From: Akihiko Odaki <akihiko.odaki@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <fam@euphon.net>,
pkrempa@redhat.com, Akihiko Odaki <akihiko.odaki@gmail.com>,
qemu-block@nongnu.org, Markus Armbruster <armbru@redhat.com>,
qemu-devel@nongnu.org, Max Reitz <mreitz@redhat.com>,
Konstantin Nazarov <mail@knazarov.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
John Snow <jsnow@redhat.com>,
dgilbert@redhat.com
Subject: [v4 3/3] block/io: Merge discard request alignments
Date: Sat, 3 Apr 2021 00:54:06 +0900 [thread overview]
Message-ID: <20210402155406.31033-3-akihiko.odaki@gmail.com> (raw)
In-Reply-To: <20210402155406.31033-1-akihiko.odaki@gmail.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
---
block/io.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/block/io.c b/block/io.c
index ca2dca30070..aad74bd6714 100644
--- a/block/io.c
+++ b/block/io.c
@@ -124,6 +124,8 @@ void bdrv_parent_drained_begin_single(BdrvChild *c, bool poll)
static void bdrv_merge_limits(BlockLimits *dst, const BlockLimits *src)
{
+ dst->pdiscard_alignment = MAX(dst->pdiscard_alignment,
+ src->pdiscard_alignment);
dst->opt_transfer = MAX(dst->opt_transfer, src->opt_transfer);
dst->max_transfer = MIN_NON_ZERO(dst->max_transfer, src->max_transfer);
dst->opt_mem_alignment = MAX(dst->opt_mem_alignment,
--
2.24.3 (Apple Git-128)
prev parent reply other threads:[~2021-04-02 15:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-02 15:54 [v4 1/3] block/file-posix: Optimize for macOS Akihiko Odaki
2021-04-02 15:54 ` [v4 2/3] block: Add backend_defaults property Akihiko Odaki
2021-04-02 15:54 ` Akihiko Odaki [this message]
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