diff options
Diffstat (limited to 'drivers/net/virtio/virtio_user/vhost_user.c')
| -rw-r--r-- | drivers/net/virtio/virtio_user/vhost_user.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/net/virtio/virtio_user/vhost_user.c b/drivers/net/virtio/virtio_user/vhost_user.c index 6f4845b7..a670da4d 100644 --- a/drivers/net/virtio/virtio_user/vhost_user.c +++ b/drivers/net/virtio/virtio_user/vhost_user.c @@ -134,12 +134,13 @@ struct hugepage_file_info { static int get_hugepage_file_info(struct hugepage_file_info huges[], int max) { - int idx; + int idx, k, exist; FILE *f; char buf[BUFSIZ], *tmp, *tail; char *str_underline, *str_start; int huge_index; uint64_t v_start, v_end; + struct stat stats; f = fopen("/proc/self/maps", "r"); if (!f) { @@ -179,16 +180,39 @@ get_hugepage_file_info(struct hugepage_file_info huges[], int max) if (sscanf(str_start, "map_%d", &huge_index) != 1) continue; + /* skip duplicated file which is mapped to different regions */ + for (k = 0, exist = -1; k < idx; ++k) { + if (!strcmp(huges[k].path, tmp)) { + exist = k; + break; + } + } + if (exist >= 0) + continue; + if (idx >= max) { PMD_DRV_LOG(ERR, "Exceed maximum of %d", max); goto error; } + huges[idx].addr = v_start; - huges[idx].size = v_end - v_start; + huges[idx].size = v_end - v_start; /* To be corrected later */ snprintf(huges[idx].path, PATH_MAX, "%s", tmp); idx++; } + /* correct the size for files who have many regions */ + for (k = 0; k < idx; ++k) { + if (stat(huges[k].path, &stats) < 0) { + PMD_DRV_LOG(ERR, "Failed to stat %s, %s\n", + huges[k].path, strerror(errno)); + continue; + } + huges[k].size = stats.st_size; + PMD_DRV_LOG(INFO, "file %s, size %zx\n", + huges[k].path, huges[k].size); + } + fclose(f); return idx; |