From: Ian Kent <raven@themaw.net>
Date: Fri, 14 Jan 2011 18:46:24 +0000 (+0000)
Subject: autofs4: Clean up autofs4_free_ino()
X-Git-Tag: 2.1b_release~5506^2~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6651149371b842715906311b4631b8489cebf7e8;p=platform%2Fkernel%2Fkernel-mfld-blackbay.git

autofs4: Clean up autofs4_free_ino()

When this function is called the local reference count does't need to
be updated since the dentry is going away and dput definitely must
not be called here.

Also the autofs info struct field inode isn't used so remove it.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 427c357..3ecd2e2 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -45,7 +45,6 @@ struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
 
 	if (!reinit) {
 		ino->flags = 0;
-		ino->inode = NULL;
 		ino->dentry = NULL;
 		ino->size = 0;
 		INIT_LIST_HEAD(&ino->active);
@@ -76,19 +75,8 @@ struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
 
 void autofs4_free_ino(struct autofs_info *ino)
 {
-	struct autofs_info *p_ino;
-
 	if (ino->dentry) {
 		ino->dentry->d_fsdata = NULL;
-		if (ino->dentry->d_inode) {
-			struct dentry *parent = ino->dentry->d_parent;
-			if (atomic_dec_and_test(&ino->count)) {
-				p_ino = autofs4_dentry_ino(parent);
-				if (p_ino && parent != ino->dentry)
-					atomic_dec(&p_ino->count);
-			}
-			dput(ino->dentry);
-		}
 		ino->dentry = NULL;
 	}
 	if (ino->free)
@@ -390,7 +378,6 @@ struct inode *autofs4_get_inode(struct super_block *sb,
 	if (inode == NULL)
 		return NULL;
 
-	inf->inode = inode;
 	inode->i_mode = inf->mode;
 	if (sb->s_root) {
 		inode->i_uid = sb->s_root->d_inode->i_uid;
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 62c1229..8315565 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -151,11 +151,8 @@ void autofs4_dentry_release(struct dentry *de)
 	DPRINTK("releasing %p", de);
 
 	inf = autofs4_dentry_ino(de);
-	de->d_fsdata = NULL;
-
 	if (inf) {
 		struct autofs_sb_info *sbi = autofs4_sbi(de->d_sb);
-
 		if (sbi) {
 			spin_lock(&sbi->lookup_lock);
 			if (!list_empty(&inf->active))
@@ -164,10 +161,6 @@ void autofs4_dentry_release(struct dentry *de)
 				list_del(&inf->expiring);
 			spin_unlock(&sbi->lookup_lock);
 		}
-
-		inf->dentry = NULL;
-		inf->inode = NULL;
-
 		autofs4_free_ino(inf);
 	}
 }
@@ -583,7 +576,6 @@ static int autofs4_dir_symlink(struct inode *dir,
 	p_ino = autofs4_dentry_ino(dentry->d_parent);
 	if (p_ino && dentry->d_parent != dentry)
 		atomic_inc(&p_ino->count);
-	ino->inode = inode;
 
 	ino->u.symlink = cp;
 	dir->i_mtime = CURRENT_TIME;
@@ -713,7 +705,6 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	p_ino = autofs4_dentry_ino(dentry->d_parent);
 	if (p_ino && dentry->d_parent != dentry)
 		atomic_inc(&p_ino->count);
-	ino->inode = inode;
 	inc_nlink(dir);
 	dir->i_mtime = CURRENT_TIME;