From: Stefan Hajnoczi <stefanha@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-block@nongnu.org, mreitz@redhat.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 0/6] file-posix: Make truncate/preallocate asynchronous
Date: Wed, 27 Jun 2018 12:58:01 +0100 [thread overview]
Message-ID: <20180627115801.GL5955@stefanha-x1.localdomain> (raw)
In-Reply-To: <20180626142434.22090-1-kwolf@redhat.com>
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On Tue, Jun 26, 2018 at 04:24:28PM +0200, Kevin Wolf wrote:
> This fixes the problem that blockdev-create on a local file blocks the
> main loop despite being a background job. This was caused by file-posix
> preallocating the image with blocking syscalls rather than moving this
> to the thread pool and yielding the coroutine meanwhile.
>
> v2:
> - Add locking to qcow2_co_discard()
> - Extra qcow2 fix and cleanup related to the locking code
> - Use tracked requests infrastructure for serialising I/O requests
> against truncate in newly allocated areas
Looks good!
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next prev parent reply other threads:[~2018-06-27 11:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-26 14:24 [Qemu-devel] [PATCH v2 0/6] file-posix: Make truncate/preallocate asynchronous Kevin Wolf
2018-06-26 14:24 ` [Qemu-devel] [PATCH v2 1/6] qcow2: Fix qcow2_truncate() error return value Kevin Wolf
2018-06-27 11:51 ` Stefan Hajnoczi
2018-06-26 14:24 ` [Qemu-devel] [PATCH v2 2/6] block: Convert .bdrv_truncate callback to coroutine_fn Kevin Wolf
2018-06-27 11:54 ` Stefan Hajnoczi
2018-06-26 14:24 ` [Qemu-devel] [PATCH v2 3/6] qcow2: Remove coroutine trampoline for preallocate_co() Kevin Wolf
2018-06-27 11:55 ` Stefan Hajnoczi
2018-06-26 14:24 ` [Qemu-devel] [PATCH v2 4/6] block: Move bdrv_truncate() implementation to io.c Kevin Wolf
2018-06-27 11:56 ` Stefan Hajnoczi
2018-06-26 14:24 ` [Qemu-devel] [PATCH v2 5/6] block: Use tracked request for truncate Kevin Wolf
2018-06-27 11:57 ` Stefan Hajnoczi
2018-06-26 14:24 ` [Qemu-devel] [PATCH v2 6/6] file-posix: Make .bdrv_co_truncate asynchronous Kevin Wolf
2018-06-27 11:57 ` Stefan Hajnoczi
2018-06-27 11:58 ` Stefan Hajnoczi [this message]
2018-06-27 12:42 ` [Qemu-devel] [PATCH v2 0/6] file-posix: Make truncate/preallocate asynchronous Kevin Wolf
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