mirror_zfs/modules/spl/spl-generic.c
behlendo 77b1fe8fa8 Add highbit func,
Add sloopy atomic declaration which will need to be fixed (eventually)
Fill out more of the Solaris VM hooks
Adjust the create_thread function



git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@26 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
2008-03-06 23:12:55 +00:00

59 lines
1.0 KiB
C

#include <sys/sysmacros.h>
#include "config.h"
/*
* Generic support
*/
int p0 = 0;
EXPORT_SYMBOL(p0);
int
highbit(unsigned long i)
{
register int h = 1;
if (i == 0)
return (0);
#if BITS_PER_LONG == 64
if (i & 0xffffffff00000000ul) {
h += 32; i >>= 32;
}
#endif
if (i & 0xffff0000) {
h += 16; i >>= 16;
}
if (i & 0xff00) {
h += 8; i >>= 8;
}
if (i & 0xf0) {
h += 4; i >>= 4;
}
if (i & 0xc) {
h += 2; i >>= 2;
}
if (i & 0x2) {
h += 1;
}
return (h);
}
EXPORT_SYMBOL(highbit);
static int __init spl_init(void)
{
printk(KERN_INFO "spl: Loaded Solaris Porting Layer v%s\n", VERSION);
return 0;
}
static void spl_fini(void)
{
return;
}
module_init(spl_init);
module_exit(spl_fini);
MODULE_AUTHOR("Lawrence Livermore National Labs");
MODULE_DESCRIPTION("Solaris Porting Layer");
MODULE_LICENSE("GPL");