Re: [libvirt] [PATCH] nodeinfo: enable nodeGetCPUCount for older kernels

Since /sys/devices/system/cpu/present is not available on older kernels like on RHEL 5.x nodeGetCPUCount will fail there. The fallback implemented is to scan for /sys/devices/system/cpu/cpuNN entries. Signed-off-by: Viktor Mihajlovski <mihajlov(a)linux.vnet.ibm.com&gt; --- src/nodeinfo.c | 33 ++++++++++++++++++++++++++++----- 1 files changed, 28 insertions(+), 5 deletions(-)

+ if (virFileExists(SYSFS_SYSTEM_PATH "/cpu/present")) { + i = linuxParseCPUmax(SYSFS_SYSTEM_PATH "/cpu/present"); + } else if (virFileExists(SYSFS_SYSTEM_PATH "/cpu/cpu0")) { + do { + i++; + VIR_FREE(cpupath); + if (virAsprintf(&cpupath, "%s/cpu/cpu%d", + SYSFS_SYSTEM_PATH, i) < 0) { + virReportOOMError(); + return -1; + } + } while (virFileExists(cpupath));