nfs: use %p[dD] instead of open-coded (and often racy) equivalents

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

11 files changed, 119 insertions, 186 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 02b0df769e2d..8b3dd7174fa2 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -98,9 +98,7 @@ nfs_opendir(struct inode *inode, struct file *filp)
         struct nfs_open_dir_context *ctx;
         struct rpc_cred *cred;
 
-        dfprintk(FILE, "NFS: open dir(%s/%s)\n",
-                        filp->f_path.dentry->d_parent->d_name.name,
-                        filp->f_path.dentry->d_name.name);
+        dfprintk(FILE, "NFS: open dir(%pD2)\n", filp);
 
         nfs_inc_stats(inode, NFSIOS_VFSOPEN);
 
@@ -297,11 +295,10 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des
                                 if (ctx->duped > 0
                                     && ctx->dup_cookie == *desc->dir_cookie) {
                                         if (printk_ratelimit()) {
-                                                pr_notice("NFS: directory %s/%s contains a readdir loop."
+                                                pr_notice("NFS: directory %pD2 contains a readdir loop."
                                                                 "Please contact your server vendor.  "
                                                                 "The file: %s has duplicate cookie %llu\n",
-                                                                desc->file->f_dentry->d_parent->d_name.name,
-                                                                desc->file->f_dentry->d_name.name,
+                                                                desc->file,
                                                                 array->array[i].string.name,
                                                                 *desc->dir_cookie);
                                         }
@@ -822,9 +819,8 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
         struct nfs_open_dir_context *dir_ctx = file->private_data;
         int res = 0;
 
-        dfprintk(FILE, "NFS: readdir(%s/%s) starting at cookie %llu\n",
-                        dentry->d_parent->d_name.name, dentry->d_name.name,
-                        (long long)ctx->pos);
+        dfprintk(FILE, "NFS: readdir(%pD2) starting at cookie %llu\n",
+                        file, (long long)ctx->pos);
         nfs_inc_stats(inode, NFSIOS_VFSGETDENTS);
 
         /*
@@ -880,22 +876,17 @@ out:
         nfs_unblock_sillyrename(dentry);
         if (res > 0)
                 res = 0;
-        dfprintk(FILE, "NFS: readdir(%s/%s) returns %d\n",
-                        dentry->d_parent->d_name.name, dentry->d_name.name,
-                        res);
+        dfprintk(FILE, "NFS: readdir(%pD2) returns %d\n", file, res);
         return res;
 }
 
 static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
 {
-        struct dentry *dentry = filp->f_path.dentry;
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         struct nfs_open_dir_context *dir_ctx = filp->private_data;
 
-        dfprintk(FILE, "NFS: llseek dir(%s/%s, %lld, %d)\n",
-                        dentry->d_parent->d_name.name,
-                        dentry->d_name.name,
-                        offset, whence);
+        dfprintk(FILE, "NFS: llseek dir(%pD2, %lld, %d)\n",
+                        filp, offset, whence);
 
         mutex_lock(&inode->i_mutex);
         switch (whence) {
@@ -925,15 +916,12 @@ out:
 static int nfs_fsync_dir(struct file *filp, loff_t start, loff_t end,
                          int datasync)
 {
-        struct dentry *dentry = filp->f_path.dentry;
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode = file_inode(filp);
 
-        dfprintk(FILE, "NFS: fsync dir(%s/%s) datasync %d\n",
-                        dentry->d_parent->d_name.name, dentry->d_name.name,
-                        datasync);
+        dfprintk(FILE, "NFS: fsync dir(%pD2) datasync %d\n", filp, datasync);
 
         mutex_lock(&inode->i_mutex);
-        nfs_inc_stats(dentry->d_inode, NFSIOS_VFSFSYNC);
+        nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
         mutex_unlock(&inode->i_mutex);
         return 0;
 }
@@ -1073,9 +1061,8 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
         }
 
         if (is_bad_inode(inode)) {
-                dfprintk(LOOKUPCACHE, "%s: %s/%s has dud inode\n",
-                                __func__, dentry->d_parent->d_name.name,
-                                dentry->d_name.name);
+                dfprintk(LOOKUPCACHE, "%s: %pd2 has dud inode\n",
+                                __func__, dentry);
                 goto out_bad;
         }
 
@@ -1125,9 +1112,8 @@ out_set_verifier:
         nfs_advise_use_readdirplus(dir);
  out_valid_noent:
         dput(parent);
-        dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is valid\n",
-                        __func__, dentry->d_parent->d_name.name,
-                        dentry->d_name.name);
+        dfprintk(LOOKUPCACHE, "NFS: %s(%pd2) is valid\n",
+                        __func__, dentry);
         return 1;
 out_zap_parent:
         nfs_zap_caches(dir);
@@ -1147,18 +1133,16 @@ out_zap_parent:
                 goto out_valid;
 
         dput(parent);
-        dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is invalid\n",
-                        __func__, dentry->d_parent->d_name.name,
-                        dentry->d_name.name);
+        dfprintk(LOOKUPCACHE, "NFS: %s(%pd2) is invalid\n",
+                        __func__, dentry);
         return 0;
 out_error:
         nfs_free_fattr(fattr);
         nfs_free_fhandle(fhandle);
         nfs4_label_free(label);
         dput(parent);
-        dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) lookup returned error %d\n",
-                        __func__, dentry->d_parent->d_name.name,
-                        dentry->d_name.name, error);
+        dfprintk(LOOKUPCACHE, "NFS: %s(%pd2) lookup returned error %d\n",
+                        __func__, dentry, error);
         return error;
 }
 
@@ -1182,16 +1166,14 @@ static int nfs_weak_revalidate(struct dentry *dentry, unsigned int flags)
          * eventually need to do something more here.
          */
         if (!inode) {
-                dfprintk(LOOKUPCACHE, "%s: %s/%s has negative inode\n",
-                                __func__, dentry->d_parent->d_name.name,
-                                dentry->d_name.name);
+                dfprintk(LOOKUPCACHE, "%s: %pd2 has negative inode\n",
+                                __func__, dentry);
                 return 1;
         }
 
         if (is_bad_inode(inode)) {
-                dfprintk(LOOKUPCACHE, "%s: %s/%s has dud inode\n",
-                                __func__, dentry->d_parent->d_name.name,
-                                dentry->d_name.name);
+                dfprintk(LOOKUPCACHE, "%s: %pd2 has dud inode\n",
+                                __func__, dentry);
                 return 0;
         }
 
@@ -1206,9 +1188,8 @@ static int nfs_weak_revalidate(struct dentry *dentry, unsigned int flags)
  */
 static int nfs_dentry_delete(const struct dentry *dentry)
 {
-        dfprintk(VFS, "NFS: dentry_delete(%s/%s, %x)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
-                dentry->d_flags);
+        dfprintk(VFS, "NFS: dentry_delete(%pd2, %x)\n",
+                dentry, dentry->d_flags);
 
         /* Unhash any dentry with a stale inode */
         if (dentry->d_inode != NULL && NFS_STALE(dentry->d_inode))
@@ -1286,8 +1267,7 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in
         struct nfs4_label *label = NULL;
         int error;
 
-        dfprintk(VFS, "NFS: lookup(%s/%s)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name);
+        dfprintk(VFS, "NFS: lookup(%pd2)\n", dentry);
         nfs_inc_stats(dir, NFSIOS_VFSLOOKUP);
 
         res = ERR_PTR(-ENAMETOOLONG);
@@ -1418,8 +1398,8 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry,
         /* Expect a negative dentry */
         BUG_ON(dentry->d_inode);
 
-        dfprintk(VFS, "NFS: atomic_open(%s/%ld), %s\n",
-                        dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+        dfprintk(VFS, "NFS: atomic_open(%s/%ld), %pd\n",
+                        dir->i_sb->s_id, dir->i_ino, dentry);
 
         err = nfs_check_flags(open_flags);
         if (err)
@@ -1608,8 +1588,8 @@ int nfs_create(struct inode *dir, struct dentry *dentry,
         int open_flags = excl ? O_CREAT | O_EXCL : O_CREAT;
         int error;
 
-        dfprintk(VFS, "NFS: create(%s/%ld), %s\n",
-                        dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+        dfprintk(VFS, "NFS: create(%s/%ld), %pd\n",
+                        dir->i_sb->s_id, dir->i_ino, dentry);
 
         attr.ia_mode = mode;
         attr.ia_valid = ATTR_MODE;
@@ -1635,8 +1615,8 @@ nfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
         struct iattr attr;
         int status;
 
-        dfprintk(VFS, "NFS: mknod(%s/%ld), %s\n",
-                        dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+        dfprintk(VFS, "NFS: mknod(%s/%ld), %pd\n",
+                        dir->i_sb->s_id, dir->i_ino, dentry);
 
         if (!new_valid_dev(rdev))
                 return -EINVAL;
@@ -1664,8 +1644,8 @@ int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
         struct iattr attr;
         int error;
 
-        dfprintk(VFS, "NFS: mkdir(%s/%ld), %s\n",
-                        dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+        dfprintk(VFS, "NFS: mkdir(%s/%ld), %pd\n",
+                        dir->i_sb->s_id, dir->i_ino, dentry);
 
         attr.ia_valid = ATTR_MODE;
         attr.ia_mode = mode | S_IFDIR;
@@ -1692,8 +1672,8 @@ int nfs_rmdir(struct inode *dir, struct dentry *dentry)
 {
         int error;
 
-        dfprintk(VFS, "NFS: rmdir(%s/%ld), %s\n",
-                        dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+        dfprintk(VFS, "NFS: rmdir(%s/%ld), %pd\n",
+                        dir->i_sb->s_id, dir->i_ino, dentry);
 
         trace_nfs_rmdir_enter(dir, dentry);
         if (dentry->d_inode) {
@@ -1728,8 +1708,7 @@ static int nfs_safe_remove(struct dentry *dentry)
         struct inode *inode = dentry->d_inode;
         int error = -EBUSY;
                 
-        dfprintk(VFS, "NFS: safe_remove(%s/%s)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name);
+        dfprintk(VFS, "NFS: safe_remove(%pd2)\n", dentry);
 
         /* If the dentry was sillyrenamed, we simply call d_delete() */
         if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
@@ -1762,8 +1741,8 @@ int nfs_unlink(struct inode *dir, struct dentry *dentry)
         int error;
         int need_rehash = 0;
 
-        dfprintk(VFS, "NFS: unlink(%s/%ld, %s)\n", dir->i_sb->s_id,
-                dir->i_ino, dentry->d_name.name);
+        dfprintk(VFS, "NFS: unlink(%s/%ld, %pd)\n", dir->i_sb->s_id,
+                dir->i_ino, dentry);
 
         trace_nfs_unlink_enter(dir, dentry);
         spin_lock(&dentry->d_lock);
@@ -1813,8 +1792,8 @@ int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
         unsigned int pathlen = strlen(symname);
         int error;
 
-        dfprintk(VFS, "NFS: symlink(%s/%ld, %s, %s)\n", dir->i_sb->s_id,
-                dir->i_ino, dentry->d_name.name, symname);
+        dfprintk(VFS, "NFS: symlink(%s/%ld, %pd, %s)\n", dir->i_sb->s_id,
+                dir->i_ino, dentry, symname);
 
         if (pathlen > PAGE_SIZE)
                 return -ENAMETOOLONG;
@@ -1836,9 +1815,9 @@ int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
         error = NFS_PROTO(dir)->symlink(dir, dentry, page, pathlen, &attr);
         trace_nfs_symlink_exit(dir, dentry, error);
         if (error != 0) {
-                dfprintk(VFS, "NFS: symlink(%s/%ld, %s, %s) error %d\n",
+                dfprintk(VFS, "NFS: symlink(%s/%ld, %pd, %s) error %d\n",
                         dir->i_sb->s_id, dir->i_ino,
-                        dentry->d_name.name, symname, error);
+                        dentry, symname, error);
                 d_drop(dentry);
                 __free_page(page);
                 return error;
@@ -1865,9 +1844,8 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
         struct inode *inode = old_dentry->d_inode;
         int error;
 
-        dfprintk(VFS, "NFS: link(%s/%s -> %s/%s)\n",
-                old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
-                dentry->d_parent->d_name.name, dentry->d_name.name);
+        dfprintk(VFS, "NFS: link(%pd2 -> %pd2)\n",
+                old_dentry, dentry);
 
         trace_nfs_link_enter(inode, dir, dentry);
         NFS_PROTO(inode)->return_delegation(inode);
@@ -1915,9 +1893,8 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         struct dentry *dentry = NULL, *rehash = NULL;
         int error = -EBUSY;
 
-        dfprintk(VFS, "NFS: rename(%s/%s -> %s/%s, ct=%d)\n",
-                 old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
-                 new_dentry->d_parent->d_name.name, new_dentry->d_name.name,
+        dfprintk(VFS, "NFS: rename(%pd2 -> %pd2, ct=%d)\n",
+                 old_dentry, new_dentry,
                  d_count(new_dentry));
 
         trace_nfs_rename_enter(old_dir, old_dentry, new_dir, new_dentry);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 91ff089d3412..d71d66c9e0a1 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -124,9 +124,8 @@ static inline int put_dreq(struct nfs_direct_req *dreq)
 ssize_t nfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_t pos, unsigned long nr_segs)
 {
 #ifndef CONFIG_NFS_SWAP
-        dprintk("NFS: nfs_direct_IO (%s) off/no(%Ld/%lu) EINVAL\n",
-                        iocb->ki_filp->f_path.dentry->d_name.name,
-                        (long long) pos, nr_segs);
+        dprintk("NFS: nfs_direct_IO (%pD) off/no(%Ld/%lu) EINVAL\n",
+                        iocb->ki_filp, (long long) pos, nr_segs);
 
         return -EINVAL;
 #else
@@ -909,10 +908,8 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, const struct iovec *iov,
         count = iov_length(iov, nr_segs);
         nfs_add_stats(mapping->host, NFSIOS_DIRECTREADBYTES, count);
 
-        dfprintk(FILE, "NFS: direct read(%s/%s, %zd@%Ld)\n",
-                file->f_path.dentry->d_parent->d_name.name,
-                file->f_path.dentry->d_name.name,
-                count, (long long) pos);
+        dfprintk(FILE, "NFS: direct read(%pD2, %zd@%Ld)\n",
+                file, count, (long long) pos);
 
         retval = 0;
         if (!count)
@@ -965,10 +962,8 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
         count = iov_length(iov, nr_segs);
         nfs_add_stats(mapping->host, NFSIOS_DIRECTWRITTENBYTES, count);
 
-        dfprintk(FILE, "NFS: direct write(%s/%s, %zd@%Ld)\n",
-                file->f_path.dentry->d_parent->d_name.name,
-                file->f_path.dentry->d_name.name,
-                count, (long long) pos);
+        dfprintk(FILE, "NFS: direct write(%pD2, %zd@%Ld)\n",
+                file, count, (long long) pos);
 
         retval = generic_write_checks(file, &pos, &count, 0);
         if (retval)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 1e6bfdbc1aff..e2fcacf07de3 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -65,9 +65,7 @@ nfs_file_open(struct inode *inode, struct file *filp)
 {
         int res;
 
-        dprintk("NFS: open file(%s/%s)\n",
-                        filp->f_path.dentry->d_parent->d_name.name,
-                        filp->f_path.dentry->d_name.name);
+        dprintk("NFS: open file(%pD2)\n", filp);
 
         nfs_inc_stats(inode, NFSIOS_VFSOPEN);
         res = nfs_check_flags(filp->f_flags);
@@ -81,9 +79,7 @@ nfs_file_open(struct inode *inode, struct file *filp)
 int
 nfs_file_release(struct inode *inode, struct file *filp)
 {
-        dprintk("NFS: release(%s/%s)\n",
-                        filp->f_path.dentry->d_parent->d_name.name,
-                        filp->f_path.dentry->d_name.name);
+        dprintk("NFS: release(%pD2)\n", filp);
 
         nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
         return nfs_release(inode, filp);
@@ -123,10 +119,8 @@ force_reval:
 
 loff_t nfs_file_llseek(struct file *filp, loff_t offset, int whence)
 {
-        dprintk("NFS: llseek file(%s/%s, %lld, %d)\n",
-                        filp->f_path.dentry->d_parent->d_name.name,
-                        filp->f_path.dentry->d_name.name,
-                        offset, whence);
+        dprintk("NFS: llseek file(%pD2, %lld, %d)\n",
+                        filp, offset, whence);
 
         /*
          * whence == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
@@ -150,12 +144,9 @@ EXPORT_SYMBOL_GPL(nfs_file_llseek);
 int
 nfs_file_flush(struct file *file, fl_owner_t id)
 {
-        struct dentry   *dentry = file->f_path.dentry;
-        struct inode    *inode = dentry->d_inode;
+        struct inode    *inode = file_inode(file);
 
-        dprintk("NFS: flush(%s/%s)\n",
-                        dentry->d_parent->d_name.name,
-                        dentry->d_name.name);
+        dprintk("NFS: flush(%pD2)\n", file);
 
         nfs_inc_stats(inode, NFSIOS_VFSFLUSH);
         if ((file->f_mode & FMODE_WRITE) == 0)
@@ -177,15 +168,14 @@ ssize_t
 nfs_file_read(struct kiocb *iocb, const struct iovec *iov,
                 unsigned long nr_segs, loff_t pos)
 {
-        struct dentry * dentry = iocb->ki_filp->f_path.dentry;
-        struct inode * inode = dentry->d_inode;
+        struct inode *inode = file_inode(iocb->ki_filp);
         ssize_t result;
 
         if (iocb->ki_filp->f_flags & O_DIRECT)
                 return nfs_file_direct_read(iocb, iov, nr_segs, pos, true);
 
-        dprintk("NFS: read(%s/%s, %lu@%lu)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
+        dprintk("NFS: read(%pD2, %lu@%lu)\n",
+                iocb->ki_filp,
                 (unsigned long) iov_length(iov, nr_segs), (unsigned long) pos);
 
         result = nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
@@ -203,13 +193,11 @@ nfs_file_splice_read(struct file *filp, loff_t *ppos,
                      struct pipe_inode_info *pipe, size_t count,
                      unsigned int flags)
 {
-        struct dentry *dentry = filp->f_path.dentry;
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         ssize_t res;
 
-        dprintk("NFS: splice_read(%s/%s, %lu@%Lu)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
-                (unsigned long) count, (unsigned long long) *ppos);
+        dprintk("NFS: splice_read(%pD2, %lu@%Lu)\n",
+                filp, (unsigned long) count, (unsigned long long) *ppos);
 
         res = nfs_revalidate_mapping(inode, filp->f_mapping);
         if (!res) {
@@ -224,12 +212,10 @@ EXPORT_SYMBOL_GPL(nfs_file_splice_read);
 int
 nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
 {
-        struct dentry *dentry = file->f_path.dentry;
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode = file_inode(file);
         int     status;
 
-        dprintk("NFS: mmap(%s/%s)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name);
+        dprintk("NFS: mmap(%pD2)\n", file);
 
         /* Note: generic_file_mmap() returns ENOSYS on nommu systems
          *       so we call that before revalidating the mapping
@@ -258,15 +244,12 @@ EXPORT_SYMBOL_GPL(nfs_file_mmap);
 int
 nfs_file_fsync_commit(struct file *file, loff_t start, loff_t end, int datasync)
 {
-        struct dentry *dentry = file->f_path.dentry;
         struct nfs_open_context *ctx = nfs_file_open_context(file);
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode = file_inode(file);
         int have_error, do_resend, status;
         int ret = 0;
 
-        dprintk("NFS: fsync file(%s/%s) datasync %d\n",
-                        dentry->d_parent->d_name.name, dentry->d_name.name,
-                        datasync);
+        dprintk("NFS: fsync file(%pD2) datasync %d\n", file, datasync);
 
         nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
         do_resend = test_and_clear_bit(NFS_CONTEXT_RESEND_WRITES, &ctx->flags);
@@ -371,10 +354,8 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
         struct page *page;
         int once_thru = 0;
 
-        dfprintk(PAGECACHE, "NFS: write_begin(%s/%s(%ld), %u@%lld)\n",
-                file->f_path.dentry->d_parent->d_name.name,
-                file->f_path.dentry->d_name.name,
-                mapping->host->i_ino, len, (long long) pos);
+        dfprintk(PAGECACHE, "NFS: write_begin(%pD2(%ld), %u@%lld)\n",
+                file, mapping->host->i_ino, len, (long long) pos);
 
 start:
         /*
@@ -414,10 +395,8 @@ static int nfs_write_end(struct file *file, struct address_space *mapping,
         struct nfs_open_context *ctx = nfs_file_open_context(file);
         int status;
 
-        dfprintk(PAGECACHE, "NFS: write_end(%s/%s(%ld), %u@%lld)\n",
-                file->f_path.dentry->d_parent->d_name.name,
-                file->f_path.dentry->d_name.name,
-                mapping->host->i_ino, len, (long long) pos);
+        dfprintk(PAGECACHE, "NFS: write_end(%pD2(%ld), %u@%lld)\n",
+                file, mapping->host->i_ino, len, (long long) pos);
 
         /*
          * Zero any uninitialised parts of the page, and then mark the page
@@ -601,22 +580,21 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct page *page = vmf->page;
         struct file *filp = vma->vm_file;
-        struct dentry *dentry = filp->f_path.dentry;
+        struct inode *inode = file_inode(filp);
         unsigned pagelen;
         int ret = VM_FAULT_NOPAGE;
         struct address_space *mapping;
 
-        dfprintk(PAGECACHE, "NFS: vm_page_mkwrite(%s/%s(%ld), offset %lld)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
-                filp->f_mapping->host->i_ino,
+        dfprintk(PAGECACHE, "NFS: vm_page_mkwrite(%pD2(%ld), offset %lld)\n",
+                filp, filp->f_mapping->host->i_ino,
                 (long long)page_offset(page));
 
         /* make sure the cache has finished storing the page */
-        nfs_fscache_wait_on_page_write(NFS_I(dentry->d_inode), page);
+        nfs_fscache_wait_on_page_write(NFS_I(inode), page);
 
         lock_page(page);
         mapping = page_file_mapping(page);
-        if (mapping != dentry->d_inode->i_mapping)
+        if (mapping != inode->i_mapping)
                 goto out_unlock;
 
         wait_on_page_writeback(page);
@@ -659,22 +637,21 @@ static int nfs_need_sync_write(struct file *filp, struct inode *inode)
 ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
                        unsigned long nr_segs, loff_t pos)
 {
-        struct dentry * dentry = iocb->ki_filp->f_path.dentry;
-        struct inode * inode = dentry->d_inode;
+        struct file *file = iocb->ki_filp;
+        struct inode *inode = file_inode(file);
         unsigned long written = 0;
         ssize_t result;
         size_t count = iov_length(iov, nr_segs);
 
-        result = nfs_key_timeout_notify(iocb->ki_filp, inode);
+        result = nfs_key_timeout_notify(file, inode);
         if (result)
                 return result;
 
-        if (iocb->ki_filp->f_flags & O_DIRECT)
+        if (file->f_flags & O_DIRECT)
                 return nfs_file_direct_write(iocb, iov, nr_segs, pos, true);
 
-        dprintk("NFS: write(%s/%s, %lu@%Ld)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
-                (unsigned long) count, (long long) pos);
+        dprintk("NFS: write(%pD2, %lu@%Ld)\n",
+                file, (unsigned long) count, (long long) pos);
 
         result = -EBUSY;
         if (IS_SWAPFILE(inode))
@@ -682,8 +659,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
         /*
          * O_APPEND implies that we must revalidate the file length.
          */
-        if (iocb->ki_filp->f_flags & O_APPEND) {
-                result = nfs_revalidate_file_size(inode, iocb->ki_filp);
+        if (file->f_flags & O_APPEND) {
+                result = nfs_revalidate_file_size(inode, file);
                 if (result)
                         goto out;
         }
@@ -697,8 +674,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
                 written = result;
 
         /* Return error values for O_DSYNC and IS_SYNC() */
-        if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
-                int err = vfs_fsync(iocb->ki_filp, 0);
+        if (result >= 0 && nfs_need_sync_write(file, inode)) {
+                int err = vfs_fsync(file, 0);
                 if (err < 0)
                         result = err;
         }
@@ -717,14 +694,12 @@ ssize_t nfs_file_splice_write(struct pipe_inode_info *pipe,
                               struct file *filp, loff_t *ppos,
                               size_t count, unsigned int flags)
 {
-        struct dentry *dentry = filp->f_path.dentry;
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         unsigned long written = 0;
         ssize_t ret;
 
-        dprintk("NFS splice_write(%s/%s, %lu@%llu)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
-                (unsigned long) count, (unsigned long long) *ppos);
+        dprintk("NFS splice_write(%pD2, %lu@%llu)\n",
+                filp, (unsigned long) count, (unsigned long long) *ppos);
 
         /*
          * The combination of splice and an O_APPEND destination is disallowed.
@@ -883,10 +858,8 @@ int nfs_lock(struct file *filp, int cmd, struct file_lock *fl)
         int ret = -ENOLCK;
         int is_local = 0;
 
-        dprintk("NFS: lock(%s/%s, t=%x, fl=%x, r=%lld:%lld)\n",
-                        filp->f_path.dentry->d_parent->d_name.name,
-                        filp->f_path.dentry->d_name.name,
-                        fl->fl_type, fl->fl_flags,
+        dprintk("NFS: lock(%pD2, t=%x, fl=%x, r=%lld:%lld)\n",
+                        filp, fl->fl_type, fl->fl_flags,
                         (long long)fl->fl_start, (long long)fl->fl_end);
 
         nfs_inc_stats(inode, NFSIOS_VFSLOCK);
@@ -923,10 +896,8 @@ int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
         struct inode *inode = filp->f_mapping->host;
         int is_local = 0;
 
-        dprintk("NFS: flock(%s/%s, t=%x, fl=%x)\n",
-                        filp->f_path.dentry->d_parent->d_name.name,
-                        filp->f_path.dentry->d_name.name,
-                        fl->fl_type, fl->fl_flags);
+        dprintk("NFS: flock(%pD2, t=%x, fl=%x)\n",
+                        filp, fl->fl_type, fl->fl_flags);
 
         if (!(fl->fl_flags & FL_FLOCK))
                 return -ENOLCK;
@@ -960,9 +931,7 @@ EXPORT_SYMBOL_GPL(nfs_flock);
  */
 int nfs_setlease(struct file *file, long arg, struct file_lock **fl)
 {
-        dprintk("NFS: setlease(%s/%s, arg=%ld)\n",
-                        file->f_path.dentry->d_parent->d_name.name,
-                        file->f_path.dentry->d_name.name, arg);
+        dprintk("NFS: setlease(%pD2, arg=%ld)\n", file, arg);
         return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(nfs_setlease);
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 348b535cd786..b5a0afc3ee10 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -253,9 +253,8 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh,
 
         dprintk("--> nfs_do_submount()\n");
 
-        dprintk("%s: submounting on %s/%s\n", __func__,
-                        dentry->d_parent->d_name.name,
-                        dentry->d_name.name);
+        dprintk("%s: submounting on %pd2\n", __func__,
+                        dentry);
         if (page == NULL)
                 goto out;
         devname = nfs_devname(dentry, page, PAGE_SIZE);
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 90cb10d7b693..01b6f6a49d16 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -321,7 +321,7 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         umode_t mode = sattr->ia_mode;
         int status = -ENOMEM;
 
-        dprintk("NFS call  create %s\n", dentry->d_name.name);
+        dprintk("NFS call  create %pd\n", dentry);
 
         data = nfs3_alloc_createdata();
         if (data == NULL)
@@ -548,7 +548,7 @@ nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
         if (len > NFS3_MAXPATHLEN)
                 return -ENAMETOOLONG;
 
-        dprintk("NFS call  symlink %s\n", dentry->d_name.name);
+        dprintk("NFS call  symlink %pd\n", dentry);
 
         data = nfs3_alloc_createdata();
         if (data == NULL)
@@ -576,7 +576,7 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
         umode_t mode = sattr->ia_mode;
         int status = -ENOMEM;
 
-        dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
+        dprintk("NFS call  mkdir %pd\n", dentry);
 
         sattr->ia_mode &= ~current_umask();
 
@@ -695,7 +695,7 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         umode_t mode = sattr->ia_mode;
         int status = -ENOMEM;
 
-        dprintk("NFS call  mknod %s %u:%u\n", dentry->d_name.name,
+        dprintk("NFS call  mknod %pd %u:%u\n", dentry,
                         MAJOR(rdev), MINOR(rdev));
 
         sattr->ia_mode &= ~current_umask();
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 77efaf15ec90..9c8f09a2156f 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -31,9 +31,7 @@ nfs4_file_open(struct inode *inode, struct file *filp)
          * -EOPENSTALE.  The VFS will retry the lookup/create/open.
          */
 
-        dprintk("NFS: open file(%s/%s)\n",
-                dentry->d_parent->d_name.name,
-                dentry->d_name.name);
+        dprintk("NFS: open file(%pd2)\n", dentry);
 
         if ((openflags & O_ACCMODE) == 3)
                 openflags--;
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 2288cd3c9278..049b9fb0d2c9 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -283,8 +283,7 @@ static struct vfsmount *nfs_follow_referral(struct dentry *dentry,
         if (locations == NULL || locations->nlocations <= 0)
                 goto out;
 
-        dprintk("%s: referral at %s/%s\n", __func__,
-                dentry->d_parent->d_name.name, dentry->d_name.name);
+        dprintk("%s: referral at %pd2\n", __func__, dentry);
 
         page = (char *) __get_free_page(GFP_USER);
         if (!page)
@@ -348,8 +347,8 @@ static struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *
         mnt = ERR_PTR(-ENOENT);
 
         parent = dget_parent(dentry);
-        dprintk("%s: getting locations for %s/%s\n",
-                __func__, parent->d_name.name, dentry->d_name.name);
+        dprintk("%s: getting locations for %pd2\n",
+                __func__, dentry);
 
         err = nfs4_proc_fs_locations(client, parent->d_inode, &dentry->d_name, fs_locations, page);
         dput(parent);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d53d6785cba2..75e46bbf7f41 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3738,9 +3738,8 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
         };
         int                     status;
 
-        dprintk("%s: dentry = %s/%s, cookie = %Lu\n", __func__,
-                        dentry->d_parent->d_name.name,
-                        dentry->d_name.name,
+        dprintk("%s: dentry = %pd2, cookie = %Lu\n", __func__,
+                        dentry,
                         (unsigned long long)cookie);
         nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args);
         res.pgbase = args.pgbase;
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index a8f57c728df5..fddbba2d9eff 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -235,7 +235,7 @@ nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         };
         int status = -ENOMEM;
 
-        dprintk("NFS call  create %s\n", dentry->d_name.name);
+        dprintk("NFS call  create %pd\n", dentry);
         data = nfs_alloc_createdata(dir, dentry, sattr);
         if (data == NULL)
                 goto out;
@@ -265,7 +265,7 @@ nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         umode_t mode;
         int status = -ENOMEM;
 
-        dprintk("NFS call  mknod %s\n", dentry->d_name.name);
+        dprintk("NFS call  mknod %pd\n", dentry);
 
         mode = sattr->ia_mode;
         if (S_ISFIFO(mode)) {
@@ -423,7 +423,7 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
         };
         int status = -ENAMETOOLONG;
 
-        dprintk("NFS call  symlink %s\n", dentry->d_name.name);
+        dprintk("NFS call  symlink %pd\n", dentry);
 
         if (len > NFS2_MAXPATHLEN)
                 goto out;
@@ -462,7 +462,7 @@ nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
         };
         int status = -ENOMEM;
 
-        dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
+        dprintk("NFS call  mkdir %pd\n", dentry);
         data = nfs_alloc_createdata(dir, dentry, sattr);
         if (data == NULL)
                 goto out;
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index bb939edd4c99..8285de9eaad2 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -495,9 +495,8 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry)
         struct rpc_task *task;
         int            error = -EIO;
 
-        dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n",
-                dentry->d_parent->d_name.name, dentry->d_name.name,
-                d_count(dentry));
+        dfprintk(VFS, "NFS: silly-rename(%pd2, ct=%d)\n",
+                dentry, d_count(dentry));
         nfs_inc_stats(dir, NFSIOS_SILLYRENAME);
 
         /*
@@ -522,8 +521,8 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry)
                                 SILLYNAME_FILEID_LEN, fileid,
                                 SILLYNAME_COUNTER_LEN, sillycounter);
 
-                dfprintk(VFS, "NFS: trying to rename %s to %s\n",
-                                dentry->d_name.name, silly);
+                dfprintk(VFS, "NFS: trying to rename %pd to %s\n",
+                                dentry, silly);
 
                 sdentry = lookup_one_len(silly, dentry->d_parent, slen);
                 /*
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index ac1dc331ba31..c1d548211c31 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -954,10 +954,8 @@ int nfs_updatepage(struct file *file, struct page *page,
 
         nfs_inc_stats(inode, NFSIOS_VFSUPDATEPAGE);
 
-        dprintk("NFS:       nfs_updatepage(%s/%s %d@%lld)\n",
-                file->f_path.dentry->d_parent->d_name.name,
-                file->f_path.dentry->d_name.name, count,
-                (long long)(page_file_offset(page) + offset));
+        dprintk("NFS:       nfs_updatepage(%pD2 %d@%lld)\n",
+                file, count, (long long)(page_file_offset(page) + offset));
 
         if (nfs_can_extend_write(file, page, inode)) {
                 count = max(count + offset, nfs_page_length(page));