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Fio 2.0.14
[fio.git]
/
memory.c
diff --git
a/memory.c
b/memory.c
index b4ee4752487129be62d98a126d305c62fb1c0b0d..3759c8c58ae51fb5b1b3cef1e36f6dc24fd23c2a 100644
(file)
--- a/
memory.c
+++ b/
memory.c
@@
-5,7
+5,9
@@
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
+#ifndef FIO_NO_HAVE_SHM_H
#include <sys/shm.h>
#include <sys/shm.h>
+#endif
#include <sys/mman.h>
#include "fio.h"
#include <sys/mman.h>
#include "fio.h"
@@
-117,14
+119,16
@@
static void free_mem_shm(struct thread_data *td)
static int alloc_mem_mmap(struct thread_data *td, size_t total_mem)
{
static int alloc_mem_mmap(struct thread_data *td, size_t total_mem)
{
- int flags =
MAP_PRIVATE
;
+ int flags =
0
;
td->mmapfd = 1;
if (td->o.mem_type == MEM_MMAPHUGE) {
unsigned long mask = td->o.hugepage_size - 1;
td->mmapfd = 1;
if (td->o.mem_type == MEM_MMAPHUGE) {
unsigned long mask = td->o.hugepage_size - 1;
- flags |= MAP_HUGETLB;
+ /* TODO: make sure the file is a real hugetlbfs file */
+ if (!td->mmapfile)
+ flags |= MAP_HUGETLB;
total_mem = (total_mem + mask) & ~mask;
}
total_mem = (total_mem + mask) & ~mask;
}
@@
-136,13
+140,18
@@
static int alloc_mem_mmap(struct thread_data *td, size_t total_mem)
td->orig_buffer = NULL;
return 1;
}
td->orig_buffer = NULL;
return 1;
}
- if (ftruncate(td->mmapfd, total_mem) < 0) {
+ if (td->o.mem_type != MEM_MMAPHUGE &&
+ ftruncate(td->mmapfd, total_mem) < 0) {
td_verror(td, errno, "truncate mmap file");
td->orig_buffer = NULL;
return 1;
}
td_verror(td, errno, "truncate mmap file");
td->orig_buffer = NULL;
return 1;
}
+ if (td->o.mem_type == MEM_MMAPHUGE)
+ flags |= MAP_SHARED;
+ else
+ flags |= MAP_PRIVATE;
} else
} else
- flags |= OS_MAP_ANON;
+ flags |= OS_MAP_ANON
| MAP_PRIVATE
;
td->orig_buffer = mmap(NULL, total_mem, PROT_READ | PROT_WRITE, flags,
td->mmapfd, 0);
td->orig_buffer = mmap(NULL, total_mem, PROT_READ | PROT_WRITE, flags,
td->mmapfd, 0);