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From: Scott Cheloha <cheloha@linux.vnet.ibm.com>
To: qemu-devel@nongnu.org
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>,
	Juan Quintela <quintela@redhat.com>
Subject: [PATCH v2 1/2] migration: add savevm_state_handler_remove()
Date: Thu, 17 Oct 2019 15:59:52 -0500
Message-ID: <20191017205953.13122-2-cheloha@linux.vnet.ibm.com> (raw)
In-Reply-To: <20191017205953.13122-1-cheloha@linux.vnet.ibm.com>

Create a function to abstract common logic needed when removing a
SaveStateEntry element from the savevm_state.handlers queue.

For now we just remove the element.  Soon it will involve additional
cleanup.

Signed-off-by: Scott Cheloha <cheloha@linux.vnet.ibm.com>
---
 migration/savevm.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/migration/savevm.c b/migration/savevm.c
index 8d95e261f6..b2e3b7222a 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -725,6 +725,11 @@ static void savevm_state_handler_insert(SaveStateEntry *nse)
     }
 }
 
+static void savevm_state_handler_remove(SaveStateEntry *se)
+{
+    QTAILQ_REMOVE(&savevm_state.handlers, se, entry);
+}
+
 /* TODO: Individual devices generally have very little idea about the rest
    of the system, so instance_id should be removed/replaced.
    Meanwhile pass -1 as instance_id if you do not already have a clearly
@@ -777,7 +782,7 @@ void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque)
 
     QTAILQ_FOREACH_SAFE(se, &savevm_state.handlers, entry, new_se) {
         if (strcmp(se->idstr, id) == 0 && se->opaque == opaque) {
-            QTAILQ_REMOVE(&savevm_state.handlers, se, entry);
+            savevm_state_handler_remove(se);
             g_free(se->compat);
             g_free(se);
         }
@@ -841,7 +846,7 @@ void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
 
     QTAILQ_FOREACH_SAFE(se, &savevm_state.handlers, entry, new_se) {
         if (se->vmsd == vmsd && se->opaque == opaque) {
-            QTAILQ_REMOVE(&savevm_state.handlers, se, entry);
+            savevm_state_handler_remove(se);
             g_free(se->compat);
             g_free(se);
         }
-- 
2.23.0



  reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-17 20:59 [PATCH v2 0/2] migration: faster savevm_state_handler_insert() Scott Cheloha
2019-10-17 20:59 ` Scott Cheloha [this message]
2019-12-04 16:43   ` [PATCH v2 1/2] migration: add savevm_state_handler_remove() Dr. David Alan Gilbert
2020-01-08 19:07   ` Juan Quintela
2019-10-17 20:59 ` [PATCH v2 2/2] migration: savevm_state_handler_insert: constant-time element insertion Scott Cheloha
2019-10-18  8:16   ` Dr. David Alan Gilbert
2019-10-18  8:34     ` Laurent Vivier
2019-10-18  9:43       ` Dr. David Alan Gilbert
2019-10-18 16:38         ` Michael Roth
2019-10-18 17:26           ` Dr. David Alan Gilbert
2019-10-21  7:33           ` David Gibson
2019-10-19 10:12         ` David Gibson
2019-10-21  8:14           ` Dr. David Alan Gilbert
2019-11-20 21:48             ` Scott Cheloha
2019-12-04 16:49               ` Dr. David Alan Gilbert
2019-12-04 22:28                 ` David Gibson
2019-12-04 16:47   ` Dr. David Alan Gilbert

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