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[PATCH] VFS: change struct file to use struct path

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This patch changes struct file to use struct path instead of having
independent pointers to struct dentry and struct vfsmount, and converts all
users of f_{dentry,vfsmnt} in fs/ to use f_path.{dentry,mnt}.

Additionally, it adds two #define's to make the transition easier for users of
the f_dentry and f_vfsmnt.

Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Josef "Jeff" Sipek
2006-12-08 02:36:35 -08:00
committed by Linus Torvalds
parent b65d34fd46
commit 0f7fc9e4d0
32 changed files with 141 additions and 139 deletions
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10
include/linux/fs.h
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@@ -269,6 +269,7 @@ extern int dir_notify_enable;
#include <linux/types.h>
#include <linux/kdev_t.h>
#include <linux/dcache.h>
#include <linux/namei.h>
#include <linux/stat.h>
#include <linux/cache.h>
#include <linux/kobject.h>
@@ -711,8 +712,9 @@ struct file {
struct list_head fu_list;
struct rcu_head fu_rcuhead;
} f_u;
struct dentry *f_dentry;
struct vfsmount *f_vfsmnt;
struct path f_path;
#define f_dentry f_path.dentry
#define f_vfsmnt f_path.mnt
const struct file_operations *f_op;
atomic_t f_count;
unsigned int f_flags;
@@ -1224,7 +1226,7 @@ extern void touch_atime(struct vfsmount *mnt, struct dentry *dentry);
static inline void file_accessed(struct file *file)
{
if (!(file->f_flags & O_NOATIME))
touch_atime(file->f_vfsmnt, file->f_dentry);
touch_atime(file->f_path.mnt, file->f_path.dentry);
}
int sync_inode(struct inode *inode, struct writeback_control *wbc);
@@ -1615,7 +1617,7 @@ static inline void put_write_access(struct inode * inode)
static inline void allow_write_access(struct file *file)
{
if (file)
atomic_inc(&file->f_dentry->d_inode->i_writecount);
atomic_inc(&file->f_path.dentry->d_inode->i_writecount);
}
extern int do_pipe(int *);
extern struct file *create_read_pipe(struct file *f);