b4d791a83207..879b13436fa4 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -589,7 +589,7 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
          * Copy data to the in-core inode.
          */
         inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
-        inode->i_nlink = fs16_to_cpu(sb, ufs_inode->ui_nlink);
+        set_nlink(inode, fs16_to_cpu(sb, ufs_inode->ui_nlink));
         if (inode->i_nlink == 0) {
                 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
                 return -1;
@@ -637,7 +637,7 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
          * Copy data to the in-core inode.
          */
         inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
-        inode->i_nlink = fs16_to_cpu(sb, ufs2_inode->ui_nlink);
+        set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));
         if (inode->i_nlink == 0) {
                 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
                 return -1;
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 9ba2a07b7343..23ce927973a4 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1153,7 +1153,7 @@ xfs_setup_inode(
         hlist_add_fake(&inode->i_hash);
 
         inode->i_mode   = ip->i_d.di_mode;
-        inode->i_nlink  = ip->i_d.di_nlink;
+        set_nlink(inode, ip->i_d.di_nlink);
         inode->i_uid    = ip->i_d.di_uid;
         inode->i_gid    = ip->i_d.di_gid;
 
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 62157c03caf7..4df926199369 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -165,6 +165,7 @@ struct dentry_operations {
                         unsigned int, const char *, const struct qstr *);
         int (*d_delete)(const struct dentry *);
         void (*d_release)(struct dentry *);
+        void (*d_prune)(struct dentry *);
         void (*d_iput)(struct dentry *, struct inode *);
         char *(*d_dname)(struct dentry *, char *, int);
         struct vfsmount *(*d_automount)(struct path *);
@@ -184,8 +185,9 @@ struct dentry_operations {
 #define DCACHE_OP_COMPARE       0x0002
 #define DCACHE_OP_REVALIDATE    0x0004
 #define DCACHE_OP_DELETE        0x0008
+#define DCACHE_OP_PRUNE         0x0010
 
-#define DCACHE_DISCONNECTED     0x0010
+#define DCACHE_DISCONNECTED     0x0020
      /* This dentry is possibly not currently connected to the dcache tree, in
       * which case its parent will either be itself, or will have this flag as
       * well.  nfsd will not use a dentry with this bit set, but will first
@@ -196,8 +198,8 @@ struct dentry_operations {
       * dentry into place and return that dentry rather than the passed one,
       * typically using d_splice_alias. */
 
-#define DCACHE_REFERENCED       0x0020  /* Recently used, don't discard. */
-#define DCACHE_RCUACCESS        0x0040  /* Entry has ever been RCU-visible */
+#define DCACHE_REFERENCED       0x0040  /* Recently used, don't discard. */
+#define DCACHE_RCUACCESS        0x0080  /* Entry has ever been RCU-visible */
 
 #define DCACHE_CANT_MOUNT       0x0100
 #define DCACHE_GENOCIDE         0x0200
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 78af9385f415..0c4df261af7e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -768,7 +768,17 @@ struct inode {
 
         /* Stat data, not accessed from path walking */
         unsigned long           i_ino;
-        unsigned int            i_nlink;
+        /*
+         * Filesystems may only read i_nlink directly.  They shall use the
+         * following functions for modification:
+         *
+         *    (set|clear|inc|drop)_nlink
+         *    inode_(inc|dec)_link_count
+         */
+        union {
+                const unsigned int i_nlink;
+                unsigned int __i_nlink;
+        };
         dev_t                   i_rdev;
         struct timespec         i_atime;
         struct timespec         i_mtime;
@@ -1755,6 +1765,19 @@ static inline void mark_inode_dirty_sync(struct inode *inode)
 }
 
 /**
+ * set_nlink - directly set an inode's link count
+ * @inode: inode
+ * @nlink: new nlink (should be non-zero)
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.
+ */
+static inline void set_nlink(struct inode *inode, unsigned int nlink)
+{
+        inode->__i_nlink = nlink;
+}
+
+/**
  * inc_nlink - directly increment an inode's link count
  * @inode: inode
  *
@@ -1764,7 +1787,7 @@ static inline void mark_inode_dirty_sync(struct inode *inode)
  */
 static inline void inc_nlink(struct inode *inode)
 {
-        inode->i_nlink++;
+        inode->__i_nlink++;
 }
 
 static inline void inode_inc_link_count(struct inode *inode)
@@ -1786,7 +1809,7 @@ static inline void inode_inc_link_count(struct inode *inode)
  */
 static inline void drop_nlink(struct inode *inode)
 {
-        inode->i_nlink--;
+        inode->__i_nlink--;
 }
 
 /**
@@ -1799,7 +1822,7 @@ static inline void drop_nlink(struct inode *inode)
  */
 static inline void clear_nlink(struct inode *inode)
 {
-        inode->i_nlink = 0;
+        inode->__i_nlink = 0;
 }
 
 static inline void inode_dec_link_count(struct inode *inode)
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 409328d1cbbb..ffc02135c483 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -67,6 +67,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
 #define LOOKUP_EMPTY            0x4000
 
 extern int user_path_at(int, const char __user *, unsigned, struct path *);
+extern int user_path_at_empty(int, const char __user *, unsigned, struct path *, int *empty);
 
 #define user_path(name, path) user_path_at(AT_FDCWD, name, LOOKUP_FOLLOW, path)
 #define user_lpath(name, path) user_path_at(AT_FDCWD, name, 0, path)
diff --git a/mm/shmem.c b/mm/shmem.c
index fa4fa6ce13bc..45b9acb575f9 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2503,7 +2503,7 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
 
         d_instantiate(path.dentry, inode);
         inode->i_size = size;
-        inode->i_nlink = 0;     /* It is unlinked */
+        clear_nlink(inode);     /* It is unlinked */
 #ifndef CONFIG_MMU
         error = ramfs_nommu_expand_for_mapping(inode, size);
         if (error)