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jfs: switch to simple_follow_link()

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Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-05-02 10:41:20 -04:00
parent 2e03f3ea7a
commit ad476fedc7
3 changed files with 5 additions and 13 deletions
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3
fs/jfs/inode.c
View File

@ -63,11 +63,12 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
inode->i_mapping->a_ops = &jfs_aops;
} else {
inode->i_op = &jfs_fast_symlink_inode_operations;
inode->i_link = JFS_IP(inode)->i_inline;
/*
* The inline data should be null-terminated, but
* don't let on-disk corruption crash the kernel
*/
JFS_IP(inode)->i_inline[inode->i_size] = '\0';
inode->i_link[inode->i_size] = '\0';
}
} else {
inode->i_op = &jfs_file_inode_operations;

5
fs/jfs/namei.c
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@ -880,7 +880,6 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
int ssize; /* source pathname size */
struct btstack btstack;
struct inode *ip = d_inode(dentry);
unchar *i_fastsymlink;
s64 xlen = 0;
int bmask = 0, xsize;
s64 xaddr;
@ -946,8 +945,8 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
if (ssize <= IDATASIZE) {
ip->i_op = &jfs_fast_symlink_inode_operations;
i_fastsymlink = JFS_IP(ip)->i_inline;
memcpy(i_fastsymlink, name, ssize);
ip->i_link = JFS_IP(ip)->i_inline;
memcpy(ip->i_link, name, ssize);
ip->i_size = ssize - 1;
/*

10
fs/jfs/symlink.c
View File

@ -17,21 +17,13 @@
*/
#include <linux/fs.h>
#include <linux/namei.h>
#include "jfs_incore.h"
#include "jfs_inode.h"
#include "jfs_xattr.h"
static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *s = JFS_IP(d_inode(dentry))->i_inline;
nd_set_link(nd, s);
return NULL;
}
const struct inode_operations jfs_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = jfs_follow_link,
.follow_link = simple_follow_link,
.setattr = jfs_setattr,
.setxattr = jfs_setxattr,
.getxattr = jfs_getxattr,