diff options
Diffstat (limited to 'include/linux/f2fs_fs.h')
| -rw-r--r-- | include/linux/f2fs_fs.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index cea41a124a80..b6feed6547ce 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -32,9 +32,15 @@ /* 0, 1(node nid), 2(meta nid) are reserved node id */ #define F2FS_RESERVED_NODE_NUM 3 -#define F2FS_ROOT_INO(sbi) (sbi->root_ino_num) -#define F2FS_NODE_INO(sbi) (sbi->node_ino_num) -#define F2FS_META_INO(sbi) (sbi->meta_ino_num) +#define F2FS_ROOT_INO(sbi) ((sbi)->root_ino_num) +#define F2FS_NODE_INO(sbi) ((sbi)->node_ino_num) +#define F2FS_META_INO(sbi) ((sbi)->meta_ino_num) + +#define F2FS_IO_SIZE(sbi) (1 << (sbi)->write_io_size_bits) /* Blocks */ +#define F2FS_IO_SIZE_KB(sbi) (1 << ((sbi)->write_io_size_bits + 2)) /* KB */ +#define F2FS_IO_SIZE_BYTES(sbi) (1 << ((sbi)->write_io_size_bits + 12)) /* B */ +#define F2FS_IO_SIZE_BITS(sbi) ((sbi)->write_io_size_bits) /* power of 2 */ +#define F2FS_IO_SIZE_MASK(sbi) (F2FS_IO_SIZE(sbi) - 1) /* This flag is used by node and meta inodes, and by recovery */ #define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO) @@ -108,6 +114,8 @@ struct f2fs_super_block { /* * For checkpoint */ +#define CP_TRIMMED_FLAG 0x00000100 +#define CP_NAT_BITS_FLAG 0x00000080 #define CP_CRC_RECOVERY_FLAG 0x00000040 #define CP_FASTBOOT_FLAG 0x00000020 #define CP_FSCK_FLAG 0x00000010 @@ -154,7 +162,7 @@ struct f2fs_checkpoint { */ #define F2FS_ORPHANS_PER_BLOCK 1020 -#define GET_ORPHAN_BLOCKS(n) ((n + F2FS_ORPHANS_PER_BLOCK - 1) / \ +#define GET_ORPHAN_BLOCKS(n) (((n) + F2FS_ORPHANS_PER_BLOCK - 1) / \ F2FS_ORPHANS_PER_BLOCK) struct f2fs_orphan_block { @@ -272,6 +280,7 @@ struct f2fs_node { * For NAT entries */ #define NAT_ENTRY_PER_BLOCK (PAGE_SIZE / sizeof(struct f2fs_nat_entry)) +#define NAT_ENTRY_BITMAP_SIZE ((NAT_ENTRY_PER_BLOCK + 7) / 8) struct f2fs_nat_entry { __u8 version; /* latest version of cached nat entry */ @@ -294,6 +303,12 @@ struct f2fs_nat_block { #define SIT_ENTRY_PER_BLOCK (PAGE_SIZE / sizeof(struct f2fs_sit_entry)) /* + * F2FS uses 4 bytes to represent block address. As a result, supported size of + * disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments. + */ +#define F2FS_MAX_SEGMENT ((16 * 1024 * 1024) / 2) + +/* * Note that f2fs_sit_entry->vblocks has the following bit-field information. * [15:10] : allocation type such as CURSEG_XXXX_TYPE * [9:0] : valid block count @@ -441,7 +456,7 @@ typedef __le32 f2fs_hash_t; #define F2FS_SLOT_LEN 8 #define F2FS_SLOT_LEN_BITS 3 -#define GET_DENTRY_SLOTS(x) ((x + F2FS_SLOT_LEN - 1) >> F2FS_SLOT_LEN_BITS) +#define GET_DENTRY_SLOTS(x) (((x) + F2FS_SLOT_LEN - 1) >> F2FS_SLOT_LEN_BITS) /* MAX level for dir lookup */ #define MAX_DIR_HASH_DEPTH 63 |