Add the zpool and filesystem versions

[zfs.git] / module / zfs / zpl_inode.c

diff --git a/module/zfs/zpl_inode.c b/module/zfs/zpl_inode.c
index 637a7dc..888dc17 100644 (file)
--- a/module/zfs/zpl_inode.c
+++ b/module/zfs/zpl_inode.c
@@ -245,8 +245,33 @@ out:
 static void *
 zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-       (void) zfs_follow_link(dentry, nd);
-       return NULL;
+       struct inode *ip = dentry->d_inode;
+       struct iovec iov;
+       uio_t uio;
+       char *link;
+       cred_t *cr;
+       int error;
+
+       cr = (cred_t *)get_current_cred();
+
+       iov.iov_len = MAXPATHLEN;
+       iov.iov_base = link = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
+
+       uio.uio_iov = &iov;
+       uio.uio_iovcnt = 1;
+       uio.uio_resid = (MAXPATHLEN - 1);
+       uio.uio_segflg = UIO_SYSSPACE;
+
+       error = -zfs_readlink(ip, &uio, cr);
+       if (error) {
+               kmem_free(link, MAXPATHLEN);
+               nd_set_link(nd, ERR_PTR(error));
+       } else {
+               nd_set_link(nd, link);
+       }
+
+       put_cred(cr);
+       return (NULL);
 }
 
 static void
@@ -256,7 +281,7 @@ zpl_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
 
        link = nd_get_link(nd);
        if (!IS_ERR(link))
-               kmem_free(link, MAXPATHLEN + 1);
+               kmem_free(link, MAXPATHLEN);
 }
 
 static int