[Qemu-devel] [PULL 0/3] Block patches for 2.12-rc2

[Qemu-devel] [PULL 0/3] Block patches for 2.12-rc2

[Jeff Cody]

The following changes since commit f184de7553272223d6af731d7d623a7cebf710b5:

  Merge remote-tracking branch 'remotes/riscv/tags/riscv-qemu-2.12-critical-fixes' into staging (2018-03-31 09:42:33 +0100)

are available in the git repository at:

  git://github.com/codyprime/qemu-kvm-jtc.git tags/block-pull-request

for you to fetch changes up to 9dae635afa98f83688806861cefe77ff1b4d76a8:

  gluster: Fix blockdev-add with server.N.type=unix (2018-04-03 09:57:14 -0400)

----------------------------------------------------------------
Blockjob and Gluster patches
----------------------------------------------------------------

Kevin Wolf (1):
  gluster: Fix blockdev-add with server.N.type=unix

Marc-André Lureau (2):
  blockjob: leak fix, remove from txn when failing early
  blockjob: use qapi enum helpers

 block/gluster.c | 21 +++++++++++++++++----
 blockjob.c      | 28 +++++++++++++++++-----------
 2 files changed, 34 insertions(+), 15 deletions(-)

-- 
2.13.6

[Qemu-devel] [PULL 1/3] blockjob: leak fix, remove from txn when failing early

[Jeff Cody]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

This fixes leaks found by ASAN such as:
  GTESTER tests/test-blockjob
=================================================================
==31442==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 24 byte(s) in 1 object(s) allocated from:
    #0 0x7f88483cba38 in __interceptor_calloc (/lib64/libasan.so.4+0xdea38)
    #1 0x7f8845e1bd77 in g_malloc0 ../glib/gmem.c:129
    #2 0x7f8845e1c04b in g_malloc0_n ../glib/gmem.c:360
    #3 0x5584d2732498 in block_job_txn_new /home/elmarco/src/qemu/blockjob.c:172
    #4 0x5584d2739b28 in block_job_create /home/elmarco/src/qemu/blockjob.c:973
    #5 0x5584d270ae31 in mk_job /home/elmarco/src/qemu/tests/test-blockjob.c:34
    #6 0x5584d270b1c1 in do_test_id /home/elmarco/src/qemu/tests/test-blockjob.c:57
    #7 0x5584d270b65c in test_job_ids /home/elmarco/src/qemu/tests/test-blockjob.c:118
    #8 0x7f8845e40b69 in test_case_run ../glib/gtestutils.c:2255
    #9 0x7f8845e40f29 in g_test_run_suite_internal ../glib/gtestutils.c:2339
    #10 0x7f8845e40fd2 in g_test_run_suite_internal ../glib/gtestutils.c:2351
    #11 0x7f8845e411e9 in g_test_run_suite ../glib/gtestutils.c:2426
    #12 0x7f8845e3fe72 in g_test_run ../glib/gtestutils.c:1692
    #13 0x5584d270d6e2 in main /home/elmarco/src/qemu/tests/test-blockjob.c:377
    #14 0x7f8843641f29 in __libc_start_main (/lib64/libc.so.6+0x20f29)

Add an assert to make sure that the job doesn't have associated txn before free().

[Jeff Cody: N.B., used updated patch provided by John Snow]

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
---
 blockjob.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/blockjob.c b/blockjob.c
index ef3ed69ff1..c510a9fde5 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -204,6 +204,15 @@ void block_job_txn_add_job(BlockJobTxn *txn, BlockJob *job)
     block_job_txn_ref(txn);
 }
 
+static void block_job_txn_del_job(BlockJob *job)
+{
+    if (job->txn) {
+        QLIST_REMOVE(job, txn_list);
+        block_job_txn_unref(job->txn);
+        job->txn = NULL;
+    }
+}
+
 static void block_job_pause(BlockJob *job)
 {
     job->pause_count++;
@@ -232,6 +241,7 @@ void block_job_unref(BlockJob *job)
 {
     if (--job->refcnt == 0) {
         assert(job->status == BLOCK_JOB_STATUS_NULL);
+        assert(!job->txn);
         BlockDriverState *bs = blk_bs(job->blk);
         QLIST_REMOVE(job, job_list);
         bs->job = NULL;
@@ -392,6 +402,7 @@ static void block_job_decommission(BlockJob *job)
     job->busy = false;
     job->paused = false;
     job->deferred_to_main_loop = true;
+    block_job_txn_del_job(job);
     block_job_state_transition(job, BLOCK_JOB_STATUS_NULL);
     block_job_unref(job);
 }
@@ -481,8 +492,7 @@ static int block_job_finalize_single(BlockJob *job)
         }
     }
 
-    QLIST_REMOVE(job, txn_list);
-    block_job_txn_unref(job->txn);
+    block_job_txn_del_job(job);
     block_job_conclude(job);
     return 0;
 }
-- 
2.13.6

[Qemu-devel] [PULL 2/3] blockjob: use qapi enum helpers

[Jeff Cody]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

QAPI generator provide #define helpers for looking up enum string.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180327153011.29569-1-marcandre.lureau@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
---
 blockjob.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/blockjob.c b/blockjob.c
index c510a9fde5..27f957e571 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -75,10 +75,8 @@ static void block_job_state_transition(BlockJob *job, BlockJobStatus s1)
     assert(s1 >= 0 && s1 <= BLOCK_JOB_STATUS__MAX);
     trace_block_job_state_transition(job, job->ret, BlockJobSTT[s0][s1] ?
                                      "allowed" : "disallowed",
-                                     qapi_enum_lookup(&BlockJobStatus_lookup,
-                                                      s0),
-                                     qapi_enum_lookup(&BlockJobStatus_lookup,
-                                                      s1));
+                                     BlockJobStatus_str(s0),
+                                     BlockJobStatus_str(s1));
     assert(BlockJobSTT[s0][s1]);
     job->status = s1;
 }
@@ -86,17 +84,15 @@ static void block_job_state_transition(BlockJob *job, BlockJobStatus s1)
 static int block_job_apply_verb(BlockJob *job, BlockJobVerb bv, Error **errp)
 {
     assert(bv >= 0 && bv <= BLOCK_JOB_VERB__MAX);
-    trace_block_job_apply_verb(job, qapi_enum_lookup(&BlockJobStatus_lookup,
-                                                     job->status),
-                               qapi_enum_lookup(&BlockJobVerb_lookup, bv),
+    trace_block_job_apply_verb(job, BlockJobStatus_str(job->status),
+                               BlockJobVerb_str(bv),
                                BlockJobVerbTable[bv][job->status] ?
                                "allowed" : "prohibited");
     if (BlockJobVerbTable[bv][job->status]) {
         return 0;
     }
     error_setg(errp, "Job '%s' in state '%s' cannot accept command verb '%s'",
-               job->id, qapi_enum_lookup(&BlockJobStatus_lookup, job->status),
-               qapi_enum_lookup(&BlockJobVerb_lookup, bv));
+               job->id, BlockJobStatus_str(job->status), BlockJobVerb_str(bv));
     return -EPERM;
 }
 
-- 
2.13.6

[Qemu-devel] [PULL 3/3] gluster: Fix blockdev-add with server.N.type=unix

[Jeff Cody]

From: Kevin Wolf <kwolf@redhat.com>

The legacy command line interface gets the socket path from an option
called 'socket'. QAPI in contract uses SocketAddress, where the
corresponding option is called 'path'.

Fix the gluster block driver to accept both 'socket' and 'path', with
'path' being the preferred syntax.

https://bugzilla.redhat.com/show_bug.cgi?id=1545155

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 20180403110810.25624-1-kwolf@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
---
 block/gluster.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/block/gluster.c b/block/gluster.c
index 296e036b3d..4adc1a875b 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -167,7 +167,12 @@ static QemuOptsList runtime_unix_opts = {
         {
             .name = GLUSTER_OPT_SOCKET,
             .type = QEMU_OPT_STRING,
-            .help = "socket file path)",
+            .help = "socket file path (legacy)",
+        },
+        {
+            .name = GLUSTER_OPT_PATH,
+            .type = QEMU_OPT_STRING,
+            .help = "socket file path (QAPI)",
         },
         { /* end of list */ }
     },
@@ -615,10 +620,18 @@ static int qemu_gluster_parse_json(BlockdevOptionsGluster *gconf,
                 goto out;
             }
 
-            ptr = qemu_opt_get(opts, GLUSTER_OPT_SOCKET);
+            ptr = qemu_opt_get(opts, GLUSTER_OPT_PATH);
+            if (!ptr) {
+                ptr = qemu_opt_get(opts, GLUSTER_OPT_SOCKET);
+            } else if (qemu_opt_get(opts, GLUSTER_OPT_SOCKET)) {
+                error_setg(&local_err,
+                           "Conflicting parameters 'path' and 'socket'");
+                error_append_hint(&local_err, GERR_INDEX_HINT, i);
+                goto out;
+            }
             if (!ptr) {
                 error_setg(&local_err, QERR_MISSING_PARAMETER,
-                           GLUSTER_OPT_SOCKET);
+                           GLUSTER_OPT_PATH);
                 error_append_hint(&local_err, GERR_INDEX_HINT, i);
                 goto out;
             }
@@ -684,7 +697,7 @@ static int qemu_gluster_parse(BlockdevOptionsGluster *gconf,
                              "file.server.0.host=1.2.3.4,"
                              "file.server.0.port=24007,"
                              "file.server.1.transport=unix,"
-                             "file.server.1.socket=/var/run/glusterd.socket ..."
+                             "file.server.1.path=/var/run/glusterd.socket ..."
                              "\n");
             return ret;
         }
-- 
2.13.6

Re: [Qemu-devel] [PULL 0/3] Block patches for 2.12-rc2

[Peter Maydell]

On 3 April 2018 at 17:13, Jeff Cody <jcody@redhat.com> wrote:
> The following changes since commit f184de7553272223d6af731d7d623a7cebf710b5:
>
>   Merge remote-tracking branch 'remotes/riscv/tags/riscv-qemu-2.12-critical-fixes' into staging (2018-03-31 09:42:33 +0100)
>
> are available in the git repository at:
>
>   git://github.com/codyprime/qemu-kvm-jtc.git tags/block-pull-request
>
> for you to fetch changes up to 9dae635afa98f83688806861cefe77ff1b4d76a8:
>
>   gluster: Fix blockdev-add with server.N.type=unix (2018-04-03 09:57:14 -0400)
>
> ----------------------------------------------------------------
> Blockjob and Gluster patches
> ----------------------------------------------------------------
>
> Kevin Wolf (1):
>   gluster: Fix blockdev-add with server.N.type=unix
>
> Marc-André Lureau (2):
>   blockjob: leak fix, remove from txn when failing early
>   blockjob: use qapi enum helpers
>
>  block/gluster.c | 21 +++++++++++++++++----
>  blockjob.c      | 28 +++++++++++++++++-----------
>  2 files changed, 34 insertions(+), 15 deletions(-)

Applied, thanks.

-- PMM