From 1dbe4152168d44fa164edbdc9f1243de70b98f7a Mon Sep 17 00:00:00 2001 From: Changman Lee Date: Mon, 12 May 2014 12:27:43 +0900 Subject: f2fs: large volume support f2fs's cp has one page which consists of struct f2fs_checkpoint and version bitmap of sit and nat. To support lots of segments, we need more blocks for sit bitmap. So let's arrange sit bitmap as following: +-----------------+------------+ | f2fs_checkpoint | sit bitmap | | + nat bitmap | | +-----------------+------------+ 0 4k N blocks Signed-off-by: Changman Lee [Jaegeuk Kim: simple code change for readability] Signed-off-by: Jaegeuk Kim --- include/linux/f2fs_fs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/f2fs_fs.h') diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index ba6f3127738f..6ff0b0b42d47 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -19,6 +19,7 @@ #define F2FS_LOG_SECTORS_PER_BLOCK 3 /* 4KB: F2FS_BLKSIZE */ #define F2FS_BLKSIZE 4096 /* support only 4KB block */ #define F2FS_MAX_EXTENSION 64 /* # of extension entries */ +#define F2FS_BLK_ALIGN(x) (((x) + F2FS_BLKSIZE - 1) / F2FS_BLKSIZE) #define NULL_ADDR ((block_t)0) /* used as block_t addresses */ #define NEW_ADDR ((block_t)-1) /* used as block_t addresses */ @@ -75,6 +76,7 @@ struct f2fs_super_block { __le16 volume_name[512]; /* volume name */ __le32 extension_count; /* # of extensions below */ __u8 extension_list[F2FS_MAX_EXTENSION][8]; /* extension array */ + __le32 cp_payload; } __packed; /* -- cgit v1.2.3