9decd8f3cc
- qemu: Fix cgroup handling when setting VCPU BW - daemon: fix leak after listing all volumes - Fix iohelper usage with streams opened for read - util: fix virFileOpenAs return value and resulting error logs - iscsi: don't leak portal string when starting a pool - don't mention disk controllers in generic controller errors - conf: don't crash on a tpm device with no backends - qemu: allocate network connections sooner during domain startup - Make detect_scsi_host_caps a function on all architectures - Fix release of resources with lockd plugin - Fix potential use of undefined variable in remote dispatch code - Fix F_DUPFD_CLOEXEC operation args - qemu: fix stupid typos in VFIO cgroup setup/teardown - network: fix network driver startup for qemu:///session - Remove patches that are included in the 1.0.5.1 release 0471637d-cgroups-vcpu-bw.patch, a2214c52-iohelper.patch, ca697e90-CVE-2013-1962.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=266
50 lines
1.9 KiB
Diff
50 lines
1.9 KiB
Diff
commit c2cf5f1c2abc81d607abe34bf5dc4c615a9b8b4d
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Author: Daniel P. Berrange <berrange@redhat.com>
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Date: Thu May 16 18:47:07 2013 +0100
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Fix failure to detect missing cgroup partitions
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Change bbe97ae968eba60b71e0066d49f9fc909966d9d6 caused the
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QEMU driver to ignore ENOENT errors from cgroups, in order
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to cope with missing /proc/cgroups. This is not good though
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because many other things can cause ENOENT and should not
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be ignored. The callers expect to see ENXIO when cgroups
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are not present, so adjust the code to report that errno
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when /proc/cgroups is missing
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Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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Index: libvirt-1.0.5.1/src/qemu/qemu_cgroup.c
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===================================================================
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--- libvirt-1.0.5.1.orig/src/qemu/qemu_cgroup.c
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+++ libvirt-1.0.5.1/src/qemu/qemu_cgroup.c
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@@ -415,8 +415,7 @@ int qemuInitCgroup(virQEMUDriverPtr driv
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if (rc != 0) {
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if (rc == -ENXIO ||
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rc == -EPERM ||
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- rc == -EACCES ||
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- rc == -ENOENT) { /* No cgroups mounts == success */
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+ rc == -EACCES) { /* No cgroups mounts == success */
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VIR_DEBUG("No cgroups present/configured/accessible, ignoring error");
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goto done;
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}
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Index: libvirt-1.0.5.1/src/util/vircgroup.c
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===================================================================
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--- libvirt-1.0.5.1.orig/src/util/vircgroup.c
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+++ libvirt-1.0.5.1/src/util/vircgroup.c
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@@ -1110,8 +1110,13 @@ static int virCgroupPartitionNeedsEscapi
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path[0] == '.')
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return 1;
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- if (!(fp = fopen("/proc/cgroups", "r")))
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+ if (!(fp = fopen("/proc/cgroups", "r"))) {
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+ /* The API contract is that we return ENXIO
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+ * if cgroups are not available on a host */
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+ if (errno == ENOENT)
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+ errno = ENXIO;
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return -errno;
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+ }
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/*
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* Data looks like this:
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