wrapper/vzalloc.h

   1 #ifndef _LTTNG_WRAPPER_VZALLOC_H
   2 #define _LTTNG_WRAPPER_VZALLOC_H
   3
   4 /*
   5  * wrapper/vzalloc.h
   6  *
   7  * Copyright (C) 2015 Michael Jeanson <mjeanson@efficios.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; only
  12  * version 2.1 of the License.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include <linux/version.h>
  25 #include <linux/vmalloc.h>
  26
  27 #if LTTNG_KERNEL_RANGE(2,6,36, 2,6,37)
  28 static inline
  29 void *lttng_vzalloc(unsigned long size)
  30 {
  31         void *ret;
  32         ret = vmalloc(size);
  33         if (!ret)
  34                 return NULL;
  35         memset(ret, 0, size);
  36         return ret;
  37 }
  38 #else
  39 static inline
  40 void *lttng_vzalloc(unsigned long size)
  41 {
  42         return vzalloc(size);
  43 }
  44 #endif
  45
  46
  47 #endif /* _LTTNG_WRAPPER_VZALLOC_H */