[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

** Changed in: qemu Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1523246 Title: Virtio-blk does not support TRIM Status in QEMU: Fix Released Bug

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

The DISCARD feature has now been implemented in QEMU, too: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=37b06f8d46fe602e630e4 ** Changed in: qemu Status: Confirmed => Fix Committed -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

While the Linux virtio-blk guest driver now supports discard and write zeroes, QEMU's virtio-blk device emulation does not support it yet. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1523246

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

I believe this feature was just merged by Linus about a week ago, and is in linux 5.0-rc1: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d548e65904ae43b0637d200a2441fc94e0589c30 -- You received this bug notification because you are a member of qemu- devel-ml,

Re: [Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

Latest effort was one month ago: https://patchwork.kernel.org/patch/9645537/ 2017-04-19 14:08 GMT+02:00 Mike Mol : > discard support for virtio-blk is on the QEMU TODO list: > > http://wiki.qemu-project.org/ToDo/Block#virtio- > blk_discard_support_.5BPeter_Lieven.5D > > -- >

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

discard support for virtio-blk is on the QEMU TODO list: http://wiki.qemu-project.org/ToDo/Block#virtio- blk_discard_support_.5BPeter_Lieven.5D -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1523246

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

> Virtio will never support discard requests. Why? If you don't want to write a treatise on the subject, perhaps point at an LWN article or LKML thread where that conclusion was discussed or reached. > So, please rename bug to "Feature request: Refuse to operate if virtio + discard is requested"

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

Granted, it's been there since October of 2014. http://wiki.qemu- project.org/index.php?title=ToDo/Block=4410#virtio- blk_discard_support_.5BPeter_Lieven.5D -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU.

[Qemu-devel] [Bug 1523246] Re: Virtio-blk does not support TRIM

> Virtio will never support discard requests. - what is that? > Please use virtio-scsi. - in some tests, SCSI emulation appears 7 times slower than the paravirtualized bus. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU.