btrfs-progs: convert: move acl helper to common source file

There were 2 copies of ext2_acl_count and acl_ea_size.

Signed-off-by: David Sterba <dsterba@suse.com>

Author: kdave

convert/source-ext2.c

@@ -424,27 +424,6 @@ static int ext2_xattr_check_entry(struct ext2_ext_attr_entry *entry,
 	return 0;
 }
 
-static inline int ext2_acl_count(size_t size)
-{
-	ssize_t s;
-	size -= sizeof(ext2_acl_header);
-	s = size - 4 * sizeof(ext2_acl_entry_short);
-	if (s < 0) {
-		if (size % sizeof(ext2_acl_entry_short))
-			return -1;
-		return size / sizeof(ext2_acl_entry_short);
-	} else {
-		if (s % sizeof(ext2_acl_entry))
-			return -1;
-		return s / sizeof(ext2_acl_entry) + 4;
-	}
-}
-
-static inline size_t acl_ea_size(int count)
-{
-	return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
-}
-
 static int ext2_acl_to_xattr(void *dst, const void *src,
 			     size_t dst_size, size_t src_size)
 {

convert/source-fs.c

@@ -28,6 +28,23 @@ const struct simple_range btrfs_reserved_ranges[3] = {
 	{ BTRFS_SB_MIRROR_OFFSET(2), SZ_64K }
 };
 
+int ext2_acl_count(size_t size)
+{
+	ssize_t s;
+
+	size -= sizeof(ext2_acl_header);
+	s = size - 4 * sizeof(ext2_acl_entry_short);
+	if (s < 0) {
+		if (size % sizeof(ext2_acl_entry_short))
+			return -1;
+		return size / sizeof(ext2_acl_entry_short);
+	} else {
+		if (s % sizeof(ext2_acl_entry))
+			return -1;
+		return s / sizeof(ext2_acl_entry) + 4;
+	}
+}
+
 static u64 intersect_with_reserved(u64 bytenr, u64 num_bytes)
 {
 	int i;

convert/source-fs.h

@@ -102,6 +102,8 @@ static inline size_t acl_ea_size(int count)
 	return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
 }
 
+int ext2_acl_count(size_t size);
+
 struct btrfs_convert_operations {
 	const char name[SOURCE_FS_NAME_LEN];
 	int (*open_fs)(struct btrfs_convert_context *cctx, const char *devname);

convert/source-reiserfs.h

@@ -29,22 +29,6 @@
 
 #define REISERFS_ACL_VERSION	0x0001
 
-static inline int ext2_acl_count(size_t size)
-{
-	ssize_t s;
-	size -= sizeof(ext2_acl_header);
-	s = size - 4 * sizeof(ext2_acl_entry_short);
-	if (s < 0) {
-		if (size % sizeof(ext2_acl_entry_short))
-			return -1;
-		return size / sizeof(ext2_acl_entry_short);
-	} else {
-		if (s % sizeof(ext2_acl_entry))
-			return -1;
-		return s / sizeof(ext2_acl_entry) + 4;
-	}
-}
-
 static inline dev_t new_decode_dev(u32 dev)
 {
 	unsigned major = (dev & 0xfff00) >> 8;