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path: root/fs/autofs/inode.c
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Diffstat (limited to 'fs/autofs/inode.c')
-rw-r--r--fs/autofs/inode.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
index 45f5992a0957..708bdb89fea1 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -52,10 +52,7 @@ out_kill_sb:
kill_anon_super(sb);
}
-static void autofs_read_inode(struct inode *inode);
-
static const struct super_operations autofs_sops = {
- .read_inode = autofs_read_inode,
.statfs = simple_statfs,
};
@@ -164,7 +161,9 @@ int autofs_fill_super(struct super_block *s, void *data, int silent)
s->s_time_gran = 1;
sbi->sb = s;
- root_inode = iget(s, AUTOFS_ROOT_INO);
+ root_inode = autofs_iget(s, AUTOFS_ROOT_INO);
+ if (IS_ERR(root_inode))
+ goto fail_free;
root = d_alloc_root(root_inode);
pipe = NULL;
@@ -230,11 +229,17 @@ fail_unlock:
return -EINVAL;
}
-static void autofs_read_inode(struct inode *inode)
+struct inode *autofs_iget(struct super_block *sb, unsigned long ino)
{
- ino_t ino = inode->i_ino;
unsigned int n;
- struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(sb);
+ struct inode *inode;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ if (!(inode->i_state & I_NEW))
+ return inode;
/* Initialize to the default case (stub directory) */
@@ -250,7 +255,7 @@ static void autofs_read_inode(struct inode *inode)
inode->i_op = &autofs_root_inode_operations;
inode->i_fop = &autofs_root_operations;
inode->i_uid = inode->i_gid = 0; /* Changed in read_super */
- return;
+ goto done;
}
inode->i_uid = inode->i_sb->s_root->d_inode->i_uid;
@@ -263,7 +268,7 @@ static void autofs_read_inode(struct inode *inode)
n = ino - AUTOFS_FIRST_SYMLINK;
if (n >= AUTOFS_MAX_SYMLINKS || !test_bit(n,sbi->symlink_bitmap)) {
printk("autofs: Looking for bad symlink inode %u\n", (unsigned int) ino);
- return;
+ goto done;
}
inode->i_op = &autofs_symlink_inode_operations;
@@ -275,4 +280,8 @@ static void autofs_read_inode(struct inode *inode)
inode->i_size = sl->len;
inode->i_nlink = 1;
}
+
+done:
+ unlock_new_inode(inode);
+ return inode;
}