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From b9d7b6bbaa64404eb9b4a65d0af841bfae5c9089 Mon Sep 17 00:00:00 2001
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From: Fam Zheng <famz@redhat.com>
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Date: Mon, 11 Jul 2016 05:33:36 +0200
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Subject: [PATCH 3/7] block-backend: expose bs->bl.max_transfer_length
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <1468215219-30793-4-git-send-email-famz@redhat.com>
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Patchwork-id: 71107
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O-Subject: [RHEL-7.3 qemu-kvm PATCH 3/6] block-backend: expose bs->bl.max_transfer_length
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Bugzilla: 1318199
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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From: Peter Lieven <pl@kamp.de>
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Signed-off-by: Peter Lieven <pl@kamp.de>
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Reviewed-by: Max Reitz <mreitz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 454057b7d9b9ad141bd5df8c4075745e56b4870f)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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Conflicts:
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block/block-backend.c
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include/sysemu/block-backend.h
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Downstream doesn't have BlockBackend yet, so "blk_" -> "bdrv_" and put
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the function in block.c.
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Signed-off-by: Fam Zheng <famz@redhat.com>
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---
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block.c | 5 +++++
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include/block/block.h | 1 +
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2 files changed, 6 insertions(+)
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diff --git a/block.c b/block.c
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index ae756aa..bdcd741 100644
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--- a/block.c
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+++ b/block.c
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@@ -3656,6 +3656,11 @@ int bdrv_get_flags(BlockDriverState *bs)
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return bs->open_flags;
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}
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+int bdrv_get_max_transfer_length(BlockDriverState *bs)
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+{
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+ return bs->bl.max_transfer_length;
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+}
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+
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int bdrv_flush_all(void)
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{
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BlockDriverState *bs;
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diff --git a/include/block/block.h b/include/block/block.h
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index 75147b2..d29733a 100644
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--- a/include/block/block.h
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+++ b/include/block/block.h
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@@ -379,6 +379,7 @@ void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
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void *opaque);
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const char *bdrv_get_device_name(BlockDriverState *bs);
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int bdrv_get_flags(BlockDriverState *bs);
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+int bdrv_get_max_transfer_length(BlockDriverState *bs);
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int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
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const uint8_t *buf, int nb_sectors);
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int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
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--
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1.8.3.1
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