Re: [libvirt] [PATCH] qemu: domain: Log some useful data in qemuDomainStorageSourceAccessModify
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
> > ---
> > 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.
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Re: [libvirt] [PATCH] qemu: domain: Log some useful data in qemuDomainStorageSourceAccessModify
On Wed, Jun 12, 2019 at 14:17:48 +0200, Bjoern Walk wrote:
> Peter Krempa [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
> > ---
> > 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.
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Re: [libvirt] [PATCH] qemu: domain: Log some useful data in qemuDomainStorageSourceAccessModify
Peter Krempa [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
> ---
> 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.
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Re: [libvirt] [PATCH] qemu: domain: Log some useful data in qemuDomainStorageSourceAccessModify
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
---
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
Jano
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[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
---
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(_err);
revoke_cgroup = true;
revoke_label = true;
--
2.21.0
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