This commit was manufactured by cvs2svn to create tag

[linux-2.6.git] / fs / open.c

diff --git a/fs/open.c b/fs/open.c
index 66a77f5..07f7124 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -22,6 +22,12 @@
 #include <asm/uaccess.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>
+#include <linux/vs_base.h>
+#include <linux/vs_limit.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vserver/xid.h>
+
+#include <asm/unistd.h>
 
 int vfs_statfs(struct super_block *sb, struct kstatfs *buf)
 {
@@ -38,6 +44,8 @@ int vfs_statfs(struct super_block *sb, struct kstatfs *buf)
                        if (retval == 0 && buf->f_frsize == 0)
                                buf->f_frsize = buf->f_bsize;
                }
+               if (!vx_check(0, VX_ADMIN|VX_WATCH))
+                       vx_vsi_statfs(sb, buf);
        }
        return retval;
 }
@@ -335,7 +343,7 @@ asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length)
 }
 #endif
 
-#if !(defined(__alpha__) || defined(__ia64__))
+#ifdef __ARCH_WANT_SYS_UTIME
 
 /*
  * sys_utime() can be implemented in user-level using sys_utimes().
@@ -605,6 +613,9 @@ asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
        dentry = file->f_dentry;
        inode = dentry->d_inode;
 
+       err = -EPERM;
+       if (IS_BARRIER(inode) && !vx_check(0, VX_ADMIN))
+               goto out_putf;
        err = -EROFS;
        if (IS_RDONLY(inode))
                goto out_putf;
@@ -637,6 +648,10 @@ asmlinkage long sys_chmod(const char __user * filename, mode_t mode)
                goto out;
        inode = nd.dentry->d_inode;
 
+       error = -EPERM;
+       if (IS_BARRIER(inode) && !vx_check(0, VX_ADMIN))
+               goto dput_and_out;
+
        error = -EROFS;
        if (IS_RDONLY(inode))
                goto dput_and_out;
@@ -676,14 +691,15 @@ static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
        error = -EPERM;
        if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
                goto out;
+
        newattrs.ia_valid =  ATTR_CTIME;
        if (user != (uid_t) -1) {
                newattrs.ia_valid |= ATTR_UID;
-               newattrs.ia_uid = user;
+               newattrs.ia_uid = vx_map_uid(user);
        }
        if (group != (gid_t) -1) {
                newattrs.ia_valid |= ATTR_GID;
-               newattrs.ia_gid = group;
+               newattrs.ia_gid = vx_map_gid(group);
        }
        if (!S_ISDIR(inode->i_mode))
                newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID;
@@ -788,7 +804,6 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
        }
 
        f->f_mapping = inode->i_mapping;
-       file_ra_state_init(&f->f_ra, f->f_mapping);
        f->f_dentry = dentry;
        f->f_vfsmnt = mnt;
        f->f_pos = 0;
@@ -802,12 +817,13 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
        }
        f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
 
+       file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping);
+
        /* NB: we're sure to have correct a_ops only after f_op->open */
        if (f->f_flags & O_DIRECT) {
-               if (!f->f_mapping || !f->f_mapping->a_ops ||
-                       !f->f_mapping->a_ops->direct_IO) {
-                               fput(f);
-                               f = ERR_PTR(-EINVAL);
+               if (!f->f_mapping->a_ops || !f->f_mapping->a_ops->direct_IO) {
+                       fput(f);
+                       f = ERR_PTR(-EINVAL);
                }
        }
 
@@ -878,6 +894,7 @@ repeat:
        FD_SET(fd, files->open_fds);
        FD_CLR(fd, files->close_on_exec);
        files->next_fd = fd + 1;
+       vx_openfd_inc(fd);
 #if 1
        /* Sanity check */
        if (files->fd[fd] != NULL) {
@@ -899,6 +916,7 @@ static inline void __put_unused_fd(struct files_struct *files, unsigned int fd)
        __FD_CLR(fd, files->open_fds);
        if (fd < files->next_fd)
                files->next_fd = fd;
+       vx_openfd_dec(fd);
 }
 
 void fastcall put_unused_fd(unsigned int fd)
@@ -965,7 +983,6 @@ out_error:
        fd = error;
        goto out;
 }
-EXPORT_SYMBOL_GPL(sys_open);
 
 #ifndef __alpha__
 
@@ -1039,7 +1056,6 @@ out_unlock:
        return -EBADF;
 }
 
-EXPORT_SYMBOL(sys_close);
 
 /*
  * This routine simulates a hangup on the tty, to arrange that users