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103 lines
2.8 KiB
103 lines
2.8 KiB
7 years ago
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diff -up util-linux-2.23.2/sys-utils/lscpu.c.kzak util-linux-2.23.2/sys-utils/lscpu.c
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--- util-linux-2.23.2/sys-utils/lscpu.c.kzak 2013-07-30 10:39:26.342739583 +0200
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+++ util-linux-2.23.2/sys-utils/lscpu.c 2014-01-14 11:21:51.837599200 +0100
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@@ -49,6 +49,7 @@
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/* /sys paths */
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#define _PATH_SYS_SYSTEM "/sys/devices/system"
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#define _PATH_SYS_CPU _PATH_SYS_SYSTEM "/cpu"
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+#define _PATH_SYS_NODE _PATH_SYS_SYSTEM "/node"
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#define _PATH_PROC_XEN "/proc/xen"
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#define _PATH_PROC_XENCAP _PATH_PROC_XEN "/capabilities"
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#define _PATH_PROC_CPUINFO "/proc/cpuinfo"
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@@ -157,6 +158,7 @@ struct lscpu_desc {
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cpu_set_t *online; /* mask with online CPUs */
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int nnodes; /* number of NUMA modes */
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+ int *idx2nodenum; /* Support for discontinuous nodes */
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cpu_set_t **nodemaps; /* array with NUMA nodes */
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/* books -- based on book_siblings (internal kernel map of cpuX's
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@@ -802,25 +804,59 @@ read_cache(struct lscpu_desc *desc, int
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}
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}
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+static inline int is_node_dirent(struct dirent *d)
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+{
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+ return
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+ d &&
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+#ifdef _DIRENT_HAVE_D_TYPE
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+ d->d_type == DT_DIR &&
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+#endif
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+ strncmp(d->d_name, "node", 4) == 0 &&
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+ isdigit_string(d->d_name + 4);
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+}
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+
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static void
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read_nodes(struct lscpu_desc *desc)
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{
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- int i;
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+ int i = 0;
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+ DIR *dir;
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+ struct dirent *d;
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+ char *path;
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/* number of NUMA node */
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- while (path_exist(_PATH_SYS_SYSTEM "/node/node%d", desc->nnodes))
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- desc->nnodes++;
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+ path = path_strdup(_PATH_SYS_NODE);
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+ dir = opendir(path);
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+ free(path);
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+
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+ while (dir && (d = readdir(dir))) {
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+ if (is_node_dirent(d))
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+ desc->nnodes++;
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+ }
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- if (!desc->nnodes)
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+ if (!desc->nnodes) {
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+ if (dir)
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+ closedir(dir);
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return;
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+ }
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desc->nodemaps = xcalloc(desc->nnodes, sizeof(cpu_set_t *));
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+ desc->idx2nodenum = xmalloc(desc->nnodes * sizeof(int));
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+
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+ if (dir) {
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+ rewinddir(dir);
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+ while ((d = readdir(dir)) && i < desc->nnodes) {
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+ if (is_node_dirent(d))
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+ desc->idx2nodenum[i++] = strtol_or_err(((d->d_name) + 4),
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+ _("Failed to extract the node number"));
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+ }
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+ closedir(dir);
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+ }
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/* information about how nodes share different CPUs */
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for (i = 0; i < desc->nnodes; i++)
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desc->nodemaps[i] = path_read_cpuset(maxcpus,
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_PATH_SYS_SYSTEM "/node/node%d/cpumap",
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- i);
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+ desc->idx2nodenum[i]);
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}
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static char *
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@@ -850,7 +886,7 @@ get_cell_data(struct lscpu_desc *desc, i
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case COL_NODE:
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if (cpuset_ary_isset(cpu, desc->nodemaps,
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desc->nnodes, setsize, &idx) == 0)
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- snprintf(buf, bufsz, "%zd", idx);
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+ snprintf(buf, bufsz, "%d", desc->idx2nodenum[idx]);
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break;
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case COL_BOOK:
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if (cpuset_ary_isset(cpu, desc->bookmaps,
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@@ -1250,7 +1286,7 @@ print_summary(struct lscpu_desc *desc, s
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}
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for (i = 0; i < desc->nnodes; i++) {
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- snprintf(buf, sizeof(buf), _("NUMA node%d CPU(s):"), i);
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+ snprintf(buf, sizeof(buf), _("NUMA node%d CPU(s):"), desc->idx2nodenum[i]);
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print_cpuset(buf, desc->nodemaps[i], mod->hex);
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}
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}
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