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| author | Changman Lee <cm224.lee@samsung.com> | 2014-05-12 07:27:43 +0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-06-04 08:34:30 +0400 |
| commit | 1dbe4152168d44fa164edbdc9f1243de70b98f7a (patch) | |
| tree | 205318206e29db519ad1aad5e8042ae879c77184 /include/linux/f2fs_fs.h | |
| parent | bac4eef6537a663585f3fb3d633a629c72e3b73d (diff) | |
| download | linux-1dbe4152168d44fa164edbdc9f1243de70b98f7a.tar.xz | |
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 <cm224.lee@samsung.com>
[Jaegeuk Kim: simple code change for readability]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/linux/f2fs_fs.h')
| -rw-r--r-- | include/linux/f2fs_fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
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; /* |