[libvirt PATCH 07/17] util: Have virCommand remember whether limits are set

[Andrea Bolognani <abologna@xxxxxxxxxx>]

Currently this only happens for the core size, but we want the
behavior to be consistent for other limits as well.

Signed-off-by: Andrea Bolognani <abologna@xxxxxxxxxx>
---
 src/util/vircommand.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/util/vircommand.c b/src/util/vircommand.c
index 3eef0767bb..044c5e0500 100644
--- a/src/util/vircommand.c
+++ b/src/util/vircommand.c
@@ -132,8 +132,11 @@ struct _virCommand {
     bool reap;
     bool rawStatus;
 
+    bool setMaxMemLock;
     unsigned long long maxMemLock;
+    bool setMaxProcesses;
     unsigned int maxProcesses;
+    bool setMaxFiles;
     unsigned int maxFiles;
     bool setMaxCore;
     unsigned long long maxCore;
@@ -806,11 +809,14 @@ virExec(virCommandPtr cmd)
         /* pidfilefd is intentionally leaked. */
     }
 
-    if (virProcessSetMaxMemLock(pid, cmd->maxMemLock) < 0)
+    if (cmd->setMaxMemLock &&
+        virProcessSetMaxMemLock(pid, cmd->maxMemLock) < 0)
         goto fork_error;
-    if (virProcessSetMaxProcesses(pid, cmd->maxProcesses) < 0)
+    if (cmd->setMaxProcesses &&
+        virProcessSetMaxProcesses(pid, cmd->maxProcesses) < 0)
         goto fork_error;
-    if (virProcessSetMaxFiles(pid, cmd->maxFiles) < 0)
+    if (cmd->setMaxFiles &&
+        virProcessSetMaxFiles(pid, cmd->maxFiles) < 0)
         goto fork_error;
     if (cmd->setMaxCore &&
         virProcessSetMaxCoreSize(pid, cmd->maxCore) < 0)
@@ -1149,6 +1155,7 @@ virCommandSetMaxMemLock(virCommandPtr cmd, unsigned long long bytes)
         return;
 
     cmd->maxMemLock = bytes;
+    cmd->setMaxMemLock = true;
 }
 
 void
@@ -1158,6 +1165,7 @@ virCommandSetMaxProcesses(virCommandPtr cmd, unsigned int procs)
         return;
 
     cmd->maxProcesses = procs;
+    cmd->setMaxProcesses = true;
 }
 
 void
@@ -1167,6 +1175,7 @@ virCommandSetMaxFiles(virCommandPtr cmd, unsigned int files)
         return;
 
     cmd->maxFiles = files;
+    cmd->setMaxFiles = true;
 }
 
 void virCommandSetMaxCoreSize(virCommandPtr cmd, unsigned long long bytes)
-- 
2.26.2