Linux Certif

Toute la documentation sur la certification Linux LPI

alloc_hugepages

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alloc_hugepages, free_hugepages - ¥Ò¥å¡¼¥¸¥Ú¡¼¥¸ (huge page) ¤Î³ä¤êÅö¤Æ¤È²òÊü¤ò¹Ô¤¦

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void *alloc_hugepages(int key, void *addr, size_t len,

                      int prot, int flag);



int free_hugepages(void *addr);

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free_hugepages() ¤Î addr °ú¤­¿ô¤Ï¡¢¤É¤Î¥Ú¡¼¥¸¤ò²òÊü¤¹¤ë¤«¤ò»ØÄꤹ¤ë: addr ¤Ï alloc_hugepages() ¤Î¸Æ¤Ó½Ð¤·¤ÎÊÖ¤êÃͤǤ¢¤ë (Á´¤Æ¤Î¥æ¡¼¥¶¤¬¥á¥â¥ê¤ò²òÊü¤·¤¿¤È¤­¤Ë¡¢ ¤½¤Î¥á¥â¥ê¤Ï½é¤á¤Æ¼ÂºÝ¤Ë²òÊü¤µ¤ì¤ë)¡£ alloc_hugepages() ¤Î addr °ú¤­¿ô¤Ï¥Ò¥ó¥È¤Ç¤¢¤ê¡¢¥«¡¼¥Í¥ë¤Ï¤½¤ì¤Ë½¾¤¦¤«¤â¤·¤ì¤Ê¤¤¤·¡¢ ½¾¤ï¤Ê¤¤¤«¤â¤·¤ì¤Ê¤¤¡£ ¥¢¥É¥ì¥¹¤ÏÀµ¤·¤¯ÇÛÃÖ¤µ¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£

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prot °ú¤­¿ô¤Ï¥»¥°¥á¥ó¥È¤Î¥á¥â¥êÊݸî¤ò»ØÄꤹ¤ë¡£ ¤³¤ì¤Ï PROT_READ, PROT_WRITE, PROT_EXEC ¤Î¤¤¤º¤ì¤«¤Ç¤¢¤ë¡£

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