diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2006-09-08 23:07:54 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2006-09-08 23:07:54 +0000 |
| commit | 70d14139d8d160700d5a1d7add6e9202308091a9 (patch) | |
| tree | 37fa80f81f4123174d055dbbbfb793dcf2c469ee /include/sys | |
| parent | 84211be0889a59d7188645aefb5325ddfd642627 (diff) | |
add some inline funcs for the mlock funcs on no-mmu
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/mman.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/sys/mman.h b/include/sys/mman.h index aeeea7d0e..10f4afe24 100644 --- a/include/sys/mman.h +++ b/include/sys/mman.h @@ -100,6 +100,7 @@ extern int posix_madvise (void *__addr, size_t __len, int __advice) __THROW; #endif #ifdef __ARCH_USE_MMU__ + /* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to be memory resident. */ extern int mlock (__const void *__addr, size_t __len) __THROW; @@ -115,6 +116,17 @@ extern int mlockall (int __flags) __THROW; /* All currently mapped pages of the process' address space become unlocked. */ extern int munlockall (void) __THROW; + +#else + +/* On no-mmu systems, memory cannot be swapped out, so + * these functions will always succeed. + */ +static inline int mlock (__const void *__addr, size_t __len) { return 0; } +static inline int munlock (__const void *__addr, size_t __len) { return 0; } +static inline int mlockall (int __flags) { return 0; } +static inline int munlockall (void) { return 0; } + #endif #ifdef __USE_MISC |