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From: Wei Yang <richard.weiyang@gmail.com>
To: qemu-devel@nongnu.org
Cc: Wei Yang <richardw.yang@linux.intel.com>,
	dgilbert@redhat.com, quintela@redhat.com
Subject: [Qemu-devel] [PATCH V2 1/2] migration/qemu-file: remove check on writev_buffer in qemu_put_compression_data
Date: Wed, 11 Sep 2019 13:28:38 +0000	[thread overview]
Message-ID: <20190911132839.23336-2-richard.weiyang@gmail.com> (raw)
In-Reply-To: <20190911132839.23336-1-richard.weiyang@gmail.com>

From: Wei Yang <richardw.yang@linux.intel.com>

The check of writev_buffer is in qemu_fflush, which means it is not
harmful if it is NULL.

And removing it will make the code consistent since all other
add_to_iovec() is called without the check.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 migration/qemu-file.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index e33c46764f..47f16d0e54 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -761,9 +761,7 @@ ssize_t qemu_put_compression_data(QEMUFile *f, z_stream *stream,
     }
 
     qemu_put_be32(f, blen);
-    if (f->ops->writev_buffer) {
-        add_to_iovec(f, f->buf + f->buf_index, blen, false);
-    }
+    add_to_iovec(f, f->buf + f->buf_index, blen, false);
     f->buf_index += blen;
     if (f->buf_index == IO_BUF_SIZE) {
         qemu_fflush(f);
-- 
2.15.1



  reply	other threads:[~2019-09-11 13:30 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-11 13:28 [Qemu-devel] [PATCH V2 0/2] migration/qemu-file: cleanup and refine qemu-file Wei Yang
2019-09-11 13:28 ` Wei Yang [this message]
2019-09-11 13:28 ` [Qemu-devel] [PATCH V2 2/2] migration/qemu-file: fix potential buf waste for extra buf_index adjustment Wei Yang
2019-09-11 19:01   ` Dr. David Alan Gilbert
2019-09-12 10:23 ` [Qemu-devel] [PATCH V2 0/2] migration/qemu-file: cleanup and refine qemu-file Dr. David Alan Gilbert

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