diff mbox series

[f2fs-dev] mkfs.f2fs: adjust zone alignment when using convention partition with zoned one

Message ID 20240910135636.471-1-yohan.joung@sk.com (mailing list archive)
State New
Headers show
Series [f2fs-dev] mkfs.f2fs: adjust zone alignment when using convention partition with zoned one | expand

Commit Message

Yohan Joung Sept. 10, 2024, 1:56 p.m. UTC 
When formatting conventional partition with zoned one, we are already
aligning the starting block address of the next device to the zone size.
Therefore, we do not align the segment0 address to the zone alignment.
This reduces the wasted zone_align_start_offset.

Signed-off-by: Yohan Joung <yohan.joung@sk.com>
---
 mkfs/f2fs_format.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index 37d23f3..71f5ec8 100644
--- a/mkfs/f2fs_format.c
+++ b/mkfs/f2fs_format.c
@@ -252,11 +252,19 @@  static int f2fs_prepare_super_block(void)
 
 	set_sb(block_count, c.total_sectors >> log_sectors_per_block);
 
-	zone_align_start_offset =
-		((uint64_t) c.start_sector * DEFAULT_SECTOR_SIZE +
-		2 * F2FS_BLKSIZE + zone_size_bytes - 1) /
-		zone_size_bytes * zone_size_bytes -
-		(uint64_t) c.start_sector * DEFAULT_SECTOR_SIZE;
+	if (c.zoned_mode && c.ndevs > 1) {
+		zone_align_start_offset =
+			((uint64_t) c.start_sector * DEFAULT_SECTOR_SIZE +
+			2 * F2FS_BLKSIZE + segment_size_bytes - 1) /
+			segment_size_bytes * segment_size_bytes -
+			(uint64_t) c.start_sector * DEFAULT_SECTOR_SIZE;
+	} else {
+		zone_align_start_offset =
+			((uint64_t) c.start_sector * DEFAULT_SECTOR_SIZE +
+			2 * F2FS_BLKSIZE + zone_size_bytes - 1) /
+			zone_size_bytes * zone_size_bytes -
+			(uint64_t) c.start_sector * DEFAULT_SECTOR_SIZE;
+	}
 
 	if (c.feature & F2FS_FEATURE_RO)
 		zone_align_start_offset = 8192;