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From 82c4f0c7c192af2c7db4b7d4ca6ab3454e4b25f5 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Tue, 26 Jun 2018 09:47:58 +0200
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Subject: [PATCH 090/268] blockjob: Improve BlockJobInfo.offset/len
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documentation
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20180626094856.6924-16-kwolf@redhat.com>
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Patchwork-id: 81087
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O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH v2 15/73] blockjob: Improve BlockJobInfo.offset/len documentation
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Bugzilla: 1513543
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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Clarify that len is just an estimation of the end value of offset, and
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that offset increases monotonically while len can change arbitrarily.
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While touching the documentation of offset, move it directly after len
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to match the order of the declaration below.
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Reviewed-by: John Snow <jsnow@redhat.com>
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(cherry picked from commit a81e0a825e3b89039a427bca037112f461b95fec)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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qapi/block-core.json | 9 ++++++---
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1 file changed, 6 insertions(+), 3 deletions(-)
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diff --git a/qapi/block-core.json b/qapi/block-core.json
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index 31bf64a..2b4566f 100644
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--- a/qapi/block-core.json
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+++ b/qapi/block-core.json
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@@ -1148,7 +1148,12 @@
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# @device: The job identifier. Originally the device name but other
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# values are allowed since QEMU 2.7
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#
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-# @len: the maximum progress value
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+# @len: Estimated @offset value at the completion of the job. This value can
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+# arbitrarily change while the job is running, in both directions.
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+#
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+# @offset: Progress made until now. The unit is arbitrary and the value can
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+# only meaningfully be used for the ratio of @offset to @len. The
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+# value is monotonically increasing.
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#
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# @busy: false if the job is known to be in a quiescent state, with
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# no pending I/O. Since 1.3.
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@@ -1156,8 +1161,6 @@
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# @paused: whether the job is paused or, if @busy is true, will
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# pause itself as soon as possible. Since 1.3.
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#
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-# @offset: the current progress value
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-#
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# @speed: the rate limit, bytes per second
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#
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# @io-status: the status of the job (since 1.3)
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--
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1.8.3.1
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