rpms/qemu-kvm
7
0
Fork 0
Code Issues Pull Requests Releases Activity

* Mon Mar 30 2020 Danilo Cesar Lemes de Paula <ddepaula@redhat.com> - 4.2.0-17.el8

Browse Source 
- kvm-block-pass-BlockDriver-reference-to-the-.bdrv_co_cre.patch [bz#1816007]
- kvm-block-trickle-down-the-fallback-image-creation-funct.patch [bz#1816007]
- kvm-Revert-mirror-Don-t-let-an-operation-wait-for-itself.patch [bz#1794692]
- kvm-mirror-Wait-only-for-in-flight-operations.patch [bz#1794692]
- Resolves: bz#1794692
  (Mirror block job stops making progress)
- Resolves: bz#1816007
  (qemu-img convert failed to convert with block device as target)
This commit is contained in:
Danilo C. L. de Paula 2020-03-30 19:34:47 +01:00
parent 828ffba1b7
commit 739c885ee5
5 changed files with 859 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

121
kvm-Revert-mirror-Don-t-let-an-operation-wait-for-itself.patch Normal file
View File

@ -0,0 +1,121 @@
From 71b5267ed33f9e60bc98acbabcbed62f01a96ff4 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 30 Mar 2020 11:19:23 +0100
Subject: [PATCH 3/4] Revert "mirror: Don't let an operation wait for itself"
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200330111924.22938-2-kwolf@redhat.com>
Patchwork-id: 94464
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/2] Revert "mirror: Don't let an operation wait for itself"
Bugzilla: 1794692
RH-Acked-by: Maxim Levitsky <mlevitsk@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
This reverts commit 7e6c4ff792734e196c8ca82564c56b5e7c6288ca.
The fix was incomplete as it only protected against requests waiting for
themselves, but not against requests waiting for each other. We need a
different solution.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 9178f4fe5f083064f5c91f04d98c815ce5a5af1c)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/mirror.c | 21 +++++++++------------
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index cacbc70..8959e42 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -283,14 +283,11 @@ static int mirror_cow_align(MirrorBlockJob *s, int64_t *offset,
}
static inline void coroutine_fn
-mirror_wait_for_any_operation(MirrorBlockJob *s, MirrorOp *self, bool active)
+mirror_wait_for_any_operation(MirrorBlockJob *s, bool active)
{
MirrorOp *op;
QTAILQ_FOREACH(op, &s->ops_in_flight, next) {
- if (self == op) {
- continue;
- }
/* Do not wait on pseudo ops, because it may in turn wait on
* some other operation to start, which may in fact be the
* caller of this function. Since there is only one pseudo op
@@ -305,10 +302,10 @@ mirror_wait_for_any_operation(MirrorBlockJob *s, MirrorOp *self, bool active)
}
static inline void coroutine_fn
-mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s, MirrorOp *self)
+mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s)
{
/* Only non-active operations use up in-flight slots */
- mirror_wait_for_any_operation(s, self, false);
+ mirror_wait_for_any_operation(s, false);
}
/* Perform a mirror copy operation.
@@ -351,7 +348,7 @@ static void coroutine_fn mirror_co_read(void *opaque)
while (s->buf_free_count < nb_chunks) {
trace_mirror_yield_in_flight(s, op->offset, s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, op);
+ mirror_wait_for_free_in_flight_slot(s);
}
/* Now make a QEMUIOVector taking enough granularity-sized chunks
@@ -558,7 +555,7 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
while (s->in_flight >= MAX_IN_FLIGHT) {
trace_mirror_yield_in_flight(s, offset, s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, pseudo_op);
+ mirror_wait_for_free_in_flight_slot(s);
}
if (s->ret < 0) {
@@ -612,7 +609,7 @@ static void mirror_free_init(MirrorBlockJob *s)
static void coroutine_fn mirror_wait_for_all_io(MirrorBlockJob *s)
{
while (s->in_flight > 0) {
- mirror_wait_for_free_in_flight_slot(s, NULL);
+ mirror_wait_for_free_in_flight_slot(s);
}
}
@@ -797,7 +794,7 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s)
if (s->in_flight >= MAX_IN_FLIGHT) {
trace_mirror_yield(s, UINT64_MAX, s->buf_free_count,
s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, NULL);
+ mirror_wait_for_free_in_flight_slot(s);
continue;
}
@@ -950,7 +947,7 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
/* Do not start passive operations while there are active
* writes in progress */
while (s->in_active_write_counter) {
- mirror_wait_for_any_operation(s, NULL, true);
+ mirror_wait_for_any_operation(s, true);
}
if (s->ret < 0) {
@@ -976,7 +973,7 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
if (s->in_flight >= MAX_IN_FLIGHT || s->buf_free_count == 0 ||
(cnt == 0 && s->in_flight > 0)) {
trace_mirror_yield(s, cnt, s->buf_free_count, s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, NULL);
+ mirror_wait_for_free_in_flight_slot(s);
continue;
} else if (cnt != 0) {
delay_ns = mirror_iteration(s);
--
1.8.3.1

328
kvm-block-pass-BlockDriver-reference-to-the-.bdrv_co_cre.patch Normal file
View File

@ -0,0 +1,328 @@
From 25c528b30f8774f33e957d14060805398da524d9 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Thu, 26 Mar 2020 20:23:06 +0000
Subject: [PATCH 1/4] block: pass BlockDriver reference to the .bdrv_co_create
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200326202307.9264-2-mlevitsk@redhat.com>
Patchwork-id: 94447
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/2] block: pass BlockDriver reference to the .bdrv_co_create
Bugzilla: 1816007
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
This will allow the reuse of a single generic .bdrv_co_create
implementation for several drivers.
No functional changes.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-2-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit b92902dfeaafbceaf744ab7473f2d070284f6172)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 3 ++-
block/crypto.c | 3 ++-
block/file-posix.c | 4 +++-
block/file-win32.c | 4 +++-
block/gluster.c | 3 ++-
block/nfs.c | 4 +++-
block/parallels.c | 3 ++-
block/qcow.c | 3 ++-
block/qcow2.c | 4 +++-
block/qed.c | 3 ++-
block/raw-format.c | 4 +++-
block/rbd.c | 3 ++-
block/sheepdog.c | 4 +++-
block/ssh.c | 4 +++-
block/vdi.c | 4 +++-
block/vhdx.c | 3 ++-
block/vmdk.c | 4 +++-
block/vpc.c | 6 ++++--
include/block/block_int.h | 3 ++-
19 files changed, 49 insertions(+), 20 deletions(-)
diff --git a/block.c b/block.c
index ec29b1e..f9a1c5b 100644
--- a/block.c
+++ b/block.c
@@ -482,7 +482,8 @@ static void coroutine_fn bdrv_create_co_entry(void *opaque)
CreateCo *cco = opaque;
assert(cco->drv);
- ret = cco->drv->bdrv_co_create_opts(cco->filename, cco->opts, &local_err);
+ ret = cco->drv->bdrv_co_create_opts(cco->drv,
+ cco->filename, cco->opts, &local_err);
error_propagate(&cco->err, local_err);
cco->ret = ret;
}
diff --git a/block/crypto.c b/block/crypto.c
index 2482383..970d463 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -539,7 +539,8 @@ fail:
return ret;
}
-static int coroutine_fn block_crypto_co_create_opts_luks(const char *filename,
+static int coroutine_fn block_crypto_co_create_opts_luks(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/file-posix.c b/block/file-posix.c
index fd29372..a2e0a74 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2346,7 +2346,9 @@ out:
return result;
}
-static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions options;
diff --git a/block/file-win32.c b/block/file-win32.c
index 77e8ff7..1585983 100644
--- a/block/file-win32.c
+++ b/block/file-win32.c
@@ -588,7 +588,9 @@ static int raw_co_create(BlockdevCreateOptions *options, Error **errp)
return 0;
}
-static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions options;
diff --git a/block/gluster.c b/block/gluster.c
index 4fa4a77..0aa1f2c 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -1130,7 +1130,8 @@ out:
return ret;
}
-static int coroutine_fn qemu_gluster_co_create_opts(const char *filename,
+static int coroutine_fn qemu_gluster_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/nfs.c b/block/nfs.c
index 9a6311e..cc2413d 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -662,7 +662,9 @@ out:
return ret;
}
-static int coroutine_fn nfs_file_co_create_opts(const char *url, QemuOpts *opts,
+static int coroutine_fn nfs_file_co_create_opts(BlockDriver *drv,
+ const char *url,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options;
diff --git a/block/parallels.c b/block/parallels.c
index 7a01997..6d4ed77 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -609,7 +609,8 @@ exit:
goto out;
}
-static int coroutine_fn parallels_co_create_opts(const char *filename,
+static int coroutine_fn parallels_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/qcow.c b/block/qcow.c
index fce8989..8973e4e 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -934,7 +934,8 @@ exit:
return ret;
}
-static int coroutine_fn qcow_co_create_opts(const char *filename,
+static int coroutine_fn qcow_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts, Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
diff --git a/block/qcow2.c b/block/qcow2.c
index 83b1fc0..71067c6 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3558,7 +3558,9 @@ out:
return ret;
}
-static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
diff --git a/block/qed.c b/block/qed.c
index d8c4e5f..1af9b3c 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -720,7 +720,8 @@ out:
return ret;
}
-static int coroutine_fn bdrv_qed_co_create_opts(const char *filename,
+static int coroutine_fn bdrv_qed_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/raw-format.c b/block/raw-format.c
index 3a76ec7..93b25e1 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -419,7 +419,9 @@ static int raw_has_zero_init_truncate(BlockDriverState *bs)
return bdrv_has_zero_init_truncate(bs->file->bs);
}
-static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
return bdrv_create_file(filename, opts, errp);
diff --git a/block/rbd.c b/block/rbd.c
index 027cbcc..8847259 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -425,7 +425,8 @@ static int qemu_rbd_co_create(BlockdevCreateOptions *options, Error **errp)
return qemu_rbd_do_create(options, NULL, NULL, errp);
}
-static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
+static int coroutine_fn qemu_rbd_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/sheepdog.c b/block/sheepdog.c
index cfa8433..a8a7e32 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -2157,7 +2157,9 @@ out:
return ret;
}
-static int coroutine_fn sd_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn sd_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
diff --git a/block/ssh.c b/block/ssh.c
index b4375cf..84e9282 100644
--- a/block/ssh.c
+++ b/block/ssh.c
@@ -963,7 +963,9 @@ fail:
return ret;
}
-static int coroutine_fn ssh_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn ssh_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options;
diff --git a/block/vdi.c b/block/vdi.c
index 0142da7..e1a11f2 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -896,7 +896,9 @@ static int coroutine_fn vdi_co_create(BlockdevCreateOptions *create_options,
return vdi_co_do_create(create_options, DEFAULT_CLUSTER_SIZE, errp);
}
-static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn vdi_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
QDict *qdict = NULL;
diff --git a/block/vhdx.c b/block/vhdx.c
index f02d261..33e57cd 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -2046,7 +2046,8 @@ delete_and_exit:
return ret;
}
-static int coroutine_fn vhdx_co_create_opts(const char *filename,
+static int coroutine_fn vhdx_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/vmdk.c b/block/vmdk.c
index 20e909d..eb726f2 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -2588,7 +2588,9 @@ exit:
return blk;
}
-static int coroutine_fn vmdk_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn vmdk_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
Error *local_err = NULL;
diff --git a/block/vpc.c b/block/vpc.c
index a655502..6df75e2 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -1089,8 +1089,10 @@ out:
return ret;
}
-static int coroutine_fn vpc_co_create_opts(const char *filename,
- QemuOpts *opts, Error **errp)
+static int coroutine_fn vpc_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
+ Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
QDict *qdict;
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 96e327b..7ff81be 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -136,7 +136,8 @@ struct BlockDriver {
void (*bdrv_close)(BlockDriverState *bs);
int coroutine_fn (*bdrv_co_create)(BlockdevCreateOptions *opts,
Error **errp);
- int coroutine_fn (*bdrv_co_create_opts)(const char *filename,
+ int coroutine_fn (*bdrv_co_create_opts)(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp);
int (*bdrv_make_empty)(BlockDriverState *bs);
--
1.8.3.1

296
kvm-block-trickle-down-the-fallback-image-creation-funct.patch Normal file
View File

@ -0,0 +1,296 @@
From a1f7b929ae1fe6fa424c520c3a5eb497333b0fd9 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Thu, 26 Mar 2020 20:23:07 +0000
Subject: [PATCH 2/4] block: trickle down the fallback image creation function
use to the block drivers
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200326202307.9264-3-mlevitsk@redhat.com>
Patchwork-id: 94446
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 2/2] block: trickle down the fallback image creation function use to the block drivers
Bugzilla: 1816007
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Instead of checking the .bdrv_co_create_opts to see if we need the
fallback, just implement the .bdrv_co_create_opts in the drivers that
need it.
This way we don't break various places that need to know if the
underlying protocol/format really supports image creation, and this way
we still allow some drivers to not support image creation.
Fixes: fd17146cd93d1704cd96d7c2757b325fc7aac6fd
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1816007
Note that technically this driver reverts the image creation fallback
for the vxhs driver since I don't have a means to test it, and IMHO it
is better to leave it not supported as it was prior to generic image
creation patches.
Also drop iscsi_create_opts which was left accidentally.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-3-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
[mreitz: Fixed alignment, and moved bdrv_co_create_opts_simple() and
bdrv_create_opts_simple from block.h into block_int.h]
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 5a5e7f8cd86b7ced0732b1b6e28c82baa65b09c9)
Contextual conflicts in block.c and include/block/block_int.h
(conflict in block.c by default shows as functional but
with --diff-algorithm=patience it becomes a contextual conflict)
...
001/2:[----] [--] 'block: pass BlockDriver reference to the .bdrv_co_create'
002/2:[0014] [FC] 'block: trickle down the fallback image creation function use to the block drivers'
...
002/2: 'meld <(git show 5a5e7f8^\!) <(git show 6d3bca5^\!)'
So now running:
meld <(git show 5a5e7f8^\! --diff-algorithm=patience) <(git show 6d3bca5^\! --diff-algorithm=patience)
shows no contextual conflicts
It is mostly due to missing commit f6dc1c31d3801dcbdf0c56574f9ff4f05180810c
Thanks to Max Reitz for helping me with this.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 35 ++++++++++++++++++++---------------
block/file-posix.c | 7 ++++++-
block/iscsi.c | 16 ++++------------
block/nbd.c | 6 ++++++
block/nvme.c | 3 +++
include/block/block.h | 1 +
include/block/block_int.h | 11 +++++++++++
7 files changed, 51 insertions(+), 28 deletions(-)
diff --git a/block.c b/block.c
index f9a1c5b..ba3b40d7 100644
--- a/block.c
+++ b/block.c
@@ -597,8 +597,15 @@ static int create_file_fallback_zero_first_sector(BlockBackend *blk,
return 0;
}
-static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
- QemuOpts *opts, Error **errp)
+/**
+ * Simple implementation of bdrv_co_create_opts for protocol drivers
+ * which only support creation via opening a file
+ * (usually existing raw storage device)
+ */
+int coroutine_fn bdrv_co_create_opts_simple(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
+ Error **errp)
{
BlockBackend *blk;
QDict *options;
@@ -662,11 +669,7 @@ int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp)
return -ENOENT;
}
- if (drv->bdrv_co_create_opts) {
- return bdrv_create(drv, filename, opts, errp);
- } else {
- return bdrv_create_file_fallback(filename, drv, opts, errp);
- }
+ return bdrv_create(drv, filename, opts, errp);
}
/**
@@ -1543,9 +1546,9 @@ QemuOptsList bdrv_runtime_opts = {
},
};
-static QemuOptsList fallback_create_opts = {
- .name = "fallback-create-opts",
- .head = QTAILQ_HEAD_INITIALIZER(fallback_create_opts.head),
+QemuOptsList bdrv_create_opts_simple = {
+ .name = "simple-create-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(bdrv_create_opts_simple.head),
.desc = {
{
.name = BLOCK_OPT_SIZE,
@@ -5910,13 +5913,15 @@ void bdrv_img_create(const char *filename, const char *fmt,
return;
}
- create_opts = qemu_opts_append(create_opts, drv->create_opts);
- if (proto_drv->create_opts) {
- create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
- } else {
- create_opts = qemu_opts_append(create_opts, &fallback_create_opts);
+ if (!proto_drv->create_opts) {
+ error_setg(errp, "Protocol driver '%s' does not support image creation",
+ proto_drv->format_name);
+ return;
}
+ create_opts = qemu_opts_append(create_opts, drv->create_opts);
+ create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
+
/* Create parameter list with default values */
opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size, &error_abort);
diff --git a/block/file-posix.c b/block/file-posix.c
index a2e0a74..dd18d40 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -3432,6 +3432,8 @@ static BlockDriver bdrv_host_device = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.mutable_opts = mutable_opts,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
.bdrv_co_pwrite_zeroes = hdev_co_pwrite_zeroes,
@@ -3558,10 +3560,11 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.mutable_opts = mutable_opts,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
-
.bdrv_co_preadv = raw_co_preadv,
.bdrv_co_pwritev = raw_co_pwritev,
.bdrv_co_flush_to_disk = raw_co_flush_to_disk,
@@ -3690,6 +3693,8 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.mutable_opts = mutable_opts,
.bdrv_co_preadv = raw_co_preadv,
diff --git a/block/iscsi.c b/block/iscsi.c
index b45da65..16b0716 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -2399,18 +2399,6 @@ out_unlock:
return r;
}
-static QemuOptsList iscsi_create_opts = {
- .name = "iscsi-create-opts",
- .head = QTAILQ_HEAD_INITIALIZER(iscsi_create_opts.head),
- .desc = {
- {
- .name = BLOCK_OPT_SIZE,
- .type = QEMU_OPT_SIZE,
- .help = "Virtual disk size"
- },
- { /* end of list */ }
- }
-};
static const char *const iscsi_strong_runtime_opts[] = {
"transport",
@@ -2434,6 +2422,8 @@ static BlockDriver bdrv_iscsi = {
.bdrv_parse_filename = iscsi_parse_filename,
.bdrv_file_open = iscsi_open,
.bdrv_close = iscsi_close,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_reopen_commit = iscsi_reopen_commit,
.bdrv_co_invalidate_cache = iscsi_co_invalidate_cache,
@@ -2471,6 +2461,8 @@ static BlockDriver bdrv_iser = {
.bdrv_parse_filename = iscsi_parse_filename,
.bdrv_file_open = iscsi_open,
.bdrv_close = iscsi_close,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_reopen_commit = iscsi_reopen_commit,
.bdrv_co_invalidate_cache = iscsi_co_invalidate_cache,
diff --git a/block/nbd.c b/block/nbd.c
index a73f0d9..927915d 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -2030,6 +2030,8 @@ static BlockDriver bdrv_nbd = {
.protocol_name = "nbd",
.instance_size = sizeof(BDRVNBDState),
.bdrv_parse_filename = nbd_parse_filename,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_file_open = nbd_open,
.bdrv_reopen_prepare = nbd_client_reopen_prepare,
.bdrv_co_preadv = nbd_client_co_preadv,
@@ -2055,6 +2057,8 @@ static BlockDriver bdrv_nbd_tcp = {
.protocol_name = "nbd+tcp",
.instance_size = sizeof(BDRVNBDState),
.bdrv_parse_filename = nbd_parse_filename,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_file_open = nbd_open,
.bdrv_reopen_prepare = nbd_client_reopen_prepare,
.bdrv_co_preadv = nbd_client_co_preadv,
@@ -2080,6 +2084,8 @@ static BlockDriver bdrv_nbd_unix = {
.protocol_name = "nbd+unix",
.instance_size = sizeof(BDRVNBDState),
.bdrv_parse_filename = nbd_parse_filename,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_file_open = nbd_open,
.bdrv_reopen_prepare = nbd_client_reopen_prepare,
.bdrv_co_preadv = nbd_client_co_preadv,
diff --git a/block/nvme.c b/block/nvme.c
index d41c4bd..7b7c0cc 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -1333,6 +1333,9 @@ static BlockDriver bdrv_nvme = {
.protocol_name = "nvme",
.instance_size = sizeof(BDRVNVMeState),
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
+
.bdrv_parse_filename = nvme_parse_filename,
.bdrv_file_open = nvme_file_open,
.bdrv_close = nvme_close,
diff --git a/include/block/block.h b/include/block/block.h
index 1df9848..92685d2 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -293,6 +293,7 @@ BlockDriver *bdrv_find_format(const char *format_name);
int bdrv_create(BlockDriver *drv, const char* filename,
QemuOpts *opts, Error **errp);
int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp);
+
BlockDriverState *bdrv_new(void);
void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
Error **errp);
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 7ff81be..529f153 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -1325,4 +1325,15 @@ int coroutine_fn bdrv_co_copy_range_to(BdrvChild *src, uint64_t src_offset,
int refresh_total_sectors(BlockDriverState *bs, int64_t hint);
+/**
+ * Simple implementation of bdrv_co_create_opts for protocol drivers
+ * which only support creation via opening a file
+ * (usually existing raw storage device)
+ */
+int coroutine_fn bdrv_co_create_opts_simple(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
+ Error **errp);
+extern QemuOptsList bdrv_create_opts_simple;
+
#endif /* BLOCK_INT_H */
--
1.8.3.1

95
kvm-mirror-Wait-only-for-in-flight-operations.patch Normal file
View File

@ -0,0 +1,95 @@
From bddf389330e11fb0ce17413c1bfa2264a281ded2 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 30 Mar 2020 11:19:24 +0100
Subject: [PATCH 4/4] mirror: Wait only for in-flight operations
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200330111924.22938-3-kwolf@redhat.com>
Patchwork-id: 94463
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 2/2] mirror: Wait only for in-flight operations
Bugzilla: 1794692
RH-Acked-by: Maxim Levitsky <mlevitsk@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
mirror_wait_for_free_in_flight_slot() just picks a random operation to
wait for. However, a MirrorOp is already in s->ops_in_flight when
mirror_co_read() waits for free slots, so if not enough slots are
immediately available, an operation can end up waiting for itself, or
two or more operations can wait for each other to complete, which
results in a hang.
Fix this by adding a flag to MirrorOp that tells us if the request is
already in flight (and therefore occupies slots that it will later
free), and picking only such operations for waiting.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1794692
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-3-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit ce8cabbd17cf738ddfc68384440c38e5dd2fdf97)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/mirror.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/block/mirror.c b/block/mirror.c
index 8959e42..5e5a521 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -102,6 +102,7 @@ struct MirrorOp {
bool is_pseudo_op;
bool is_active_write;
+ bool is_in_flight;
CoQueue waiting_requests;
Coroutine *co;
@@ -293,7 +294,9 @@ mirror_wait_for_any_operation(MirrorBlockJob *s, bool active)
* caller of this function. Since there is only one pseudo op
* at any given time, we will always find some real operation
* to wait on. */
- if (!op->is_pseudo_op && op->is_active_write == active) {
+ if (!op->is_pseudo_op && op->is_in_flight &&
+ op->is_active_write == active)
+ {
qemu_co_queue_wait(&op->waiting_requests, NULL);
return;
}
@@ -367,6 +370,7 @@ static void coroutine_fn mirror_co_read(void *opaque)
/* Copy the dirty cluster. */
s->in_flight++;
s->bytes_in_flight += op->bytes;
+ op->is_in_flight = true;
trace_mirror_one_iteration(s, op->offset, op->bytes);
ret = bdrv_co_preadv(s->mirror_top_bs->backing, op->offset, op->bytes,
@@ -382,6 +386,7 @@ static void coroutine_fn mirror_co_zero(void *opaque)
op->s->in_flight++;
op->s->bytes_in_flight += op->bytes;
*op->bytes_handled = op->bytes;
+ op->is_in_flight = true;
ret = blk_co_pwrite_zeroes(op->s->target, op->offset, op->bytes,
op->s->unmap ? BDRV_REQ_MAY_UNMAP : 0);
@@ -396,6 +401,7 @@ static void coroutine_fn mirror_co_discard(void *opaque)
op->s->in_flight++;
op->s->bytes_in_flight += op->bytes;
*op->bytes_handled = op->bytes;
+ op->is_in_flight = true;
ret = blk_co_pdiscard(op->s->target, op->offset, op->bytes);
mirror_write_complete(op, ret);
@@ -1306,6 +1312,7 @@ static MirrorOp *coroutine_fn active_write_prepare(MirrorBlockJob *s,
.offset = offset,
.bytes = bytes,
.is_active_write = true,
+ .is_in_flight = true,
};
qemu_co_queue_init(&op->waiting_requests);
QTAILQ_INSERT_TAIL(&s->ops_in_flight, op, next);
--
1.8.3.1

20
qemu-kvm.spec
View File

@ -67,7 +67,7 @@ Obsoletes: %1-rhev
Summary: QEMU is a machine emulator and virtualizer
Name: qemu-kvm
Version: 4.2.0
Release: 16%{?dist}
Release: 17%{?dist}
# Epoch because we pushed a qemu-1.0 package. AIUI this can't ever be dropped
Epoch: 15
License: GPLv2 and GPLv2+ and CC-BY
@ -621,6 +621,14 @@ Patch235: kvm-exec-rom_reset-Free-rom-data-during-inmigrate-skip.patch
Patch236: kvm-migration-Rate-limit-inside-host-pages.patch
# For bz#1811670 - Unneeded qemu-guest-agent dependency on pixman
Patch237: kvm-build-sys-do-not-make-qemu-ga-link-with-pixman.patch
# For bz#1816007 - qemu-img convert failed to convert with block device as target
Patch238: kvm-block-pass-BlockDriver-reference-to-the-.bdrv_co_cre.patch
# For bz#1816007 - qemu-img convert failed to convert with block device as target
Patch239: kvm-block-trickle-down-the-fallback-image-creation-funct.patch
# For bz#1794692 - Mirror block job stops making progress
Patch240: kvm-Revert-mirror-Don-t-let-an-operation-wait-for-itself.patch
# For bz#1794692 - Mirror block job stops making progress
Patch241: kvm-mirror-Wait-only-for-in-flight-operations.patch
BuildRequires: wget
BuildRequires: rpm-build
@ -1554,6 +1562,16 @@ useradd -r -u 107 -g qemu -G kvm -d / -s /sbin/nologin \
%changelog
* Mon Mar 30 2020 Danilo Cesar Lemes de Paula <ddepaula@redhat.com> - 4.2.0-17.el8
- kvm-block-pass-BlockDriver-reference-to-the-.bdrv_co_cre.patch [bz#1816007]
- kvm-block-trickle-down-the-fallback-image-creation-funct.patch [bz#1816007]
- kvm-Revert-mirror-Don-t-let-an-operation-wait-for-itself.patch [bz#1794692]
- kvm-mirror-Wait-only-for-in-flight-operations.patch [bz#1794692]
- Resolves: bz#1794692
(Mirror block job stops making progress)
- Resolves: bz#1816007
(qemu-img convert failed to convert with block device as target)
* Tue Mar 24 2020 Danilo Cesar Lemes de Paula <ddepaula@redhat.com> - 4.2.0-16.el8
- kvm-migration-Rate-limit-inside-host-pages.patch [bz#1814336]
- kvm-build-sys-do-not-make-qemu-ga-link-with-pixman.patch [bz#1811670]