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From 0e5a55b3556fdd23bbeeaca40a151e7062d42c1e Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Wed, 14 Aug 2019 08:42:25 +0100
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Subject: [PATCH 02/10] 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: <20190814084229.6458-2-kwolf@redhat.com>
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Patchwork-id: 89966
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O-Subject: [RHEL-8.1.0 qemu-kvm PATCH 1/5] block-backend: Make blk_inc/dec_in_flight public
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Bugzilla: 1716349
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@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: Danilo C. L. de Paula <ddepaula@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 0d623e4..e941520 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 20f8bbb..815b6e5 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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