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35 #ifndef __LNET_LINUX_LIB_LNET_H__
36 #define __LNET_LINUX_LIB_LNET_H__
38 #ifndef __LNET_LIB_LNET_H__
39 #error Do not #include this file directly. #include <linux/lnet/lib-lnet.h> instead
42 # include <asm/page.h>
43 # include <linux/string.h>
45 # include <linux/libcfs/libcfs.h>
48 lnet_page2phys (struct page *p)
50 /* compiler optimizer will elide unused branches */
52 switch (sizeof(typeof(page_to_phys(p)))) {
54 /* page_to_phys returns a 32 bit physical address. This must
55 * be a 32 bit machine with <= 4G memory and we must ensure we
56 * don't sign extend when converting to 64 bits. */
57 return (unsigned long)page_to_phys(p);
60 /* page_to_phys returns a 64 bit physical address :) */
61 return page_to_phys(p);
72 #endif /* __LNET_LINUX_LIB_LNET_H__ */