lustre/include/linux/obd_support.h

   1 #ifndef _OBD_SUPPORT
   2 #define _OBD_SUPPORT
   3 /*
   4  * Copyright (C) 2001  Cluster File Systems, Inc.
   5  *
   6  * This code is issued under the GNU General Public License.
   7  * See the file COPYING in this distribution
   8  */
   9
  10 #include <linux/autoconf.h>
  11 #include <linux/slab.h>
  12 #include <linux/kp30.h>
  13
  14 /* global variables */
  15 extern int obd_debug_level;
  16 extern int obd_print_entry;
  17 extern unsigned long obd_memory;
  18
  19 #define OBD_ALLOC(ptr, size)                                    \
  20 do {                                                            \
  21         (ptr) = kmalloc((unsigned long)(size), GFP_KERNEL);     \
  22         if ((ptr) == NULL) {                                    \
  23                 CERROR("kernel malloc failed at %s:%d\n",       \
  24                        __FILE__, __LINE__);                     \
  25         } else {                                                \
  26                 memset((ptr), 0, (size));                       \
  27                 obd_memory += (size);                           \
  28         }                                                       \
  29         CDEBUG(D_MALLOC, "kmalloced: %ld at %x (tot %ld).\n",   \
  30                (long)(size), (int)(ptr), obd_memory);           \
  31 } while (0)
  32
  33 #define OBD_FREE(ptr, size)                                  \
  34 do {                                                         \
  35         kfree((ptr));                                        \
  36         CDEBUG(D_MALLOC, "kfreed: %d at %x (tot %ld).\n",    \
  37                (int)(size), (int)(ptr), obd_memory);         \
  38         obd_memory -= (size);                                \
  39 } while (0)
  40
  41 #endif