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 unsigned long obd_memory;
  17
  18 #define OBD_ALLOC(ptr, size)                                    \
  19 do {                                                            \
  20         long s = (size);                                        \
  21         (ptr) = kmalloc(s, GFP_KERNEL);                         \
  22         if ((ptr) == NULL) {                                    \
  23                 CERROR("kernel malloc of %ld bytes failed at "  \
  24                        "%s:%d\n", s, __FILE__, __LINE__);       \
  25         } else {                                                \
  26                 memset((ptr), 0, s);                            \
  27                 obd_memory += s;                                \
  28         }                                                       \
  29         CDEBUG(D_MALLOC, "kmalloced: %ld at %x (tot %ld).\n",   \
  30                s, (int)(ptr), obd_memory);                      \
  31 } while (0)
  32
  33 #define OBD_FREE(ptr, size)                                     \
  34 do {                                                            \
  35         int s = (size);                                         \
  36         kfree((ptr));                                           \
  37         CDEBUG(D_MALLOC, "kfreed: %d at %x (tot %ld).\n",       \
  38                s, (int)(ptr), obd_memory);                      \
  39         obd_memory -= s;                                        \
  40 } while (0)
  41
  42 #endif