[Qemu-devel] [PULL 0/1] Block patches
[PULL 0/3] Block patches
1
The following changes since commit 4100a344eb3d50d88f9da85cae334afc47aee134:
1
The following changes since commit 9c125d17e9402c232c46610802e5931b3639d77b:
2
2
3
Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20170202' into staging (2017-02-03 12:31:40 +0000)
3
Merge tag 'pull-tcg-20220420' of https://gitlab.com/rth7680/qemu into staging (2022-04-20 16:43:11 -0700)
4
4
5
are available in the git repository at:
5
are available in the Git repository at:
6
6
7
git://github.com/stefanha/qemu.git tags/block-pull-request
7
https://gitlab.com/stefanha/qemu.git tags/block-pull-request
8
8
9
for you to fetch changes up to cdd7abfdba9287a289c404dfdcb02316f9ffee7d:
9
for you to fetch changes up to d45c83328feab2e4083991693160f0a417cfd9b0:
10
10
11
iothread: enable AioContext polling by default (2017-02-03 14:23:38 +0000)
11
virtiofsd: Add docs/helper for killpriv_v2/no_killpriv_v2 option (2022-04-21 12:05:15 +0200)
12
13
----------------------------------------------------------------
14
Pull request
15
16
Small contrib/vhost-user-blk, contrib/vhost-user-scsi, and tools/virtiofsd
17
improvements.
12
18
13
----------------------------------------------------------------
19
----------------------------------------------------------------
14
20
15
----------------------------------------------------------------
21
Liu Yiding (1):
22
virtiofsd: Add docs/helper for killpriv_v2/no_killpriv_v2 option
23
24
Sakshi Kaushik (1):
25
Implements Backend Program conventions for vhost-user-scsi
16
26
17
Stefan Hajnoczi (1):
27
Stefan Hajnoczi (1):
18
iothread: enable AioContext polling by default
28
contrib/vhost-user-blk: add missing GOptionEntry NULL terminator
19
29
20
iothread.c | 14 ++++++++++++++
30
docs/tools/virtiofsd.rst | 5 ++
21
1 file changed, 14 insertions(+)
31
contrib/vhost-user-blk/vhost-user-blk.c | 3 +-
32
contrib/vhost-user-scsi/vhost-user-scsi.c | 77 +++++++++++++++--------
33
tools/virtiofsd/helper.c | 3 +
34
4 files changed, 62 insertions(+), 26 deletions(-)
22
35
23
--
36
--
24
2.9.3
37
2.35.1
25
26
diff view generated by jsdifflib
New patch
[PULL 1/3] Implements Backend Program conventions for vhost-user-scsi
1
From: Sakshi Kaushik <sakshikaushik717@gmail.com>
1
2
3
Signed-off-by: Sakshi Kaushik <sakshikaushik717@gmail.com>
4
Message-id: 20220406162410.8536-1-sakshikaushik717@gmail.com
5
6
[Name the iSCSI URL long option --iscsi-uri instead of --iscsi_uri for
7
consistency, fix --fd which was rejected due to an outdated
8
--socket-path check, and add missing entries[] terminator.
9
--Stefan]
10
11
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
12
---
13
contrib/vhost-user-scsi/vhost-user-scsi.c | 77 +++++++++++++++--------
14
1 file changed, 52 insertions(+), 25 deletions(-)
15
16
diff --git a/contrib/vhost-user-scsi/vhost-user-scsi.c b/contrib/vhost-user-scsi/vhost-user-scsi.c
17
index XXXXXXX..XXXXXXX 100644
18
--- a/contrib/vhost-user-scsi/vhost-user-scsi.c
19
+++ b/contrib/vhost-user-scsi/vhost-user-scsi.c
20
@@ -XXX,XX +XXX,XX @@ fail:
21
22
/** vhost-user-scsi **/
23
24
+static int opt_fdnum = -1;
25
+static char *opt_socket_path;
26
+static gboolean opt_print_caps;
27
+static char *iscsi_uri;
28
+
29
+static GOptionEntry entries[] = {
30
+ { "print-capabilities", 'c', 0, G_OPTION_ARG_NONE, &opt_print_caps,
31
+ "Print capabilities", NULL },
32
+ { "fd", 'f', 0, G_OPTION_ARG_INT, &opt_fdnum,
33
+ "Use inherited fd socket", "FDNUM" },
34
+ { "iscsi-uri", 'i', 0, G_OPTION_ARG_FILENAME, &iscsi_uri,
35
+ "iSCSI URI to connect to", "FDNUM" },
36
+ { "socket-path", 's', 0, G_OPTION_ARG_FILENAME, &opt_socket_path,
37
+ "Use UNIX socket path", "PATH" },
38
+ { NULL, }
39
+};
40
+
41
int main(int argc, char **argv)
42
{
43
VusDev *vdev_scsi = NULL;
44
- char *unix_fn = NULL;
45
- char *iscsi_uri = NULL;
46
- int lsock = -1, csock = -1, opt, err = EXIT_SUCCESS;
47
+ int lsock = -1, csock = -1, err = EXIT_SUCCESS;
48
49
- while ((opt = getopt(argc, argv, "u:i:")) != -1) {
50
- switch (opt) {
51
- case 'h':
52
- goto help;
53
- case 'u':
54
- unix_fn = g_strdup(optarg);
55
- break;
56
- case 'i':
57
- iscsi_uri = g_strdup(optarg);
58
- break;
59
- default:
60
- goto help;
61
- }
62
+ GError *error = NULL;
63
+ GOptionContext *context;
64
+
65
+ context = g_option_context_new(NULL);
66
+ g_option_context_add_main_entries(context, entries, NULL);
67
+ if (!g_option_context_parse(context, &argc, &argv, &error)) {
68
+ g_printerr("Option parsing failed: %s\n", error->message);
69
+ exit(EXIT_FAILURE);
70
+ }
71
+
72
+ if (opt_print_caps) {
73
+ g_print("{\n");
74
+ g_print(" \"type\": \"scsi\"\n");
75
+ g_print("}\n");
76
+ goto out;
77
}
78
- if (!unix_fn || !iscsi_uri) {
79
+
80
+ if (!iscsi_uri) {
81
goto help;
82
}
83
84
- lsock = unix_sock_new(unix_fn);
85
- if (lsock < 0) {
86
- goto err;
87
+ if (opt_socket_path) {
88
+ lsock = unix_sock_new(opt_socket_path);
89
+ if (lsock < 0) {
90
+ exit(EXIT_FAILURE);
91
+ }
92
+ } else if (opt_fdnum < 0) {
93
+ g_print("%s\n", g_option_context_get_help(context, true, NULL));
94
+ exit(EXIT_FAILURE);
95
+ } else {
96
+ lsock = opt_fdnum;
97
}
98
99
csock = accept(lsock, NULL, NULL);
100
@@ -XXX,XX +XXX,XX @@ out:
101
if (vdev_scsi) {
102
g_main_loop_unref(vdev_scsi->loop);
103
g_free(vdev_scsi);
104
- unlink(unix_fn);
105
+ unlink(opt_socket_path);
106
}
107
if (csock >= 0) {
108
close(csock);
109
@@ -XXX,XX +XXX,XX @@ out:
110
if (lsock >= 0) {
111
close(lsock);
112
}
113
- g_free(unix_fn);
114
+ g_free(opt_socket_path);
115
g_free(iscsi_uri);
116
117
return err;
118
@@ -XXX,XX +XXX,XX @@ err:
119
goto out;
120
121
help:
122
- fprintf(stderr, "Usage: %s [ -u unix_sock_path -i iscsi_uri ] | [ -h ]\n",
123
+ fprintf(stderr, "Usage: %s [ -s socket-path -i iscsi-uri -f fd -p print-capabilities ] | [ -h ]\n",
124
argv[0]);
125
- fprintf(stderr, " -u path to unix socket\n");
126
- fprintf(stderr, " -i iscsi uri for lun 0\n");
127
+ fprintf(stderr, " -s, --socket-path=SOCKET_PATH path to unix socket\n");
128
+ fprintf(stderr, " -i, --iscsi-uri=ISCSI_URI iscsi uri for lun 0\n");
129
+ fprintf(stderr, " -f, --fd=FILE_DESCRIPTOR file-descriptor\n");
130
+ fprintf(stderr, " -p, --print-capabilities=PRINT_CAPABILITIES denotes print-capabilities\n");
131
fprintf(stderr, " -h print help and quit\n");
132
133
goto err;
134
--
135
2.35.1
diff view generated by jsdifflib
New patch
[PULL 2/3] contrib/vhost-user-blk: add missing GOptionEntry NULL terminator
1
The GLib documentation says "a NULL-terminated array of GOptionEntrys"
2
so we'd better make sure there is a terminator that lets
3
g_option_context_add_main_entries() know when the end of the array has
4
been reached.
1
5
6
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
7
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
8
Message-id: 20220411150057.3009667-1-stefanha@redhat.com
9
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10
---
11
contrib/vhost-user-blk/vhost-user-blk.c | 3 ++-
12
1 file changed, 2 insertions(+), 1 deletion(-)
13
14
diff --git a/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-blk/vhost-user-blk.c
15
index XXXXXXX..XXXXXXX 100644
16
--- a/contrib/vhost-user-blk/vhost-user-blk.c
17
+++ b/contrib/vhost-user-blk/vhost-user-blk.c
18
@@ -XXX,XX +XXX,XX @@ static GOptionEntry entries[] = {
19
{"blk-file", 'b', 0, G_OPTION_ARG_FILENAME, &opt_blk_file,
20
"block device or file path", "PATH"},
21
{ "read-only", 'r', 0, G_OPTION_ARG_NONE, &opt_read_only,
22
- "Enable read-only", NULL }
23
+ "Enable read-only", NULL },
24
+ { NULL, },
25
};
26
27
int main(int argc, char **argv)
28
--
29
2.35.1
diff view generated by jsdifflib
[Qemu-devel] [PULL 1/1] iothread: enable AioContext polling by default
[PULL 3/3] virtiofsd: Add docs/helper for killpriv_v2/no_killpriv_v2 option
1
IOThread AioContexts are likely to consist only of event sources like
1
From: Liu Yiding <liuyd.fnst@fujitsu.com>
2
virtqueue ioeventfds and LinuxAIO completion eventfds that are pollable
3
from userspace (without system calls).
4
2
5
We recently merged the AioContext polling feature but didn't enable it
3
virtiofsd has introduced killpriv_v2/no_killpriv_v2 for a while. Add
6
by default yet. I have gone back over the performance data on the
4
description of it to docs/helper.
7
mailing list and picked a default polling value that gave good results.
8
5
9
Let's enable AioContext polling by default so users don't have another
6
Signed-off-by: Liu Yiding <liuyd.fnst@fujitsu.com>
10
switch they need to set manually. If performance regressions are found
7
Message-Id: <20220421095151.2231099-1-liuyd.fnst@fujitsu.com>
11
we can still disable this for the QEMU 2.9 release.
12
8
13
Cc: Paolo Bonzini <pbonzini@redhat.com>
9
[Small documentation fixes: s/as client supports/as the client supports/
14
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
10
and s/. /. /.
15
Cc: Karl Rister <krister@redhat.com>
11
--Stefan]
16
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
12
17
Message-id: 20170126170119.27876-1-stefanha@redhat.com
18
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
13
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
19
---
14
---
20
iothread.c | 14 ++++++++++++++
15
docs/tools/virtiofsd.rst | 5 +++++
21
1 file changed, 14 insertions(+)
16
tools/virtiofsd/helper.c | 3 +++
17
2 files changed, 8 insertions(+)
22
18
23
diff --git a/iothread.c b/iothread.c
19
diff --git a/docs/tools/virtiofsd.rst b/docs/tools/virtiofsd.rst
24
index XXXXXXX..XXXXXXX 100644
20
index XXXXXXX..XXXXXXX 100644
25
--- a/iothread.c
21
--- a/docs/tools/virtiofsd.rst
26
+++ b/iothread.c
22
+++ b/docs/tools/virtiofsd.rst
27
@@ -XXX,XX +XXX,XX @@ typedef ObjectClass IOThreadClass;
23
@@ -XXX,XX +XXX,XX @@ Options
28
#define IOTHREAD_CLASS(klass) \
24
label. Server will try to set that label on newly created file
29
OBJECT_CLASS_CHECK(IOThreadClass, klass, TYPE_IOTHREAD)
25
atomically wherever possible.
30
26
31
+/* Benchmark results from 2016 on NVMe SSD drives show max polling times around
27
+ * killpriv_v2|no_killpriv_v2 -
32
+ * 16-32 microseconds yield IOPS improvements for both iodepth=1 and iodepth=32
28
+ Enable/disable ``FUSE_HANDLE_KILLPRIV_V2`` support. KILLPRIV_V2 is enabled
33
+ * workloads.
29
+ by default as long as the client supports it. Enabling this option helps
34
+ */
30
+ with performance in write path.
35
+#define IOTHREAD_POLL_MAX_NS_DEFAULT 32768ULL
36
+
31
+
37
static __thread IOThread *my_iothread;
32
.. option:: --socket-path=PATH
38
33
39
AioContext *qemu_get_current_aio_context(void)
34
Listen on vhost-user UNIX domain socket at PATH.
40
@@ -XXX,XX +XXX,XX @@ static int iothread_stop(Object *object, void *opaque)
35
diff --git a/tools/virtiofsd/helper.c b/tools/virtiofsd/helper.c
41
return 0;
36
index XXXXXXX..XXXXXXX 100644
37
--- a/tools/virtiofsd/helper.c
38
+++ b/tools/virtiofsd/helper.c
39
@@ -XXX,XX +XXX,XX @@ void fuse_cmdline_help(void)
40
" -o announce_submounts Announce sub-mount points to the guest\n"
41
" -o posix_acl/no_posix_acl Enable/Disable posix_acl. (default: disabled)\n"
42
" -o security_label/no_security_label Enable/Disable security label. (default: disabled)\n"
43
+ " -o killpriv_v2/no_killpriv_v2\n"
44
+ " Enable/Disable FUSE_HANDLE_KILLPRIV_V2.\n"
45
+ " (default: enabled as long as client supports it)\n"
46
);
42
}
47
}
43
48
44
+static void iothread_instance_init(Object *obj)
45
+{
46
+ IOThread *iothread = IOTHREAD(obj);
47
+
48
+ iothread->poll_max_ns = IOTHREAD_POLL_MAX_NS_DEFAULT;
49
+}
50
+
51
static void iothread_instance_finalize(Object *obj)
52
{
53
IOThread *iothread = IOTHREAD(obj);
54
@@ -XXX,XX +XXX,XX @@ static const TypeInfo iothread_info = {
55
.parent = TYPE_OBJECT,
56
.class_init = iothread_class_init,
57
.instance_size = sizeof(IOThread),
58
+ .instance_init = iothread_instance_init,
59
.instance_finalize = iothread_instance_finalize,
60
.interfaces = (InterfaceInfo[]) {
61
{TYPE_USER_CREATABLE},
62
--
49
--
63
2.9.3
50
2.35.1
64
65
diff view generated by jsdifflib

Patchew 2.1-devel-b67e4c2

© 2016 - 2025 Red Hat, Inc.