This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / linux / vserver / limit_int.h

diff --git a/include/linux/vserver/limit_int.h b/include/linux/vserver/limit_int.h
new file mode 100644 (file)
index 0000000..a48d242
--- /dev/null
+++ b/include/linux/vserver/limit_int.h
@@ -0,0 +1,76 @@
+#ifndef _VX_LIMIT_INT_H
+#define _VX_LIMIT_INT_H
+
+
+#ifdef __KERNEL__
+
+#define VXD_RCRES(r)   VXD_CBIT(cres, (r))
+#define VXD_RLIMIT(r)  VXD_CBIT(limit, (r))
+
+extern const char *vlimit_name[NUM_LIMITS];
+
+static inline void __vx_acc_cres(struct vx_info *vxi,
+       int res, int dir, void *_data, char *_file, int _line)
+{
+       if (VXD_RCRES(res))
+               vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5d%s (%p)",
+                       (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
+                       (vxi ? atomic_read(&vxi->limit.rcur[res]) : 0),
+                       (dir > 0) ? "++" : "--", _data, _file, _line);
+       if (!vxi)
+               return;
+
+       if (dir > 0)
+               atomic_inc(&vxi->limit.rcur[res]);
+       else
+               atomic_dec(&vxi->limit.rcur[res]);
+}
+
+static inline void __vx_add_cres(struct vx_info *vxi,
+       int res, int amount, void *_data, char *_file, int _line)
+{
+       if (VXD_RCRES(res))
+               vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5d += %5d (%p)",
+                       (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
+                       (vxi ? atomic_read(&vxi->limit.rcur[res]) : 0),
+                       amount, _data, _file, _line);
+       if (amount == 0)
+               return;
+       if (!vxi)
+               return;
+       atomic_add(amount, &vxi->limit.rcur[res]);
+}
+
+static inline int __vx_cres_avail(struct vx_info *vxi,
+               int res, int num, char *_file, int _line)
+{
+       unsigned long value;
+
+       if (VXD_RLIMIT(res))
+               vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d",
+                       (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
+                       (vxi ? vxi->limit.rlim[res] : 1),
+                       (vxi ? atomic_read(&vxi->limit.rcur[res]) : 0),
+                       num, _file, _line);
+       if (num == 0)
+               return 1;
+       if (!vxi)
+               return 1;
+
+       value = atomic_read(&vxi->limit.rcur[res]);
+
+       if (value > vxi->limit.rmax[res])
+               vxi->limit.rmax[res] = value;
+
+       if (vxi->limit.rlim[res] == RLIM_INFINITY)
+               return 1;
+
+       if (value + num <= vxi->limit.rlim[res])
+               return 1;
+
+       atomic_inc(&vxi->limit.lhit[res]);
+       return 0;
+}
+
+#endif /* __KERNEL__ */
+#endif /* _VX_LIMIT_H */