dcache_{readdir,dir_lseek}() users: switch to ->iterate_shared

no need to lock directory in dcache_dir_lseek(), while we are
at it - per-struct file exclusion is enough.

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

1 files changed, 1 insertions, 4 deletions

diff --git a/fs/libfs.c b/fs/libfs.c
index 43dd28031a1a..dd8a074482ac 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -89,7 +89,6 @@ EXPORT_SYMBOL(dcache_dir_close);
 loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
 {
         struct dentry *dentry = file->f_path.dentry;
-        inode_lock(d_inode(dentry));
         switch (whence) {
                 case 1:
                         offset += file->f_pos;
@@ -97,7 +96,6 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
                         if (offset >= 0)
                                 break;
                 default:
-                        inode_unlock(d_inode(dentry));
                         return -EINVAL;
         }
         if (offset != file->f_pos) {
@@ -124,7 +122,6 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
                         spin_unlock(&dentry->d_lock);
                 }
         }
-        inode_unlock(d_inode(dentry));
         return offset;
 }
 EXPORT_SYMBOL(dcache_dir_lseek);
@@ -190,7 +187,7 @@ const struct file_operations simple_dir_operations = {
         .release        = dcache_dir_close,
         .llseek         = dcache_dir_lseek,
         .read           = generic_read_dir,
-        .iterate        = dcache_readdir,
+        .iterate_shared = dcache_readdir,
         .fsync          = noop_fsync,
 };
 EXPORT_SYMBOL(simple_dir_operations);