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bdflush
Langue: ja
Version: 2004-06-17 (openSuse - 09/10/07)
Section: 2 (Appels système)
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#include <sys/kdaemon.h> int bdflush(int func, long *address); int bdflush(int func, long data);
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bdflush() ¤Ï¥Ð¥Ã¥Õ¥¡¡¼¡¦¥À¡¼¥Æ¥£¡¼¡¦¥Õ¥é¥Ã¥·¥å (buffer-dirty-flush)¡¦ ¥Ç¡¼¥â¥ó (daemon) ¤òµ¯Æ°¡¢¥Õ¥é¥Ã¥·¥å (flush)¡¢Ä´À° (tune) ¤¹¤ë¡£ (CAP_SYS_ADMIN ¥±¡¼¥Ñ¥Ó¥ê¥Æ¥£ (capability) ¤ò»ý¤Ä) Æø¢¥×¥í¥»¥¹¤Î¤ß¤¬ bdflush() ¤ò¸Æ¤Ó½Ð¤¹¤³¤È¤¬¤Ç¤¤ë¡£func ¤¬É餫 0 ¤Ç¥Ç¡¼¥â¥ó¤¬µ¯Æ°¤µ¤ì¤Æ¤¤¤Ê¤ì¤Ð¡¢ bdflush() ¤Ï¥Ç¡¼¥â¥ó¤Î¥³¡¼¥É¤ØÆþ¤ê¡¢Ìá¤Ã¤Æ¤³¤Ê¤¤¡£
func ¤¬ 1 ¤Ê¤é¤Ð¡¢ ±ø¤ì¤¿ (dirty) ¥Ð¥Ã¥Õ¥¡¡¼¤¬¥Ç¥£¥¹¥¯¤Ø¤È½ñ¤¹þ¤Þ¤ì¤ë¡£
func ¤¬ 2 °Ê¾å¤Ç¶ö¿ô (ºÇ¾®¥Ó¥Ã¥È¤¬ 0) ¤Ê¤é¤Ð¡¢ address ¤Ë¥í¥ó¥°¡¦¥ï¡¼¥É¤Ç¥¢¥É¥ì¥¹¤ò»ØÄꤷ¡¢¤½¤Î¥¢¥É¥ì¥¹¤Ë (func-2)/2 ¤Ç»ØÄꤵ¤ì¤¿Ä´Àá¥Ñ¥é¥á¡¼¥¿¡¼¤¬ÊÖ¤µ¤ì¤ë¡£
func ¤¬ 3 °Ê¾å¤Ç´ñ¿ô (ºÇ¾®¥Ó¥Ã¥È¤¬ 1) ¤Ê¤é¤Ð¡¢ data ¤ò¥í¥ó¥°¡¦¥ï¡¼¥É¤Ç»ØÄꤷ¡¢¤½¤ÎÃͤò (func-3)/2 ¤Ç»ØÄꤵ¤ì¤¿Ä´Àá¥Ñ¥é¥á¡¼¥¿¡¼¤ËÀßÄꤹ¤ë¡£
¥Ñ¥é¥á¡¼¥¿¡¼¤Î½¸¹ç¤ÎÃͤäÀµ¤·¤¤ÈϰϤϥ«¡¼¥Í¥ë¤Î¥½¡¼¥¹¡¦¥Õ¥¡¥¤¥ë¤Î fs/buffer.c ¤ËÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£
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func ¤¬É餫 0 ¤Ç¡¢¥Ç¥â¡¼¥ó¤Îµ¯Æ°¤ËÀ®¸ù¤·¤¿¾ì¹ç¤Ï bdflush() ¤ÏÊ֤äƤ³¤Ê¤¤¡£ ¤½¤¦¤Ç¤Ê¤±¤ì¤ÐÀ®¸ù¤·¤¿¾ì¹ç¤Ë¤Ï 0 ¤¬ÊÖ¤µ¤ì¤ë¡£¼ºÇÔ¤·¤¿¾ì¹ç¤Ë¤Ï -1 ¤¬ÊÖ¤µ¤ì¡¢ errno ¤Ë¤½¤Î¥¨¥é¡¼¤¬»Ø¼¨¤µ¤ì¤ë¡£¥¨¥é¡¼
- EBUSY
- ¾¤Î¥×¥í¥»¥¹¤¬´û¤Ë¥Ç¡¼¥â¥ó¡¦¥³¡¼¥É¤ËÆþ¤Ã¤Æ¤¤¤ë¤Î¤Ë¡¢Æþ¤í¤¦¤È»î¤ß¤¿¡£
- EFAULT
- address ¤¬¥¢¥¯¥»¥¹²Äǽ¤Ê¥¢¥É¥ì¥¹¶õ´Ö¤Î³°Éô¤ò»Ø¤·¤Æ¤¤¤ë¡£
- EINVAL
- ÉÔÀµ¤Ê¥Ñ¥é¥á¡¼¥¿¡¼¤ÎÆɤ߽ñ¤¤ò»î¤ß¤¿¤«¡¢¥Ñ¥é¥á¡¼¥¿¡¼¤ØÉÔÀµ¤ÊÃͤò ½ñ¤¹þ¤â¤¦¤È¤·¤¿¡£
- EPERM
- ¸Æ¤Ó½Ð¤·¸µ¤Ë CAP_SYS_ADMIN ¥±¡¼¥Ñ¥Ó¥ê¥Æ¥£¤¬¤Ê¤¤¡£
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