autofs4: keep symlink body in inode->i_private

gets rid of all ->free()/->u.symlink machinery in autofs; we simply
keep symlink bodies in inode->i_private and free them in ->evict_inode().

Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 7 insertions, 20 deletions

diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 9e1a9dad23e1..cf8abc793d50 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -22,14 +22,6 @@
 #include "autofs_i.h"
 #include <linux/module.h>
 
-static void ino_lnkfree(struct autofs_info *ino)
-{
-        if (ino->u.symlink) {
-                kfree(ino->u.symlink);
-                ino->u.symlink = NULL;
-        }
-}
-
 struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
                                      struct autofs_sb_info *sbi, mode_t mode)
 {
@@ -60,16 +52,6 @@ struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
 
         ino->sbi = sbi;
 
-        if (reinit && ino->free)
-                (ino->free)(ino);
-
-        memset(&ino->u, 0, sizeof(ino->u));
-
-        ino->free = NULL;
-
-        if (S_ISLNK(mode))
-                ino->free = ino_lnkfree;
-
         return ino;
 }
 
@@ -79,8 +61,6 @@ void autofs4_free_ino(struct autofs_info *ino)
                 ino->dentry->d_fsdata = NULL;
                 ino->dentry = NULL;
         }
-        if (ino->free)
-                (ino->free)(ino);
         kfree(ino);
 }
 
@@ -136,9 +116,16 @@ static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt)
         return 0;
 }
 
+static void autofs4_evict_inode(struct inode *inode)
+{
+        end_writeback(inode);
+        kfree(inode->i_private);
+}
+
 static const struct super_operations autofs4_sops = {
         .statfs         = simple_statfs,
         .show_options   = autofs4_show_options,
+        .evict_inode    = autofs4_evict_inode,
 };
 
 enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto,