diff options
Diffstat (limited to 'src/chunk_mmap.c')
| -rw-r--r-- | src/chunk_mmap.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/chunk_mmap.c b/src/chunk_mmap.c index f960e06..65137b4 100644 --- a/src/chunk_mmap.c +++ b/src/chunk_mmap.c @@ -121,7 +121,7 @@ pages_purge(void *addr, size_t length) #ifdef _WIN32 VirtualAlloc(addr, length, MEM_RESET, PAGE_READWRITE); unzeroed = true; -#else +#elif defined(JEMALLOC_HAVE_MADVISE) # ifdef JEMALLOC_PURGE_MADVISE_DONTNEED # define JEMALLOC_MADV_PURGE MADV_DONTNEED # define JEMALLOC_MADV_ZEROS true @@ -129,12 +129,15 @@ pages_purge(void *addr, size_t length) # define JEMALLOC_MADV_PURGE MADV_FREE # define JEMALLOC_MADV_ZEROS false # else -# error "No method defined for purging unused dirty pages." +# error "No madvise(2) flag defined for purging unused dirty pages." # endif int err = madvise(addr, length, JEMALLOC_MADV_PURGE); unzeroed = (JEMALLOC_MADV_ZEROS == false || err != 0); # undef JEMALLOC_MADV_PURGE # undef JEMALLOC_MADV_ZEROS +#else + /* Last resort no-op. */ + unzeroed = true; #endif return (unzeroed); } |