vserver 2.0-rc4

[linux-2.6.git] / kernel / vserver / proc.c

diff --git a/kernel/vserver/proc.c b/kernel/vserver/proc.c
index 4408810..0d67d76 100644 (file)
--- a/kernel/vserver/proc.c
+++ b/kernel/vserver/proc.c
@@ -3,7 +3,7 @@
  *
  *  Virtual Context Support
  *
- *  Copyright (C) 2003-2004  Herbert Pötzl
+ *  Copyright (C) 2003-2005  Herbert Pötzl
  *
  *  V0.01  basic structure
  *  V0.02  adaptation vs1.3.0
@@ -18,15 +18,20 @@
 #include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/proc_fs.h>
-#include <linux/vserver.h>
-#include <linux/vs_base.h>
+#include <linux/sched.h>
 #include <linux/vs_context.h>
 #include <linux/vs_network.h>
 #include <linux/vs_cvirt.h>
 
+#include <linux/vserver/switch.h>
+
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
+#include "cvirt_proc.h"
+#include "limit_proc.h"
+#include "sched_proc.h"
+#include "vci_config.h"
 
 static struct proc_dir_entry *proc_virtual;
 
@@ -58,9 +63,11 @@ static int proc_virtual_info(int vid, char *buffer)
        return sprintf(buffer,
                "VCIVersion:\t%04x:%04x\n"
                "VCISyscall:\t%d\n"
+               "VCIKernel:\t%08x\n"
                ,VCI_VERSION >> 16
                ,VCI_VERSION & 0xFFFF
                ,__NR_vserver
+               ,vci_kernel_config()
                );
 }
 
@@ -95,13 +102,13 @@ int proc_xid_status (int vid, char *buffer)
                return 0;
        length = sprintf(buffer,
                "UseCnt:\t%d\n"
-               "RefCnt:\t%d\n"
+               "Tasks:\t%d\n"
                "Flags:\t%016llx\n"
                "BCaps:\t%016llx\n"
                "CCaps:\t%016llx\n"
                "Ticks:\t%d\n"
                ,atomic_read(&vxi->vx_usecnt)
-               ,atomic_read(&vxi->vx_refcnt)
+               ,atomic_read(&vxi->vx_tasks)
                ,(unsigned long long)vxi->vx_flags
                ,(unsigned long long)vxi->vx_bcaps
                ,(unsigned long long)vxi->vx_ccaps
@@ -214,9 +221,9 @@ int proc_nid_status (int vid, char *buffer)
                return 0;
        length = sprintf(buffer,
                "UseCnt:\t%d\n"
-               "RefCnt:\t%d\n"
+               "Tasks:\t%d\n"
                ,atomic_read(&nxi->nx_usecnt)
-               ,atomic_read(&nxi->nx_refcnt)
+               ,atomic_read(&nxi->nx_tasks)
                );
        put_nx_info(nxi);
        return length;
@@ -248,7 +255,6 @@ static struct inode *proc_vid_make_inode(struct super_block * sb,
 
        inode->i_uid = 0;
        inode->i_gid = 0;
-       // inode->i_xid = xid;
 out:
        return inode;
 }
@@ -261,10 +267,10 @@ static int proc_vid_revalidate(struct dentry * dentry, struct nameidata *nd)
        vid = inode_vid(inode);
        switch (inode_type(inode) & PROC_VID_MASK) {
                case PROC_XID_INO:
-                       hashed = vx_info_is_hashed(vid);
+                       hashed = xid_is_hashed(vid);
                        break;
                case PROC_NID_INO:
-                       hashed = nx_info_is_hashed(vid);
+                       hashed = nid_is_hashed(vid);
                        break;
        }
        if (hashed)
@@ -273,13 +279,6 @@ static int proc_vid_revalidate(struct dentry * dentry, struct nameidata *nd)
        return 0;
 }
 
-/*
-static int proc_vid_delete_dentry(struct dentry * dentry)
-{
-       return 1;
-}
-*/
-
 
 #define PROC_BLOCK_SIZE (PAGE_SIZE - 1024)
 
@@ -289,7 +288,6 @@ static ssize_t proc_vid_info_read(struct file * file, char * buf,
        struct inode * inode = file->f_dentry->d_inode;
        unsigned long page;
        ssize_t length;
-       ssize_t end;
        int vid;
 
        if (count > PROC_BLOCK_SIZE)
@@ -300,22 +298,11 @@ static ssize_t proc_vid_info_read(struct file * file, char * buf,
        vid = inode_vid(inode);
        length = PROC_I(inode)->op.proc_vid_read(vid, (char*)page);
 
-       if (length < 0) {
-               free_page(page);
-               return length;
-       }
-       /* Static 4kB (or whatever) block capacity */
-       if (*ppos >= length) {
-               free_page(page);
-               return 0;
-       }
-       if (count + *ppos > length)
-               count = length - *ppos;
-       end = count + *ppos;
-       copy_to_user(buf, (char *) page + *ppos, count);
-       *ppos = end;
+       if (length >= 0)
+               length = simple_read_from_buffer(buf, count, ppos,
+                       (char *)page, length);
        free_page(page);
-       return count;
+       return length;
 }
 
 
@@ -330,7 +317,6 @@ static struct file_operations proc_vid_info_file_operations = {
 
 static struct dentry_operations proc_vid_dentry_operations = {
        d_revalidate:   proc_vid_revalidate,
-//     d_delete:       proc_vid_delete_dentry,
 };
 
 
@@ -429,7 +415,6 @@ static struct dentry *proc_vid_lookup(struct inode *dir,
                        return ERR_PTR(-EINVAL);
        }
        inode->i_mode = p->mode;
-//     inode->i_op = &proc_vid_info_inode_operations;
        inode->i_fop = &proc_vid_info_file_operations;
        inode->i_nlink = 1;
        inode->i_flags|=S_IMMUTABLE;
@@ -551,8 +536,6 @@ struct dentry *proc_virtual_lookup(struct inode *dir,
                inode->i_ino = fake_ino(1, PROC_XID_INO);
                inode->i_mode = S_IFLNK|S_IRWXUGO;
                inode->i_uid = inode->i_gid = 0;
-               inode->i_size = 64;
-//             inode->i_op = &proc_current_inode_operations;
                d_add(dentry, inode);
                return NULL;
        }
@@ -563,8 +546,6 @@ struct dentry *proc_virtual_lookup(struct inode *dir,
                inode->i_fop = &proc_vid_info_file_operations;
                PROC_I(inode)->op.proc_vid_read = proc_virtual_info;
                inode->i_mode = S_IFREG|S_IRUGO;
-//             inode->i_size = 64;
-//             inode->i_op = &proc_current_inode_operations;
                d_add(dentry, inode);
                return NULL;
        }
@@ -621,8 +602,6 @@ struct dentry *proc_vnet_lookup(struct inode *dir,
                inode->i_ino = fake_ino(1, PROC_NID_INO);
                inode->i_mode = S_IFLNK|S_IRWXUGO;
                inode->i_uid = inode->i_gid = 0;
-               inode->i_size = 64;
-//             inode->i_op = &proc_current_inode_operations;
                d_add(dentry, inode);
                return NULL;
        }
@@ -633,8 +612,6 @@ struct dentry *proc_vnet_lookup(struct inode *dir,
                inode->i_fop = &proc_vid_info_file_operations;
                PROC_I(inode)->op.proc_vid_read = proc_vnet_info;
                inode->i_mode = S_IFREG|S_IRUGO;
-//             inode->i_size = 64;
-//             inode->i_op = &proc_current_inode_operations;
                d_add(dentry, inode);
                return NULL;
        }
@@ -708,7 +685,7 @@ int proc_virtual_readdir(struct file * filp,
                        filp->f_pos++;
                        /* fall through */
                case 3:
-                       if (current->xid > 1) {
+                       if (vx_current_xid() > 1) {
                                ino = fake_ino(1, PROC_XID_INO);
                                if (filldir(dirent, "current", 7,
                                        filp->f_pos, ino, DT_LNK) < 0)
@@ -776,7 +753,7 @@ int proc_vnet_readdir(struct file * filp,
                        filp->f_pos++;
                        /* fall through */
                case 3:
-                       if (current->xid > 1) {
+                       if (vx_current_xid() > 1) {
                                ino = fake_ino(1, PROC_NID_INO);
                                if (filldir(dirent, "current", 7,
                                        filp->f_pos, ino, DT_LNK) < 0)
@@ -824,7 +801,7 @@ void proc_vx_init(void)
        }
        proc_virtual = ent;
 
-       ent = proc_mkdir("vnet", 0);
+       ent = proc_mkdir("virtnet", 0);
        if (ent) {
                ent->proc_fops = &proc_vnet_dir_operations;
                ent->proc_iops = &proc_vnet_dir_inode_operations;
@@ -838,9 +815,10 @@ void proc_vx_init(void)
 /* per pid info */
 
 
-char *task_vx_info(struct task_struct *p, char *buffer)
+int proc_pid_vx_info(struct task_struct *p, char *buffer)
 {
        struct vx_info *vxi;
+       char * orig = buffer;
 
        buffer += sprintf (buffer,"XID:\t%d\n", vx_task_xid(p));
        vxi = task_get_vx_info(p);
@@ -855,20 +833,14 @@ char *task_vx_info(struct task_struct *p, char *buffer)
                        ,vxi->vx_initpid);
        }
        put_vx_info(vxi);
-       return buffer;
-}
-
-int proc_pid_vx_info(struct task_struct *p, char *buffer)
-{
-       char * orig = buffer;
-
-       buffer = task_vx_info(p, buffer);
        return buffer - orig;
 }
 
-char *task_nx_info(struct task_struct *p, char *buffer)
+
+int proc_pid_nx_info(struct task_struct *p, char *buffer)
 {
        struct nx_info *nxi;
+       char * orig = buffer;
 
        buffer += sprintf (buffer,"NID:\t%d\n", nx_task_nid(p));
        nxi = task_get_nx_info(p);
@@ -886,14 +858,6 @@ char *task_nx_info(struct task_struct *p, char *buffer)
                        ,NIPQUAD(nxi->v4_bcast));
        }
        put_nx_info(nxi);
-       return buffer;
-}
-
-int proc_pid_nx_info(struct task_struct *p, char *buffer)
-{
-       char * orig = buffer;
-
-       buffer = task_nx_info(p, buffer);
        return buffer - orig;
 }