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[libvirt] [PATCH] qemu: Genericize tapfds/ntapfds



There doesn't seem to be anything specific to tap devices for this
array of file descriptors which need to stay open of the guest to use.
Rename then for others to make use of.

Signed-off-by: Alex Williamson <alex williamson redhat com>
---

 src/qemu/qemu_conf.c   |   28 ++++++++++++++--------------
 src/qemu/qemu_driver.c |   18 +++++++++---------
 2 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 3e334dc..d7bc798 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -3422,8 +3422,8 @@ int qemudBuildCommandLine(virConnectPtr conn,
                           unsigned long long qemuCmdFlags,
                           const char ***retargv,
                           const char ***retenv,
-                          int **tapfds,
-                          int *ntapfds,
+                          int **vmfds,
+                          int *nvmfds,
                           const char *migrateFrom,
                           virDomainSnapshotObjPtr current_snapshot)
 {
@@ -4116,7 +4116,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
                 if (tapfd < 0)
                     goto error;
 
-                if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) {
+                if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) {
                     virNWFilterTearNWFilter(net);
                     close(tapfd);
                     goto no_memory;
@@ -4124,7 +4124,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
 
                 last_good_net = i;
 
-                (*tapfds)[(*ntapfds)++] = tapfd;
+                (*vmfds)[(*nvmfds)++] = tapfd;
 
                 if (snprintf(tapfd_name, sizeof(tapfd_name), "%d", tapfd) >= sizeof(tapfd_name))
                     goto no_memory;
@@ -4136,7 +4136,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
                 if (tapfd < 0)
                     goto error;
 
-                if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) {
+                if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) {
                     virNWFilterTearNWFilter(net);
                     close(tapfd);
                     goto no_memory;
@@ -4144,7 +4144,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
 
                 last_good_net = i;
 
-                (*tapfds)[(*ntapfds)++] = tapfd;
+                (*vmfds)[(*nvmfds)++] = tapfd;
 
                 if (snprintf(tapfd_name, sizeof(tapfd_name), "%d", tapfd) >= sizeof(tapfd_name))
                     goto no_memory;
@@ -4157,12 +4157,12 @@ int qemudBuildCommandLine(virConnectPtr conn,
                    network device */
                 int vhostfd = qemudOpenVhostNet(net, qemuCmdFlags);
                 if (vhostfd >= 0) {
-                    if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) {
+                    if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) {
                         close(vhostfd);
                         goto no_memory;
                     }
 
-                    (*tapfds)[(*ntapfds)++] = vhostfd;
+                    (*vmfds)[(*nvmfds)++] = vhostfd;
                     if (snprintf(vhostfd_name, sizeof(vhostfd_name), "%d", vhostfd)
                         >= sizeof(vhostfd_name))
                         goto no_memory;
@@ -4653,12 +4653,12 @@ int qemudBuildCommandLine(virConnectPtr conn,
  error:
     for (i = 0; i <= last_good_net; i++)
         virNWFilterTearNWFilter(def->nets[i]);
-    if (tapfds &&
-        *tapfds) {
-        for (i = 0; i < *ntapfds; i++)
-            close((*tapfds)[i]);
-        VIR_FREE(*tapfds);
-        *ntapfds = 0;
+    if (vmfds &&
+        *vmfds) {
+        for (i = 0; i < *nvmfds; i++)
+            close((*vmfds)[i]);
+        VIR_FREE(*vmfds);
+        *nvmfds = 0;
     }
     if (qargv) {
         for (i = 0 ; i < qargc ; i++)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 65ca117..dd5bd24 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3253,8 +3253,8 @@ static int qemudStartVMDaemon(virConnectPtr conn,
     const char **progenv = NULL;
     int i, ret;
     struct stat sb;
-    int *tapfds = NULL;
-    int ntapfds = 0;
+    int *vmfds = NULL;
+    int nvmfds = 0;
     unsigned long long qemuCmdFlags;
     fd_set keepfd;
     const char *emulator;
@@ -3411,7 +3411,7 @@ static int qemudStartVMDaemon(virConnectPtr conn,
     vm->def->id = driver->nextvmid++;
     if (qemudBuildCommandLine(conn, driver, vm->def, priv->monConfig,
                               priv->monJSON, qemuCmdFlags, &argv, &progenv,
-                              &tapfds, &ntapfds, migrateFrom,
+                              &vmfds, &nvmfds, migrateFrom,
                               vm->current_snapshot) < 0)
         goto cleanup;
 
@@ -3462,8 +3462,8 @@ static int qemudStartVMDaemon(virConnectPtr conn,
         VIR_WARN("Unable to seek to end of logfile: %s",
                  virStrerror(errno, ebuf, sizeof ebuf));
 
-    for (i = 0 ; i < ntapfds ; i++)
-        FD_SET(tapfds[i], &keepfd);
+    for (i = 0 ; i < nvmfds ; i++)
+        FD_SET(vmfds[i], &keepfd);
 
     ret = virExecDaemonize(argv, progenv, &keepfd, &child,
                            stdin_fd, &logfile, &logfile,
@@ -3504,11 +3504,11 @@ static int qemudStartVMDaemon(virConnectPtr conn,
     if (ret == -1) /* The VM failed to start; tear filters before taps */
         virNWFilterTearVMNWFilters(vm);
 
-    if (tapfds) {
-        for (i = 0 ; i < ntapfds ; i++) {
-            close(tapfds[i]);
+    if (vmfds) {
+        for (i = 0 ; i < nvmfds ; i++) {
+            close(vmfds[i]);
         }
-        VIR_FREE(tapfds);
+        VIR_FREE(vmfds);
     }
 
     if (ret == -1) /* The VM failed to start */


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