[v5] migration: Improve error reporting

[PATCH for-9.1 v5 12/14] migration: Add Error** argument to ram_state_init()

Cédric Le Goater posted 14 patches 1 year, 10 months ago

Diff against v1 v2 v3 v4
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Maintainers: Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Nicholas Piggin <npiggin@gmail.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Eric Farman <farman@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>, Peter Xu <peterx@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Fabiano Rosas <farosas@suse.de>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>, Eric Blake <eblake@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, John Snow <jsnow@redhat.com>, Hyman Huang <yong.huang@smartx.com>

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[PATCH for-9.1 v5 12/14] migration: Add Error** argument to ram_state_init()

Posted by Cédric Le Goater 1 year, 10 months ago

Since the return value not exploited, follow the recommendations of
qapi/error.h and change it to a bool

Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 migration/ram.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/migration/ram.c b/migration/ram.c
index bade3e9281ae839578033524b800dcf3c6f486dc..26ce11a3379056d38062c1fb63166c6e3155bd8c 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2780,13 +2780,13 @@ err_out:
     return -ENOMEM;
 }
 
-static int ram_state_init(RAMState **rsp)
+static bool ram_state_init(RAMState **rsp, Error **errp)
 {
     *rsp = g_try_new0(RAMState, 1);
 
     if (!*rsp) {
-        error_report("%s: Init ramstate fail", __func__);
-        return -1;
+        error_setg(errp, "%s: Init ramstate fail", __func__);
+        return false;
     }
 
     qemu_mutex_init(&(*rsp)->bitmap_mutex);
@@ -2802,7 +2802,7 @@ static int ram_state_init(RAMState **rsp)
     (*rsp)->migration_dirty_pages = (*rsp)->ram_bytes_total >> TARGET_PAGE_BITS;
     ram_state_reset(*rsp);
 
-    return 0;
+    return true;
 }
 
 static void ram_list_init_bitmaps(void)
@@ -2897,7 +2897,10 @@ out_unlock:
 
 static int ram_init_all(RAMState **rsp)
 {
-    if (ram_state_init(rsp)) {
+    Error *local_err = NULL;
+
+    if (!ram_state_init(rsp, &local_err)) {
+        error_report_err(local_err);
         return -1;
     }
 
@@ -3624,7 +3627,11 @@ void ram_handle_zero(void *host, uint64_t size)
 
 static void colo_init_ram_state(void)
 {
-    ram_state_init(&ram_state);
+    Error *local_err = NULL;
+
+    if (!ram_state_init(&ram_state, &local_err)) {
+        error_report_err(local_err);
+    }
 }
 
 /*
-- 
2.44.0

Re: [PATCH for-9.1 v5 12/14] migration: Add Error** argument to ram_state_init()

Posted by Fabiano Rosas 1 year, 10 months ago

Cédric Le Goater <clg@redhat.com> writes:

> Since the return value not exploited, follow the recommendations of
> qapi/error.h and change it to a bool
>
> Signed-off-by: Cédric Le Goater <clg@redhat.com>

Reviewed-by: Fabiano Rosas <farosas@suse.de>