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namei: store inode in nd->stack[]

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-05-07 09:21:14 -04:00
parent 254cf58212
commit 237d8b327a
1 changed files with 5 additions and 3 deletions
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8
fs/namei.c
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@ -507,6 +507,7 @@ struct nameidata {
struct path link;
void *cookie;
const char *name;
struct inode *inode;
} *stack, internal[EMBEDDED_LEVELS];
};
@ -746,7 +747,7 @@ void nd_jump_link(struct path *path)
static inline void put_link(struct nameidata *nd)
{
struct saved *last = nd->stack + --nd->depth;
struct inode *inode = last->link.dentry->d_inode;
struct inode *inode = last->inode;
if (last->cookie && inode->i_op->put_link)
inode->i_op->put_link(last->link.dentry, last->cookie);
path_put(&last->link);
@ -779,7 +780,7 @@ static inline int may_follow_link(struct nameidata *nd)
return 0;
/* Allowed if owner and follower match. */
inode = nd->stack[0].link.dentry->d_inode;
inode = nd->stack[0].inode;
if (uid_eq(current_cred()->fsuid, inode->i_uid))
return 0;
@ -870,7 +871,7 @@ const char *get_link(struct nameidata *nd)
{
struct saved *last = nd->stack + nd->depth - 1;
struct dentry *dentry = last->link.dentry;
struct inode *inode = dentry->d_inode;
struct inode *inode = last->inode;
int error;
const char *res;
@ -1569,6 +1570,7 @@ static int pick_link(struct nameidata *nd, struct path *link, unsigned seq)
last = nd->stack + nd->depth++;
last->link = *link;
last->cookie = NULL;
last->inode = d_backing_inode(link->dentry);
return 1;
}