Properly store it in the flags of the ram block instead (and the flag
even already exists and is used).

E.g., qemu_ram_is_shared() now properly succeeds on all ram blocks that are
actually shared.

Reviewed-by: Igor Kotrasinski <i.kotrasinsk@partner.samsung.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 exec.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/exec.c b/exec.c
index 1fc1fa237e..cdf962a936 100644
--- a/exec.c
+++ b/exec.c
@@ -2211,7 +2211,7 @@ static void dirty_memory_extend(ram_addr_t old_ram_size,
     }
 }
 
-static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
+static void ram_block_add(RAMBlock *new_block, Error **errp)
 {
     RAMBlock *block;
     RAMBlock *last_block = NULL;
@@ -2234,7 +2234,8 @@ static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
             }
         } else {
             new_block->host = phys_mem_alloc(new_block->max_length,
-                                             &new_block->mr->align, shared);
+                                             &new_block->mr->align,
+                                             qemu_ram_is_shared(new_block));
             if (!new_block->host) {
                 error_setg_errno(errp, errno,
                                  "cannot set up guest memory '%s'",
@@ -2339,7 +2340,7 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
         return NULL;
     }
 
-    ram_block_add(new_block, &local_err, ram_flags & RAM_SHARED);
+    ram_block_add(new_block, &local_err);
     if (local_err) {
         g_free(new_block);
         error_propagate(errp, local_err);
@@ -2401,10 +2402,13 @@ RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size,
     if (host) {
         new_block->flags |= RAM_PREALLOC;
     }
+    if (share) {
+        new_block->flags |= RAM_SHARED;
+    }
     if (resizeable) {
         new_block->flags |= RAM_RESIZEABLE;
     }
-    ram_block_add(new_block, &local_err, share);
+    ram_block_add(new_block, &local_err);
     if (local_err) {
         g_free(new_block);
         error_propagate(errp, local_err);
-- 
2.24.1