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[Qemu-devel] [v1 Patch 1/10]Qemu: Enhance "info block" to display host c
From: |
Supriya Kannery |
Subject: |
[Qemu-devel] [v1 Patch 1/10]Qemu: Enhance "info block" to display host cache setting |
Date: |
Sat, 16 Jun 2012 02:17:01 +0530 |
Enhance "info block" to display hostcache setting for each
block device.
Example:
(qemu) info block
ide0-hd0: removable=0 file=../rhel6-32.raw ro=0 drv=raw encrypted=0
Enhanced to display "hostcache" setting:
(qemu) info block
ide0-hd0: removable=0 hostcache=1 file=../rhel6-32.raw ro=0 drv=raw encrypted=0
Signed-off-by: Supriya Kannery <address@hidden>
---
block.c | 20 ++++++++++++++++----
qmp-commands.hx | 2 ++
2 files changed, 18 insertions(+), 4 deletions(-)
Index: qemu/qapi-schema.json
===================================================================
--- qemu.orig/qapi-schema.json
+++ qemu/qapi-schema.json
@@ -447,6 +447,8 @@
# @locked: True if the guest has locked this device from having its media
# removed
#
+# @hostcache: True if host pagecache is enabled.
+#
# @tray_open: #optional True if the device has a tray and it is open
# (only present if removable is true)
#
@@ -460,7 +462,7 @@
##
{ 'type': 'BlockInfo',
'data': {'device': 'str', 'type': 'str', 'removable': 'bool',
- 'locked': 'bool', '*inserted': 'BlockDeviceInfo',
+ 'locked': 'bool','hostcache': 'bool', '*inserted':
'BlockDeviceInfo',
'*tray_open': 'bool', '*io-status': 'BlockDeviceIoStatus'} }
##
Index: qemu/block.c
===================================================================
--- qemu.orig/block.c
+++ qemu/block.c
@@ -2581,6 +2581,7 @@ BlockInfoList *qmp_query_block(Error **e
info->value->device = g_strdup(bs->device_name);
info->value->type = g_strdup("unknown");
info->value->locked = bdrv_dev_is_medium_locked(bs);
+ info->value->hostcache = !(bs->open_flags & BDRV_O_NOCACHE);
info->value->removable = bdrv_dev_has_removable_media(bs);
if (bdrv_dev_has_removable_media(bs)) {
Index: qemu/hmp.c
===================================================================
--- qemu.orig/hmp.c
+++ qemu/hmp.c
@@ -212,6 +212,8 @@ void hmp_info_block(Monitor *mon)
monitor_printf(mon, " tray-open=%d", info->value->tray_open);
}
+ monitor_printf(mon, " hostcache=%d", info->value->hostcache);
+
if (info->value->has_io_status) {
monitor_printf(mon, " io-status=%s",
BlockDeviceIoStatus_lookup[info->value->io_status]);
- [Qemu-devel] [v1 Patch 0/10]Qemu: Dynamic host pagecache change and image file reopen, Supriya Kannery, 2012/06/15
- [Qemu-devel] [v1 Patch 1/10]Qemu: Enhance "info block" to display host cache setting,
Supriya Kannery <=
- [Qemu-devel] [v1 Patch 3/10]Qemu: Cmd "block_set_hostcache" for dynamic cache change, Supriya Kannery, 2012/06/15
- [Qemu-devel] [v1 Patch 4/10]Qemu: Framework for reopening image files safely, Supriya Kannery, 2012/06/15
- [Qemu-devel] [v1 Patch 2/10]Qemu: Error classes for hostcache setting and data sync failures, Supriya Kannery, 2012/06/15
- [Qemu-devel] [v1 Patch 6/10]Qemu: raw-win32 image file reopen, Supriya Kannery, 2012/06/15
- [Qemu-devel] [v1 Patch 5/10]Qemu: raw-posix image file reopen, Supriya Kannery, 2012/06/15