Save memory by avoiding padding after sha1_hash fields

[wimlib] / include / wimlib / blob_table.h

diff --git a/include/wimlib/blob_table.h b/include/wimlib/blob_table.h
index 9dfca8dcc7171bfc8a81447a3375b8b2c66c3a73..ee1cd0faa8f4cb5c544c02d1efb507a56ec21647 100644 (file)
--- a/include/wimlib/blob_table.h
+++ b/include/wimlib/blob_table.h
@@ -108,7 +108,7 @@ struct blob_descriptor {
                        struct wim_inode *back_inode;
                        u32 back_stream_id;
                };
-       };
+       } _packed_attribute; /* union is SHA1_HASH_SIZE bytes */
 
        /* Number of times this blob is referenced by file streams in WIM
         * images.  See blob_decrement_refcnt() for information about the
@@ -353,7 +353,7 @@ extern int
 cmp_blobs_by_sequential_order(const void *p1, const void *p2);
 
 static inline const struct blob_extraction_target *
-blob_extraction_targets(struct blob_descriptor *blob)
+blob_extraction_targets(const struct blob_descriptor *blob)
 {
        if (blob->out_refcnt <= ARRAY_LEN(blob->inline_blob_extraction_targets))
                return blob->inline_blob_extraction_targets;