qcow/qcow2: Drop synchronous qcow_write()

There is only one (internal) user left and it can be switched to the normal
emulation provided in block.c

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 1 insertions, 36 deletions

diff --git a/block/qcow.c b/block/qcow.c
index 6ecf2e8e03..77c86e47ce 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -488,41 +488,6 @@ static int qcow_read(BlockDriverState *bs, int64_t sector_num,
 }
 #endif
 
-static int qcow_write(BlockDriverState *bs, int64_t sector_num,
-                     const uint8_t *buf, int nb_sectors)
-{
-    BDRVQcowState *s = bs->opaque;
-    int ret, index_in_cluster, n;
-    uint64_t cluster_offset;
-
-    while (nb_sectors > 0) {
-        index_in_cluster = sector_num & (s->cluster_sectors - 1);
-        n = s->cluster_sectors - index_in_cluster;
-        if (n > nb_sectors)
-            n = nb_sectors;
-        cluster_offset = get_cluster_offset(bs, sector_num << 9, 1, 0,
-                                            index_in_cluster,
-                                            index_in_cluster + n);
-        if (!cluster_offset)
-            return -1;
-        if (s->crypt_method) {
-            encrypt_sectors(s, sector_num, s->cluster_data, buf, n, 1,
-                            &s->aes_encrypt_key);
-            ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512,
-                              s->cluster_data, n * 512);
-        } else {
-            ret = bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512);
-        }
-        if (ret != n * 512)
-            return -1;
-        nb_sectors -= n;
-        sector_num += n;
-        buf += n * 512;
-    }
-    s->cluster_cache_offset = -1; /* disable compressed cache */
-    return 0;
-}
-
 typedef struct QCowAIOCB {
     BlockDriverAIOCB common;
     int64_t sector_num;
@@ -904,7 +869,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
 
     if (ret != Z_STREAM_END || out_len >= s->cluster_size) {
         /* could not compress: write normal cluster */
-        qcow_write(bs, sector_num, buf, s->cluster_sectors);
+        bdrv_write(bs, sector_num, buf, s->cluster_sectors);
     } else {
         cluster_offset = get_cluster_offset(bs, sector_num << 9, 2,
                                             out_len, 0, 0);