AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

freevxfs: switch to simple_follow_link()

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-05-02 10:43:25 -04:00
parent ad476fedc7
commit df64c082ef
3 changed files with 5 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/freevxfs/vxfs_extern.h
View File

@ -50,9 +50,6 @@ extern daddr_t vxfs_bmap1(struct inode *, long);
/* vxfs_fshead.c */
extern int vxfs_read_fshead(struct super_block *);
/* vxfs_immed.c */
extern const struct inode_operations vxfs_immed_symlink_iops;
/* vxfs_inode.c */
extern const struct address_space_operations vxfs_immed_aops;
extern struct kmem_cache *vxfs_inode_cachep;

34
fs/freevxfs/vxfs_immed.c
View File

@ -32,28 +32,14 @@
*/
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/namei.h>
#include "vxfs.h"
#include "vxfs_extern.h"
#include "vxfs_inode.h"
static void * vxfs_immed_follow_link(struct dentry *, struct nameidata *);
static int vxfs_immed_readpage(struct file *, struct page *);
/*
* Inode operations for immed symlinks.
*
* Unliked all other operations we do not go through the pagecache,
* but do all work directly on the inode.
*/
const struct inode_operations vxfs_immed_symlink_iops = {
.readlink = generic_readlink,
.follow_link = vxfs_immed_follow_link,
};
/*
* Address space operations for immed files and directories.
*/
@ -61,26 +47,6 @@ const struct address_space_operations vxfs_immed_aops = {
.readpage = vxfs_immed_readpage,
};
/**
* vxfs_immed_follow_link - follow immed symlink
* @dp: dentry for the link
* @np: pathname lookup data for the current path walk
*
* Description:
* vxfs_immed_follow_link restarts the pathname lookup with
* the data obtained from @dp.
*
* Returns:
* Zero on success, else a negative error code.
*/
static void *
vxfs_immed_follow_link(struct dentry *dp, struct nameidata *np)
{
struct vxfs_inode_info *vip = VXFS_INO(d_inode(dp));
nd_set_link(np, vip->vii_immed.vi_immed);
return NULL;
}
/**
* vxfs_immed_readpage - read part of an immed inode into pagecache
* @file: file context (unused)

7
fs/freevxfs/vxfs_inode.c
View File

@ -35,6 +35,7 @@
#include <linux/pagemap.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/namei.h>
#include "vxfs.h"
#include "vxfs_inode.h"
@ -327,8 +328,10 @@ vxfs_iget(struct super_block *sbp, ino_t ino)
ip->i_op = &page_symlink_inode_operations;
ip->i_mapping->a_ops = &vxfs_aops;
} else {
ip->i_op = &vxfs_immed_symlink_iops;
vip->vii_immed.vi_immed[ip->i_size] = '\0';
ip->i_op = &simple_symlink_inode_operations;
ip->i_link = vip->vii_immed.vi_immed;
nd_terminate_link(ip->i_link, ip->i_size,
sizeof(vip->vii_immed.vi_immed) - 1);
}
} else
init_special_inode(ip, ip->i_mode, old_decode_dev(vip->vii_rdev));