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[PATCH] proc: Replace proc_inode.type with proc_inode.fd 

The sole renaming use of proc_inode.type is to discover the file descriptor
number, so just store the file descriptor number and don't wory about
processing this field.  This removes any /proc limits on the maximum number of
file descriptors, and clears the path to make the hard coded /proc inode
numbers go away.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman 2006-06-26 00:25:44 -07:00 committed by Linus Torvalds
parent 87bfbf679f
commit aed7a6c476
4 changed files with 7 additions and 7 deletions
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6
fs/proc/base.c
View File

@ -297,7 +297,7 @@ static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsm
struct task_struct *task = proc_task(inode);
struct files_struct *files;
struct file *file;
int fd = proc_type(inode) - PROC_TID_FD_DIR;
int fd = proc_fd(inode);
files = get_files_struct(task);
if (files) {
@ -1368,7 +1368,6 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st
*/
get_task_struct(task);
ei->task = task;
ei->type = ino;
inode->i_uid = 0;
inode->i_gid = 0;
if (task_dumpable(task)) {
@ -1418,7 +1417,7 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = dentry->d_inode;
struct task_struct *task = proc_task(inode);
int fd = proc_type(inode) - PROC_TID_FD_DIR;
int fd = proc_fd(inode);
struct files_struct *files;
files = get_files_struct(task);
@ -1525,6 +1524,7 @@ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry,
if (!inode)
goto out;
ei = PROC_I(inode);
ei->fd = fd;
files = get_files_struct(task);
if (!files)
goto out_unlock;

2
fs/proc/inode.c
View File

@ -95,7 +95,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb)
if (!ei)
return NULL;
ei->task = NULL;
ei->type = 0;
ei->fd = 0;
ei->op.proc_get_link = NULL;
ei->pde = NULL;
inode = &ei->vfs_inode;

4
fs/proc/internal.h
View File

@ -46,7 +46,7 @@ static inline struct task_struct *proc_task(struct inode *inode)
return PROC_I(inode)->task;
}
static inline int proc_type(struct inode *inode)
static inline int proc_fd(struct inode *inode)
{
return PROC_I(inode)->type;
return PROC_I(inode)->fd;
}

2
include/linux/proc_fs.h
View File

@ -249,7 +249,7 @@ extern void kclist_add(struct kcore_list *, void *, size_t);
struct proc_inode {
struct task_struct *task;
int type;
int fd;
union {
int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
int (*proc_read)(struct task_struct *task, char *page);