btrfs: move BTRFS_MAX_MIRRORS into scrub.c

This is only used locally in scrub.c, move it out of ctree.h into
scrub.c.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 6a37df0..ea83c17 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -55,17 +55,6 @@ struct btrfs_balance_control;
 struct btrfs_delayed_root;
 struct reloc_control;
 
-/*
- * Maximum number of mirrors that can be available for all profiles counting
- * the target device of dev-replace as one. During an active device replace
- * procedure, the target device of the copy operation is a mirror for the
- * filesystem data as well that can be used to read data in order to repair
- * read errors on other disks.
- *
- * Current value is derived from RAID1C4 with 4 copies.
- */
-#define BTRFS_MAX_MIRRORS (4 + 1)
-
 #define BTRFS_OLDEST_GENERATION        0ULL
 
 #define BTRFS_EMPTY_DIR_SIZE 0

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 196c4c6..cdda4b2 100644 (file)
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -56,6 +56,17 @@ struct scrub_ctx;
 
 #define SCRUB_MAX_PAGES                        (DIV_ROUND_UP(BTRFS_MAX_METADATA_BLOCKSIZE, PAGE_SIZE))
 
+/*
+ * Maximum number of mirrors that can be available for all profiles counting
+ * the target device of dev-replace as one. During an active device replace
+ * procedure, the target device of the copy operation is a mirror for the
+ * filesystem data as well that can be used to read data in order to repair
+ * read errors on other disks.
+ *
+ * Current value is derived from RAID1C4 with 4 copies.
+ */
+#define BTRFS_MAX_MIRRORS (4 + 1)
+
 struct scrub_recover {
        refcount_t              refs;
        struct btrfs_io_context *bioc;