diff options
| author | Maria Matejka <mq@ucw.cz> | 2022-03-09 09:13:20 +0100 |
|---|---|---|
| committer | Maria Matejka <mq@ucw.cz> | 2022-03-09 09:13:20 +0100 |
| commit | 1c7df2c24029d6721745b99fd4137935db03e257 (patch) | |
| tree | b0b5e1ab704e1744d90c195a30ab51c74133ffc6 /sysdep/unix/alloc.c | |
| parent | 1740ff57e8ea05d7d9f15d1a6830ce42add3e4bd (diff) | |
Revert "Multipage allocation"
This reverts commit 6cd37713781a3092f8166b2178fae35cbfec1e28.
Diffstat (limited to 'sysdep/unix/alloc.c')
| -rw-r--r-- | sysdep/unix/alloc.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/sysdep/unix/alloc.c b/sysdep/unix/alloc.c index 4c9d5eb5..f6296afe 100644 --- a/sysdep/unix/alloc.c +++ b/sysdep/unix/alloc.c @@ -17,7 +17,6 @@ #endif long page_size = 0; -_Bool alloc_multipage = 0; #ifdef HAVE_MMAP static _Bool use_fake = 0; @@ -46,31 +45,9 @@ alloc_sys_page(void) #ifdef HAVE_MMAP if (!use_fake) { - if (alloc_multipage) - { - void *big = mmap(NULL, page_size * 2, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (big == MAP_FAILED) - bug("mmap(%lu) failed: %m", page_size); - - uintptr_t offset = ((uintptr_t) big) % page_size; - if (offset) - { - void *ret = big + page_size - offset; - munmap(big, page_size - offset); - munmap(ret + page_size, offset); - return ret; - } - else - { - munmap(big + page_size, page_size); - return big; - } - } - void *ret = mmap(NULL, page_size, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (ret == MAP_FAILED) bug("mmap(%lu) failed: %m", page_size); - return ret; } else |