block/iscsi: Drop iscsi_co_get_block_status for older versions of libiscsi

Debian wheezy includes libiscsi-dev 1.4.0 which does not provide
SCSI_PROVISIONING_TYPE_DEALLOCATED. Drop iscsi_co_get_block_status
in this case to allow compilation without errors.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/block/iscsi.c b/block/iscsi.c
index 68f99d319543c9a62e9c13c00710c882baa87266..6222ea9d47d9c0015dcb76f0eb5686321476a050 100644 (file)
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -811,6 +811,8 @@ iscsi_getlength(BlockDriverState *bs)
     return len;
 }
 
+#if defined(SCSI_PROVISIONING_TYPE_DEALLOCATED)
+
 static int64_t coroutine_fn iscsi_co_get_block_status(BlockDriverState *bs,
                                                   int64_t sector_num,
                                                   int nb_sectors, int *pnum)
@@ -901,6 +903,8 @@ out:
     return ret;
 }
 
+#endif /* SCSI_PROVISIONING_TYPE_DEALLOCATED */
+
 static int
 coroutine_fn iscsi_co_discard(BlockDriverState *bs, int64_t sector_num,
                                    int nb_sectors)
@@ -1522,7 +1526,9 @@ static BlockDriver bdrv_iscsi = {
     .bdrv_getlength  = iscsi_getlength,
     .bdrv_truncate   = iscsi_truncate,
 
+#if defined(SCSI_PROVISIONING_TYPE_DEALLOCATED)
     .bdrv_co_get_block_status = iscsi_co_get_block_status,
+#endif
     .bdrv_co_discard      = iscsi_co_discard,
 
     .bdrv_aio_readv  = iscsi_aio_readv,