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authorAl Viro <viro@zeniv.linux.org.uk>2009-12-23 00:35:54 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2010-01-14 09:05:25 -0500
commit204f2f0e82ec5cecbe671cfe2b132146929213d3 (patch)
tree0f57a312898ba3d910289fbee5fcd84e073a06da /fs/9p
parent86acdca1b63e6890540fa19495cfc708beff3d8b (diff)
Kill 9p readlink()
For symlinks generic_readlink() will work just fine and for directories we don't want ->readlink() at all. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/vfs_inode.c41
1 files changed, 1 insertions, 40 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 18f74ec4dce..9d03d1ebca6 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1001,44 +1001,6 @@ done:
}
/**
- * v9fs_vfs_readlink - read a symlink's location
- * @dentry: dentry for symlink
- * @buffer: buffer to load symlink location into
- * @buflen: length of buffer
- *
- */
-
-static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer,
- int buflen)
-{
- int retval;
- int ret;
- char *link = __getname();
-
- if (unlikely(!link))
- return -ENOMEM;
-
- if (buflen > PATH_MAX)
- buflen = PATH_MAX;
-
- P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_name.name,
- dentry);
-
- retval = v9fs_readlink(dentry, link, buflen);
-
- if (retval > 0) {
- if ((ret = copy_to_user(buffer, link, retval)) != 0) {
- P9_DPRINTK(P9_DEBUG_ERROR,
- "problem copying to user: %d\n", ret);
- retval = ret;
- }
- }
-
- __putname(link);
- return retval;
-}
-
-/**
* v9fs_vfs_follow_link - follow a symlink path
* @dentry: dentry for symlink
* @nd: nameidata
@@ -1230,7 +1192,6 @@ static const struct inode_operations v9fs_dir_inode_operations_ext = {
.rmdir = v9fs_vfs_rmdir,
.mknod = v9fs_vfs_mknod,
.rename = v9fs_vfs_rename,
- .readlink = v9fs_vfs_readlink,
.getattr = v9fs_vfs_getattr,
.setattr = v9fs_vfs_setattr,
};
@@ -1253,7 +1214,7 @@ static const struct inode_operations v9fs_file_inode_operations = {
};
static const struct inode_operations v9fs_symlink_inode_operations = {
- .readlink = v9fs_vfs_readlink,
+ .readlink = generic_readlink,
.follow_link = v9fs_vfs_follow_link,
.put_link = v9fs_vfs_put_link,
.getattr = v9fs_vfs_getattr,