[libvirt] [PATCH] qemu: domain: Log some useful data in qemuDomainStorageSourceAccessModify
Log the flags passed to the function in a exploded state so that it's easily visible what's happening to the image. Signed-off-by: Peter Krempa <pkrempa@redhat.com> --- src/qemu/qemu_domain.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2095191cde..d28cfa4f42 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -9339,6 +9339,9 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, int ret = -1; virErrorPtr orig_err = NULL; bool chain = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_CHAIN; + bool force_ro = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY; + bool force_rw = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_WRITE; + bool revoke = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_REVOKE; int rc; bool was_readonly = src->readonly; bool revoke_cgroup = false; @@ -9346,14 +9349,18 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, bool revoke_namespace = false; bool revoke_lockspace = false; - if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY) + VIR_DEBUG("VM: '%s', src: '%s', readonly: '%d, force_ro: '%d', force_rw: '%d', revoke: '%d', chain: '%d'", + vm->def->name, NULLSTR(src->path), src->readonly, force_ro, + force_rw, revoke, chain); + + if (force_ro) src->readonly = true; - if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_WRITE) + if (force_rw) src->readonly = false; /* just tear down the disk access */ - if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_REVOKE) { + if (revoke) { virErrorPreserveLast(&orig_err); revoke_cgroup = true; revoke_label = true; -- 2.21.0
On Wed, Jun 12, 2019 at 01:53:39PM +0200, Peter Krempa wrote:
Log the flags passed to the function in a exploded state so that it's
s/a exploded/an exploded/
easily visible what's happening to the image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> --- src/qemu/qemu_domain.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2095191cde..d28cfa4f42 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -9339,6 +9339,9 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, int ret = -1; virErrorPtr orig_err = NULL; bool chain = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_CHAIN; + bool force_ro = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY; + bool force_rw = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_WRITE; + bool revoke = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_REVOKE; int rc; bool was_readonly = src->readonly; bool revoke_cgroup = false; @@ -9346,14 +9349,18 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, bool revoke_namespace = false; bool revoke_lockspace = false;
- if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY) + VIR_DEBUG("VM: '%s', src: '%s', readonly: '%d, force_ro: '%d', force_rw: '%d', revoke: '%d', chain: '%d'",
We usually use lowercase 'vm' in the logs. Also, the readonly attribue has a mismatched attribute. How about the more compact format we use elsewhere: VIR_DEBUG("VM='%s', src='%s', readonly=%d force_ro=%d force_rw=%d revoke=%d chain=%d".
+ vm->def->name, NULLSTR(src->path), src->readonly, force_ro, + force_rw, revoke, chain); +
Reviewed-by: Ján Tomko <jtomko@redhat.com> Jano
On Wed, Jun 12, 2019 at 14:15:02 +0200, Ján Tomko wrote:
On Wed, Jun 12, 2019 at 01:53:39PM +0200, Peter Krempa wrote:
Log the flags passed to the function in a exploded state so that it's
s/a exploded/an exploded/
easily visible what's happening to the image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> --- src/qemu/qemu_domain.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2095191cde..d28cfa4f42 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -9339,6 +9339,9 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, int ret = -1; virErrorPtr orig_err = NULL; bool chain = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_CHAIN; + bool force_ro = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY; + bool force_rw = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_WRITE; + bool revoke = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_REVOKE; int rc; bool was_readonly = src->readonly; bool revoke_cgroup = false; @@ -9346,14 +9349,18 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, bool revoke_namespace = false; bool revoke_lockspace = false;
- if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY) + VIR_DEBUG("VM: '%s', src: '%s', readonly: '%d, force_ro: '%d', force_rw: '%d', revoke: '%d', chain: '%d'",
We usually use lowercase 'vm' in the logs. Also, the readonly attribue has a mismatched attribute.
How about the more compact format we use elsewhere: VIR_DEBUG("VM='%s', src='%s', readonly=%d force_ro=%d force_rw=%d revoke=%d chain=%d".
Okay, I'll also drop the VM since it's not necessary as you can figure it from the context of the logs quite easily.
Peter Krempa <pkrempa@redhat.com> [2019-06-12, 01:53PM +0200]:
Log the flags passed to the function in a exploded state so that it's easily visible what's happening to the image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> --- src/qemu/qemu_domain.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2095191cde..d28cfa4f42 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -9339,6 +9339,9 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, int ret = -1; virErrorPtr orig_err = NULL; bool chain = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_CHAIN; + bool force_ro = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY; + bool force_rw = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_WRITE; + bool revoke = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_REVOKE; int rc; bool was_readonly = src->readonly; bool revoke_cgroup = false; @@ -9346,14 +9349,18 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, bool revoke_namespace = false; bool revoke_lockspace = false;
- if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY) + VIR_DEBUG("VM: '%s', src: '%s', readonly: '%d, force_ro: '%d', force_rw: '%d', revoke: '%d', chain: '%d'",
Almost everywhere we use the syntax key=value when logging, so I'd prefer this here as well. -- IBM Systems Linux on Z & Virtualization Development -------------------------------------------------- IBM Deutschland Research & Development GmbH Schönaicher Str. 220, 71032 Böblingen Phone: +49 7031 16 1819 -------------------------------------------------- Vorsitzende des Aufsichtsrats: Matthias Hartmann Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294
On Wed, Jun 12, 2019 at 14:17:48 +0200, Bjoern Walk wrote:
Peter Krempa <pkrempa@redhat.com> [2019-06-12, 01:53PM +0200]:
Log the flags passed to the function in a exploded state so that it's easily visible what's happening to the image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> --- src/qemu/qemu_domain.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2095191cde..d28cfa4f42 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -9339,6 +9339,9 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, int ret = -1; virErrorPtr orig_err = NULL; bool chain = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_CHAIN; + bool force_ro = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY; + bool force_rw = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_WRITE; + bool revoke = flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_REVOKE; int rc; bool was_readonly = src->readonly; bool revoke_cgroup = false; @@ -9346,14 +9349,18 @@ qemuDomainStorageSourceAccessModify(virQEMUDriverPtr driver, bool revoke_namespace = false; bool revoke_lockspace = false;
- if (flags & QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_FORCE_READ_ONLY) + VIR_DEBUG("VM: '%s', src: '%s', readonly: '%d, force_ro: '%d', force_rw: '%d', revoke: '%d', chain: '%d'",
Almost everywhere we use the syntax key=value when logging, so I'd prefer this here as well.
I agree I changed it along with dropping the 'VM' part and fixing the quote on readonly as suggested by Jano in the other review.
participants (3)
-
Bjoern Walk -
Ján Tomko -
Peter Krempa