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| author | Xiaolong Ye <xiaolong.ye@intel.com> | 2016-02-04 10:49:01 +0800 |
|---|---|---|
| committer | Fengguang Wu <fengguang.wu@intel.com> | 2016-02-04 10:49:01 +0800 |
| commit | a5006817a51a093ba88c44449215c51b461c852d (patch) | |
| tree | 4f4af75531250a3918852d2db2e671d283e96d73 | |
| parent | 828f30884a5f875b8b029983b1b1e1042dc6a5b6 (diff) | |
| download | vm-scalability-a5006817a51a093ba88c44449215c51b461c852d.tar.gz | |
usemem_remap.c: fix remap failed issue when size is pagesize aligned
2015-11-09 09:56:42 truncate /tmp/vm-scalability-tmp/vm-scalability/sparse-remap-1 -s 514191360
2015-11-09 09:56:42 truncate /tmp/vm-scalability-tmp/vm-scalability/sparse-remap-2 -s 514191360
2015-11-09 09:56:42 truncate /tmp/vm-scalability-tmp/vm-scalability/sparse-remap-3 -s 514191360
2015-11-09 09:56:43 truncate /tmp/vm-scalability-tmp/vm-scalability/sparse-remap-4 -s 514191360
==> /tmp/stderr <==
remap failed with error Invalid argument
remap failed with error Invalid argument
remap failed with error Invalid argument
remap failed with error Invalid argument
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
| -rw-r--r-- | usemem_remap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/usemem_remap.c b/usemem_remap.c index bffb52a..1f900fd 100644 --- a/usemem_remap.c +++ b/usemem_remap.c @@ -34,7 +34,7 @@ int main (int argc, char *argv[]) } size = atol(argv[2]); - no_of_pages = size / pagesize; + no_of_pages = (size + pagesize - 1) / pagesize; if ((fd = open(argv[1], O_RDWR | O_CREAT, 0666)) == -1) { fprintf(stderr, "error opening file\n"); @@ -49,7 +49,7 @@ int main (int argc, char *argv[]) exit(1); } - end = (unsigned char *) (start + size); + end = (unsigned char *) (start + (no_of_pages - 1) * pagesize); /* make mapping non-contiguous (reverse the page mapping order) */ for (i = 0; i < no_of_pages / 2; i++) { |