[PATCH 3/6] mkfs.f2fs: export get_best_overprovision

[Jaegeuk Kim <jaegeuk@kernel.org>]

This patch exports get_best_overprovision() function.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 include/f2fs_fs.h  | 28 ++++++++++++++++++++++++++++
 mkfs/f2fs_format.c | 30 +-----------------------------
 2 files changed, 29 insertions(+), 29 deletions(-)

diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
index 6fd4c80..bbdeb51 100644
--- a/include/f2fs_fs.h
+++ b/include/f2fs_fs.h
@@ -886,4 +886,32 @@ extern struct f2fs_configuration config;
 #define ZONE_ALIGN(blks)	ALIGN(blks, config.blks_per_seg * \
 					config.segs_per_zone)
 
+static inline double get_best_overprovision(struct f2fs_super_block *sb)
+{
+	double reserved, ovp, candidate, end, diff, space;
+	double max_ovp = 0, max_space = 0;
+
+	if (get_sb(segment_count_main) < 256) {
+		candidate = 10;
+		end = 95;
+		diff = 5;
+	} else {
+		candidate = 0.01;
+		end = 10;
+		diff = 0.01;
+	}
+
+	for (; candidate <= end; candidate += diff) {
+		reserved = (2 * (100 / candidate + 1) + 6) *
+						get_sb(segs_per_sec);
+		ovp = (get_sb(segment_count_main) - reserved) * candidate / 100;
+		space = get_sb(segment_count_main) - reserved - ovp;
+		if (max_space < space) {
+			max_space = space;
+			max_ovp = candidate;
+		}
+	}
+	return max_ovp;
+}
+
 #endif	/*__F2FS_FS_H */
diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index b0c12f2..c4b17de 100644
--- a/mkfs/f2fs_format.c
+++ b/mkfs/f2fs_format.c
@@ -117,34 +117,6 @@ next:
 	free(config.extension_list);
 }
 
-static double get_best_overprovision(void)
-{
-	double reserved, ovp, candidate, end, diff, space;
-	double max_ovp = 0, max_space = 0;
-
-	if (get_sb(segment_count_main) < 256) {
-		candidate = 10;
-		end = 95;
-		diff = 5;
-	} else {
-		candidate = 0.01;
-		end = 10;
-		diff = 0.01;
-	}
-
-	for (; candidate <= end; candidate += diff) {
-		reserved = (2 * (100 / candidate + 1) + 6) *
-						get_sb(segs_per_sec);
-		ovp = (get_sb(segment_count_main) - reserved) * candidate / 100;
-		space = get_sb(segment_count_main) - reserved - ovp;
-		if (max_space < space) {
-			max_space = space;
-			max_ovp = candidate;
-		}
-	}
-	return max_ovp;
-}
-
 static int f2fs_prepare_super_block(void)
 {
 	u_int32_t blk_size_bytes;
@@ -302,7 +274,7 @@ static int f2fs_prepare_super_block(void)
 
 	/* Let's determine the best reserved and overprovisioned space */
 	if (config.overprovision == 0)
-		config.overprovision = get_best_overprovision();
+		config.overprovision = get_best_overprovision(sb);
 
 	config.reserved_segments =
 			(2 * (100 / config.overprovision + 1) + 6)
-- 
2.5.4 (Apple Git-61)


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