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* [Qemu-devel] [PATCH 0/3 v3] allow online resizing of block devices
@ 2011-01-24 12:32 Christoph Hellwig
  2011-01-24 12:32 ` [Qemu-devel] [PATCH 1/3] block: add block_resize monitor command Christoph Hellwig
                   ` (4 more replies)
  0 siblings, 5 replies; 12+ messages in thread
From: Christoph Hellwig @ 2011-01-24 12:32 UTC (permalink / raw)
  To: qemu-devel

This patchset adds support for online resizing of block devices.

The first patch adds a new resize monitor command which call into
the existing image resize code.  This is the meat of the series
and probably needs quite a bit of review and help as I'm not sure
about how to implement the error handling for monitor commands
correctly.  Am I really supposed to add a new QERR_ definition
for each possible error?  And if yes how am I supposed to define
them?  The macros for them aren't exactly self-explaining.

The second patch adds a way to tell drivers about a resize, and the
third one adds a guest notification for config changes to virtio-blk
which allows the guest to pick it up without a rescan.  I've just sent
the corresponding Linux guest driver patch to Rusty.

Changes from version 2 to version 3:
 - add missing braces
 - use device as the argument name for the device string
 - also rename the HMP version of the command to block_resize

Changes from version 1 to version 2:
 - also add a QMP command (block_resize)
 - use the o format for the size in the monitor command
 - fix typos
 - use QERR_UNDEFINED_ERROR for errors instead of unstructured strings
 - remove the CDROM hint check
 - add a reason argument to the change callback
---end quoted text---

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [Qemu-devel] [PATCH 0/3 v2] allow online resizing of block devices
@ 2011-01-19 17:02 Christoph Hellwig
  2011-01-19 17:03 ` [Qemu-devel] [PATCH 3/3] virtio-blk: tell the guest about size changes Christoph Hellwig
  0 siblings, 1 reply; 12+ messages in thread
From: Christoph Hellwig @ 2011-01-19 17:02 UTC (permalink / raw)
  To: qemu-devel

This patchset adds support for online resizing of block devices.

The first patch adds a new resize monitor command which call into
the existing image resize code.  This is the meat of the series
and probably needs quite a bit of review and help as I'm not sure
about how to implement the error handling for monitor commands
correctly.  Am I really supposed to add a new QERR_ definition
for each possible error?  And if yes how am I supposed to define
them?  The macros for them aren't exactly self-explaining.

The second patch adds a way to tell drivers about a resize, and the
third one adds a guest notification for config changes to virtio-blk
which allows the guest to pick it up without a rescan.  I've just sent
the corresponding Linux guest driver patch to Rusty.

Changes from version 1 to version 2:
 - also add a QMP command (block_resize)
 - use the o format for the size in the monitor command
 - fix typos
 - use QERR_UNDEFINED_ERROR for errors instead of unstructured strings
 - remove the CDROM hint check
 - add a reason argument to the change callback

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [Qemu-devel] [PATCH 0/3] allow online resizing of block devices
@ 2011-01-14 16:20 Christoph Hellwig
  2011-01-14 16:21 ` [Qemu-devel] [PATCH 3/3] virtio-blk: tell the guest about size changes Christoph Hellwig
  0 siblings, 1 reply; 12+ messages in thread
From: Christoph Hellwig @ 2011-01-14 16:20 UTC (permalink / raw)
  To: qemu-devel

This patchset adds support for online resizing of block devices.

The first patch adds a new resize monitor command which call into
the existing image resize code.  This is the meat of the series
and probably needs quite a bit of review and help as I'm not sure
about how to implement the error handling for monitor commands
correctly.  Am I really supposed to add a new QERR_ definition
for each possible error?  And if yes how am I supposed to define
them?  The macros for them aren't exactly self-explaining.

The second patch adds a way to tell drivers about a resize, and the
third one adds a guest notification for config changes to virtio-blk
which allows the guest to pick it up without a rescan.  I've just sent
the corresponding Linux guest driver patch to Rusty.

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2011-01-26 12:01 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-01-24 12:32 [Qemu-devel] [PATCH 0/3 v3] allow online resizing of block devices Christoph Hellwig
2011-01-24 12:32 ` [Qemu-devel] [PATCH 1/3] block: add block_resize monitor command Christoph Hellwig
2011-01-24 17:44   ` Marcelo Tosatti
2011-01-25 12:01     ` Kevin Wolf
2011-01-25 18:05       ` Christoph Hellwig
2011-01-26 11:56         ` Marcelo Tosatti
2011-01-24 12:32 ` [Qemu-devel] [PATCH 2/3] block: tell drivers about an image resize Christoph Hellwig
2011-01-24 12:32 ` [Qemu-devel] [PATCH 3/3] virtio-blk: tell the guest about size changes Christoph Hellwig
2011-01-26 10:32 ` [Qemu-devel] [PATCH 0/3 v3] allow online resizing of block devices Kevin Wolf
2011-01-26 10:49 ` Stefan Hajnoczi
  -- strict thread matches above, loose matches on Subject: below --
2011-01-19 17:02 [Qemu-devel] [PATCH 0/3 v2] " Christoph Hellwig
2011-01-19 17:03 ` [Qemu-devel] [PATCH 3/3] virtio-blk: tell the guest about size changes Christoph Hellwig
2011-01-14 16:20 [Qemu-devel] [PATCH 0/3] allow online resizing of block devices Christoph Hellwig
2011-01-14 16:21 ` [Qemu-devel] [PATCH 3/3] virtio-blk: tell the guest about size changes Christoph Hellwig

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