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| author | Heiko Carstens | 2011-09-06 02:52:55 +0200 |
|---|---|---|
| committer | Karel Zak | 2011-09-09 06:30:06 +0200 |
| commit | dcdead4271232c5638afdc8bc99cf792383eb27f (patch) | |
| tree | 8879dc7fb9fb3c313fdd56b34238b47fa8cdbc38 | |
| parent | lscpu: simplify cache column output function (diff) | |
| download | kernel-qcow2-util-linux-dcdead4271232c5638afdc8bc99cf792383eb27f.tar.gz kernel-qcow2-util-linux-dcdead4271232c5638afdc8bc99cf792383eb27f.tar.xz kernel-qcow2-util-linux-dcdead4271232c5638afdc8bc99cf792383eb27f.zip | |
lscpu: allow read_cache() to be called for offline cpus
First check path before accessing files to be sure they actually exist. This is
necessary when also informations for offline CPUs will be printed. Since we do
not necessarily know if "cpu is offline" means the same as "path does not
exist" just check for it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| -rw-r--r-- | sys-utils/lscpu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c index 203c64f51..1e37471ac 100644 --- a/sys-utils/lscpu.c +++ b/sys-utils/lscpu.c @@ -804,6 +804,9 @@ read_cache(struct lscpu_desc *desc, int num) struct cpu_cache *ca = &desc->caches[i]; cpu_set_t *map; + if (!path_exist(_PATH_SYS_SYSTEM "/cpu/cpu%d/cache/index%d", + num, i)) + continue; if (!ca->name) { int type, level; |