[Qemu-devel] [PATCH v4 04/10] migration: drop the return value of do_compress_ram_page

[guangrong.xiao@gmail.com]

From: Xiao Guangrong <xiaoguangrong@tencent.com>

It is not used and cleans the code up a little

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
---
 migration/ram.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/migration/ram.c b/migration/ram.c
index 49ace30614..e463de4f69 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -381,8 +381,8 @@ static QemuThread *decompress_threads;
 static QemuMutex decomp_done_lock;
 static QemuCond decomp_done_cond;
 
-static int do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
-                                ram_addr_t offset, uint8_t *source_buf);
+static void do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
+                                 ram_addr_t offset, uint8_t *source_buf);
 
 static void *do_data_compress(void *opaque)
 {
@@ -1842,15 +1842,14 @@ static int ram_save_multifd_page(RAMState *rs, RAMBlock *block,
     return 1;
 }
 
-static int do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
-                                ram_addr_t offset, uint8_t *source_buf)
+static void do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
+                                 ram_addr_t offset, uint8_t *source_buf)
 {
     RAMState *rs = ram_state;
-    int bytes_sent, blen;
     uint8_t *p = block->host + (offset & TARGET_PAGE_MASK);
+    int ret;
 
-    bytes_sent = save_page_header(rs, f, block, offset |
-                                  RAM_SAVE_FLAG_COMPRESS_PAGE);
+    save_page_header(rs, f, block, offset | RAM_SAVE_FLAG_COMPRESS_PAGE);
 
     /*
      * copy it to a internal buffer to avoid it being modified by VM
@@ -1858,17 +1857,14 @@ static int do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
      * decompression
      */
     memcpy(source_buf, p, TARGET_PAGE_SIZE);
-    blen = qemu_put_compression_data(f, stream, source_buf, TARGET_PAGE_SIZE);
-    if (blen < 0) {
-        bytes_sent = 0;
-        qemu_file_set_error(migrate_get_current()->to_dst_file, blen);
+    ret = qemu_put_compression_data(f, stream, source_buf, TARGET_PAGE_SIZE);
+    if (ret < 0) {
+        qemu_file_set_error(migrate_get_current()->to_dst_file, ret);
         error_report("compressed data failed!");
-    } else {
-        bytes_sent += blen;
-        ram_release_pages(block->idstr, offset & TARGET_PAGE_MASK, 1);
+        return;
     }
 
-    return bytes_sent;
+    ram_release_pages(block->idstr, offset & TARGET_PAGE_MASK, 1);
 }
 
 static void flush_compressed_data(RAMState *rs)
-- 
2.14.4