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From fe68ddea8e2283fad78a3596ee0682d49294987f Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Fri, 1 Mar 2019 14:27:43 +0100
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Subject: [PATCH 1/9] block-backend: Make blk_inc/dec_in_flight public
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20190301142747.12251-2-kwolf@redhat.com>
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Patchwork-id: 84764
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O-Subject: [RHEL-7.7 qemu-kvm-rhev PATCH 1/5] block-backend: Make blk_inc/dec_in_flight public
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Bugzilla: 1671173
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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For some users of BlockBackends, just increasing the in_flight counter
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is easier than implementing separate handlers in BlockDevOps. Make the
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helper functions for this public.
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit c90e2a9cfd94bd02d92c53b97f04fd595001de7e)
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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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block/block-backend.c | 4 ++--
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include/sysemu/block-backend.h | 2 ++
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2 files changed, 4 insertions(+), 2 deletions(-)
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diff --git a/block/block-backend.c b/block/block-backend.c
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index ddec869..52eebeb 100644
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--- a/block/block-backend.c
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+++ b/block/block-backend.c
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@@ -1294,12 +1294,12 @@ int blk_make_zero(BlockBackend *blk, BdrvRequestFlags flags)
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return bdrv_make_zero(blk->root, flags);
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}
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-static void blk_inc_in_flight(BlockBackend *blk)
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+void blk_inc_in_flight(BlockBackend *blk)
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{
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atomic_inc(&blk->in_flight);
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}
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-static void blk_dec_in_flight(BlockBackend *blk)
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+void blk_dec_in_flight(BlockBackend *blk)
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{
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atomic_dec(&blk->in_flight);
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aio_wait_kick();
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diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
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index 830d873..6b6d882 100644
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--- a/include/sysemu/block-backend.h
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+++ b/include/sysemu/block-backend.h
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@@ -157,6 +157,8 @@ int blk_co_pdiscard(BlockBackend *blk, int64_t offset, int bytes);
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int blk_co_flush(BlockBackend *blk);
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int blk_flush(BlockBackend *blk);
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int blk_commit_all(void);
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+void blk_inc_in_flight(BlockBackend *blk);
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+void blk_dec_in_flight(BlockBackend *blk);
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void blk_drain(BlockBackend *blk);
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void blk_drain_all(void);
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void blk_set_on_error(BlockBackend *blk, BlockdevOnError on_read_error,
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--
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1.8.3.1
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