diff options
Diffstat (limited to 'include/linux/f2fs_fs.h')
| -rw-r--r-- | include/linux/f2fs_fs.h | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 08ed2b0a96e..87f14e90e98 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -15,8 +15,9 @@ #include <linux/types.h> #define F2FS_SUPER_OFFSET 1024 /* byte-size offset */ -#define F2FS_LOG_SECTOR_SIZE 9 /* 9 bits for 512 byte */ -#define F2FS_LOG_SECTORS_PER_BLOCK 3 /* 4KB: F2FS_BLKSIZE */ +#define F2FS_MIN_LOG_SECTOR_SIZE 9 /* 9 bits for 512 bytes */ +#define F2FS_MAX_LOG_SECTOR_SIZE 12 /* 12 bits for 4096 bytes */ +#define F2FS_LOG_SECTORS_PER_BLOCK 3 /* log number for sector/blk */ #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) @@ -32,7 +33,8 @@ #define F2FS_META_INO(sbi) (sbi->meta_ino_num) /* This flag is used by node and meta inodes, and by recovery */ -#define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO) +#define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO) +#define GFP_F2FS_HIGH_ZERO (GFP_NOFS | __GFP_ZERO | __GFP_HIGHMEM) /* * For further optimization on multi-head logs, on-disk layout supports maximum @@ -85,6 +87,7 @@ struct f2fs_super_block { /* * For checkpoint */ +#define CP_FSCK_FLAG 0x00000010 #define CP_ERROR_FLAG 0x00000008 #define CP_COMPACT_SUM_FLAG 0x00000004 #define CP_ORPHAN_PRESENT_FLAG 0x00000002 @@ -168,14 +171,12 @@ struct f2fs_extent { #define F2FS_INLINE_XATTR 0x01 /* file inline xattr flag */ #define F2FS_INLINE_DATA 0x02 /* file inline data flag */ +#define F2FS_INLINE_DENTRY 0x04 /* file inline dentry flag */ +#define F2FS_DATA_EXIST 0x08 /* file inline data exist flag */ #define MAX_INLINE_DATA (sizeof(__le32) * (DEF_ADDRS_PER_INODE - \ F2FS_INLINE_XATTR_ADDRS - 1)) -#define INLINE_DATA_OFFSET (PAGE_CACHE_SIZE - sizeof(struct node_footer) -\ - sizeof(__le32) * (DEF_ADDRS_PER_INODE + \ - DEF_NIDS_PER_INODE - 1)) - struct f2fs_inode { __le16 i_mode; /* file mode */ __u8 i_advise; /* file hints */ @@ -433,6 +434,24 @@ struct f2fs_dentry_block { __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN]; } __packed; +/* for inline dir */ +#define NR_INLINE_DENTRY (MAX_INLINE_DATA * BITS_PER_BYTE / \ + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ + BITS_PER_BYTE + 1)) +#define INLINE_DENTRY_BITMAP_SIZE ((NR_INLINE_DENTRY + \ + BITS_PER_BYTE - 1) / BITS_PER_BYTE) +#define INLINE_RESERVED_SIZE (MAX_INLINE_DATA - \ + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ + NR_INLINE_DENTRY + INLINE_DENTRY_BITMAP_SIZE)) + +/* inline directory entry structure */ +struct f2fs_inline_dentry { + __u8 dentry_bitmap[INLINE_DENTRY_BITMAP_SIZE]; + __u8 reserved[INLINE_RESERVED_SIZE]; + struct f2fs_dir_entry dentry[NR_INLINE_DENTRY]; + __u8 filename[NR_INLINE_DENTRY][F2FS_SLOT_LEN]; +} __packed; + /* file types used in inode_info->flags */ enum { F2FS_FT_UNKNOWN, |