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switch dentry_open() to struct path, make it grab references itself

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-06-26 21:58:53 +04:00
parent bf349a4470
commit 765927b2d5
15 changed files with 106 additions and 151 deletions
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13
fs/exportfs/expfs.c
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@ -19,19 +19,19 @@
#define dprintk(fmt, args...) do{}while(0)
static int get_name(struct vfsmount *mnt, struct dentry *dentry, char *name,
struct dentry *child);
static int get_name(const struct path *path, char *name, struct dentry *child);
static int exportfs_get_name(struct vfsmount *mnt, struct dentry *dir,
char *name, struct dentry *child)
{
const struct export_operations *nop = dir->d_sb->s_export_op;
struct path path = {.mnt = mnt, .dentry = dir};
if (nop->get_name)
return nop->get_name(dir, name, child);
else
return get_name(mnt, dir, name, child);
return get_name(&path, name, child);
}
/*
@ -249,11 +249,10 @@ static int filldir_one(void * __buf, const char * name, int len,
* calls readdir on the parent until it finds an entry with
* the same inode number as the child, and returns that.
*/
static int get_name(struct vfsmount *mnt, struct dentry *dentry,
char *name, struct dentry *child)
static int get_name(const struct path *path, char *name, struct dentry *child)
{
const struct cred *cred = current_cred();
struct inode *dir = dentry->d_inode;
struct inode *dir = path->dentry->d_inode;
int error;
struct file *file;
struct getdents_callback buffer;
@ -267,7 +266,7 @@ static int get_name(struct vfsmount *mnt, struct dentry *dentry,
/*
* Open the directory ...
*/
file = dentry_open(dget(dentry), mntget(mnt), O_RDONLY, cred);
file = dentry_open(path, O_RDONLY, cred);
error = PTR_ERR(file);
if (IS_ERR(file))
goto out;