1*53ee8cc1Swenshuai.xi #ifndef FADVISE_H_INCLUDED 2*53ee8cc1Swenshuai.xi #define FADVISE_H_INCLUDED 3*53ee8cc1Swenshuai.xi 4*53ee8cc1Swenshuai.xi #define POSIX_FADV_NORMAL 0 /* No further special treatment. */ 5*53ee8cc1Swenshuai.xi #define POSIX_FADV_RANDOM 1 /* Expect random page references. */ 6*53ee8cc1Swenshuai.xi #define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ 7*53ee8cc1Swenshuai.xi #define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ 8*53ee8cc1Swenshuai.xi 9*53ee8cc1Swenshuai.xi /* 10*53ee8cc1Swenshuai.xi * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE 11*53ee8cc1Swenshuai.xi * for s390-64 differ from the values for the rest of the world. 12*53ee8cc1Swenshuai.xi */ 13*53ee8cc1Swenshuai.xi #if defined(__s390x__) 14*53ee8cc1Swenshuai.xi #define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */ 15*53ee8cc1Swenshuai.xi #define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */ 16*53ee8cc1Swenshuai.xi #else 17*53ee8cc1Swenshuai.xi #define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ 18*53ee8cc1Swenshuai.xi #define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ 19*53ee8cc1Swenshuai.xi #endif 20*53ee8cc1Swenshuai.xi 21*53ee8cc1Swenshuai.xi #endif /* FADVISE_H_INCLUDED */ 22