[PATCH] virsh: Simplify @flags handing in cmdSetmem() and cmdSetmaxmem()

[Michal Privoznik]

What code tries to achieve is that if no flags were provided to
either 'setmem' or 'setmaxmem' commands then the old (no flags)
API is called to be able to communicate with older daemons.
Well, the code can be simplified a bit.

Note that with this change the old no flag version of APIs is
used more often. Previously if --current argument was given it
resulted in *Flags() version to be called even though it is not
necessary - VIR_DOMAIN_AFFECT_CURRENT is implied.

Therefore, this change in fact allows virsh to talk with broader
set of daemons.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 tools/virsh-domain.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 2bb136333f..9746117bdb 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -9018,9 +9018,6 @@ cmdSetmem(vshControl *ctl, const vshCmd *cmd)
         flags |= VIR_DOMAIN_AFFECT_CONFIG;
     if (live)
         flags |= VIR_DOMAIN_AFFECT_LIVE;
-    /* none of the options were specified */
-    if (!current && !live && !config)
-        flags = -1;
 
     if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
         return false;
@@ -9037,7 +9034,7 @@ cmdSetmem(vshControl *ctl, const vshCmd *cmd)
     }
     kibibytes = VIR_DIV_UP(bytes, 1024);
 
-    if (flags == -1) {
+    if (flags == 0) {
         if (virDomainSetMemory(dom, kibibytes) != 0)
             ret = false;
     } else {
@@ -9090,7 +9087,7 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd)
     bool config = vshCommandOptBool(cmd, "config");
     bool live = vshCommandOptBool(cmd, "live");
     bool current = vshCommandOptBool(cmd, "current");
-    unsigned int flags = VIR_DOMAIN_AFFECT_CURRENT | VIR_DOMAIN_MEM_MAXIMUM;
+    unsigned int flags = VIR_DOMAIN_AFFECT_CURRENT;
 
     VSH_EXCLUSIVE_OPTIONS_VAR(current, live);
     VSH_EXCLUSIVE_OPTIONS_VAR(current, config);
@@ -9099,9 +9096,6 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd)
         flags |= VIR_DOMAIN_AFFECT_CONFIG;
     if (live)
         flags |= VIR_DOMAIN_AFFECT_LIVE;
-    /* none of the options were specified */
-    if (!current && !live && !config)
-        flags = -1;
 
     if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
         return false;
@@ -9118,13 +9112,13 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd)
     }
     kibibytes = VIR_DIV_UP(bytes, 1024);
 
-    if (flags == -1) {
+    if (flags == 0) {
         if (virDomainSetMaxMemory(dom, kibibytes) != 0) {
             vshError(ctl, "%s", _("Unable to change MaxMemorySize"));
             ret = false;
         }
     } else {
-        if (virDomainSetMemoryFlags(dom, kibibytes, flags) < 0) {
+        if (virDomainSetMemoryFlags(dom, kibibytes, flags | VIR_DOMAIN_MEM_MAXIMUM) < 0) {
             vshError(ctl, "%s", _("Unable to change MaxMemorySize"));
             ret = false;
         }
-- 
2.26.2