fs: import f2fs from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git (branch dev)

Up-to-date with
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git @04a17fb17fafada39f96bfb41ceb2dc1c11b2af6
(f2fs: avoid to read inline data except first page)

Change-Id: I1fc76a61defd530c4e97587980ba43e98db6119e
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>

3 files changed, 1222 insertions, 0 deletions

diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
new file mode 100644
index 0000000..da74d87
--- /dev/null
+++ b/include/linux/f2fs_fs.h
@@ -0,0 +1,431 @@
+/**
+ * include/linux/f2fs_fs.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _LINUX_F2FS_FS_H
+#define _LINUX_F2FS_FS_H
+
+#include <linux/pagemap.h>
+#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_BLKSIZE			4096	/* support only 4KB block */
+#define F2FS_MAX_EXTENSION		64	/* # of extension entries */
+
+#define NULL_ADDR		((block_t)0)	/* used as block_t addresses */
+#define NEW_ADDR		((block_t)-1)	/* used as block_t addresses */
+
+#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)
+
+/* This flag is used by node and meta inodes, and by recovery */
+#define GFP_F2FS_ZERO	(GFP_NOFS | __GFP_ZERO)
+
+/*
+ * For further optimization on multi-head logs, on-disk layout supports maximum
+ * 16 logs by default. The number, 16, is expected to cover all the cases
+ * enoughly. The implementaion currently uses no more than 6 logs.
+ * Half the logs are used for nodes, and the other half are used for data.
+ */
+#define MAX_ACTIVE_LOGS	16
+#define MAX_ACTIVE_NODE_LOGS	8
+#define MAX_ACTIVE_DATA_LOGS	8
+
+/*
+ * For superblock
+ */
+struct f2fs_super_block {
+	__le32 magic;			/* Magic Number */
+	__le16 major_ver;		/* Major Version */
+	__le16 minor_ver;		/* Minor Version */
+	__le32 log_sectorsize;		/* log2 sector size in bytes */
+	__le32 log_sectors_per_block;	/* log2 # of sectors per block */
+	__le32 log_blocksize;		/* log2 block size in bytes */
+	__le32 log_blocks_per_seg;	/* log2 # of blocks per segment */
+	__le32 segs_per_sec;		/* # of segments per section */
+	__le32 secs_per_zone;		/* # of sections per zone */
+	__le32 checksum_offset;		/* checksum offset inside super block */
+	__le64 block_count;		/* total # of user blocks */
+	__le32 section_count;		/* total # of sections */
+	__le32 segment_count;		/* total # of segments */
+	__le32 segment_count_ckpt;	/* # of segments for checkpoint */
+	__le32 segment_count_sit;	/* # of segments for SIT */
+	__le32 segment_count_nat;	/* # of segments for NAT */
+	__le32 segment_count_ssa;	/* # of segments for SSA */
+	__le32 segment_count_main;	/* # of segments for main area */
+	__le32 segment0_blkaddr;	/* start block address of segment 0 */
+	__le32 cp_blkaddr;		/* start block address of checkpoint */
+	__le32 sit_blkaddr;		/* start block address of SIT */
+	__le32 nat_blkaddr;		/* start block address of NAT */
+	__le32 ssa_blkaddr;		/* start block address of SSA */
+	__le32 main_blkaddr;		/* start block address of main area */
+	__le32 root_ino;		/* root inode number */
+	__le32 node_ino;		/* node inode number */
+	__le32 meta_ino;		/* meta inode number */
+	__u8 uuid[16];			/* 128-bit uuid for volume */
+	__le16 volume_name[512];	/* volume name */
+	__le32 extension_count;		/* # of extensions below */
+	__u8 extension_list[F2FS_MAX_EXTENSION][8];	/* extension array */
+} __packed;
+
+/*
+ * For checkpoint
+ */
+#define CP_ERROR_FLAG		0x00000008
+#define CP_COMPACT_SUM_FLAG	0x00000004
+#define CP_ORPHAN_PRESENT_FLAG	0x00000002
+#define CP_UMOUNT_FLAG		0x00000001
+
+struct f2fs_checkpoint {
+	__le64 checkpoint_ver;		/* checkpoint block version number */
+	__le64 user_block_count;	/* # of user blocks */
+	__le64 valid_block_count;	/* # of valid blocks in main area */
+	__le32 rsvd_segment_count;	/* # of reserved segments for gc */
+	__le32 overprov_segment_count;	/* # of overprovision segments */
+	__le32 free_segment_count;	/* # of free segments in main area */
+
+	/* information of current node segments */
+	__le32 cur_node_segno[MAX_ACTIVE_NODE_LOGS];
+	__le16 cur_node_blkoff[MAX_ACTIVE_NODE_LOGS];
+	/* information of current data segments */
+	__le32 cur_data_segno[MAX_ACTIVE_DATA_LOGS];
+	__le16 cur_data_blkoff[MAX_ACTIVE_DATA_LOGS];
+	__le32 ckpt_flags;		/* Flags : umount and journal_present */
+	__le32 cp_pack_total_block_count;	/* total # of one cp pack */
+	__le32 cp_pack_start_sum;	/* start block number of data summary */
+	__le32 valid_node_count;	/* Total number of valid nodes */
+	__le32 valid_inode_count;	/* Total number of valid inodes */
+	__le32 next_free_nid;		/* Next free node number */
+	__le32 sit_ver_bitmap_bytesize;	/* Default value 64 */
+	__le32 nat_ver_bitmap_bytesize; /* Default value 256 */
+	__le32 checksum_offset;		/* checksum offset inside cp block */
+	__le64 elapsed_time;		/* mounted time */
+	/* allocation type of current segment */
+	unsigned char alloc_type[MAX_ACTIVE_LOGS];
+
+	/* SIT and NAT version bitmap */
+	unsigned char sit_nat_version_bitmap[1];
+} __packed;
+
+/*
+ * For orphan inode management
+ */
+#define F2FS_ORPHANS_PER_BLOCK	1020
+
+struct f2fs_orphan_block {
+	__le32 ino[F2FS_ORPHANS_PER_BLOCK];	/* inode numbers */
+	__le32 reserved;	/* reserved */
+	__le16 blk_addr;	/* block index in current CP */
+	__le16 blk_count;	/* Number of orphan inode blocks in CP */
+	__le32 entry_count;	/* Total number of orphan nodes in current CP */
+	__le32 check_sum;	/* CRC32 for orphan inode block */
+} __packed;
+
+/*
+ * For NODE structure
+ */
+struct f2fs_extent {
+	__le32 fofs;		/* start file offset of the extent */
+	__le32 blk_addr;	/* start block address of the extent */
+	__le32 len;		/* lengh of the extent */
+} __packed;
+
+#define F2FS_NAME_LEN		255
+#define F2FS_INLINE_XATTR_ADDRS	50	/* 200 bytes for inline xattrs */
+#define DEF_ADDRS_PER_INODE	923	/* Address Pointers in an Inode */
+#define ADDRS_PER_INODE(fi)	addrs_per_inode(fi)
+#define ADDRS_PER_BLOCK		1018	/* Address Pointers in a Direct Block */
+#define NIDS_PER_BLOCK		1018	/* Node IDs in an Indirect Block */
+
+#define	NODE_DIR1_BLOCK		(DEF_ADDRS_PER_INODE + 1)
+#define	NODE_DIR2_BLOCK		(DEF_ADDRS_PER_INODE + 2)
+#define	NODE_IND1_BLOCK		(DEF_ADDRS_PER_INODE + 3)
+#define	NODE_IND2_BLOCK		(DEF_ADDRS_PER_INODE + 4)
+#define	NODE_DIND_BLOCK		(DEF_ADDRS_PER_INODE + 5)
+
+#define F2FS_INLINE_XATTR	0x01	/* file inline xattr flag */
+#define F2FS_INLINE_DATA	0x02	/* file inline data 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 + 5 - 1))
+
+struct f2fs_inode {
+	__le16 i_mode;			/* file mode */
+	__u8 i_advise;			/* file hints */
+	__u8 i_inline;			/* file inline flags */
+	__le32 i_uid;			/* user ID */
+	__le32 i_gid;			/* group ID */
+	__le32 i_links;			/* links count */
+	__le64 i_size;			/* file size in bytes */
+	__le64 i_blocks;		/* file size in blocks */
+	__le64 i_atime;			/* access time */
+	__le64 i_ctime;			/* change time */
+	__le64 i_mtime;			/* modification time */
+	__le32 i_atime_nsec;		/* access time in nano scale */
+	__le32 i_ctime_nsec;		/* change time in nano scale */
+	__le32 i_mtime_nsec;		/* modification time in nano scale */
+	__le32 i_generation;		/* file version (for NFS) */
+	__le32 i_current_depth;		/* only for directory depth */
+	__le32 i_xattr_nid;		/* nid to save xattr */
+	__le32 i_flags;			/* file attributes */
+	__le32 i_pino;			/* parent inode number */
+	__le32 i_namelen;		/* file name length */
+	__u8 i_name[F2FS_NAME_LEN];	/* file name for SPOR */
+	__u8 i_reserved2;		/* for backward compatibility */
+
+	struct f2fs_extent i_ext;	/* caching a largest extent */
+
+	__le32 i_addr[DEF_ADDRS_PER_INODE];	/* Pointers to data blocks */
+
+	__le32 i_nid[5];		/* direct(2), indirect(2),
+						double_indirect(1) node id */
+} __packed;
+
+struct direct_node {
+	__le32 addr[ADDRS_PER_BLOCK];	/* array of data block address */
+} __packed;
+
+struct indirect_node {
+	__le32 nid[NIDS_PER_BLOCK];	/* array of data block address */
+} __packed;
+
+enum {
+	COLD_BIT_SHIFT = 0,
+	FSYNC_BIT_SHIFT,
+	DENT_BIT_SHIFT,
+	OFFSET_BIT_SHIFT
+};
+
+struct node_footer {
+	__le32 nid;		/* node id */
+	__le32 ino;		/* inode nunmber */
+	__le32 flag;		/* include cold/fsync/dentry marks and offset */
+	__le64 cp_ver;		/* checkpoint version */
+	__le32 next_blkaddr;	/* next node page block address */
+} __packed;
+
+struct f2fs_node {
+	/* can be one of three types: inode, direct, and indirect types */
+	union {
+		struct f2fs_inode i;
+		struct direct_node dn;
+		struct indirect_node in;
+	};
+	struct node_footer footer;
+} __packed;
+
+/*
+ * For NAT entries
+ */
+#define NAT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_nat_entry))
+
+struct f2fs_nat_entry {
+	__u8 version;		/* latest version of cached nat entry */
+	__le32 ino;		/* inode number */
+	__le32 block_addr;	/* block address */
+} __packed;
+
+struct f2fs_nat_block {
+	struct f2fs_nat_entry entries[NAT_ENTRY_PER_BLOCK];
+} __packed;
+
+/*
+ * For SIT entries
+ *
+ * Each segment is 2MB in size by default so that a bitmap for validity of
+ * there-in blocks should occupy 64 bytes, 512 bits.
+ * Not allow to change this.
+ */
+#define SIT_VBLOCK_MAP_SIZE 64
+#define SIT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_sit_entry))
+
+/*
+ * 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
+ */
+#define SIT_VBLOCKS_SHIFT	10
+#define SIT_VBLOCKS_MASK	((1 << SIT_VBLOCKS_SHIFT) - 1)
+#define GET_SIT_VBLOCKS(raw_sit)				\
+	(le16_to_cpu((raw_sit)->vblocks) & SIT_VBLOCKS_MASK)
+#define GET_SIT_TYPE(raw_sit)					\
+	((le16_to_cpu((raw_sit)->vblocks) & ~SIT_VBLOCKS_MASK)	\
+	 >> SIT_VBLOCKS_SHIFT)
+
+struct f2fs_sit_entry {
+	__le16 vblocks;				/* reference above */
+	__u8 valid_map[SIT_VBLOCK_MAP_SIZE];	/* bitmap for valid blocks */
+	__le64 mtime;				/* segment age for cleaning */
+} __packed;
+
+struct f2fs_sit_block {
+	struct f2fs_sit_entry entries[SIT_ENTRY_PER_BLOCK];
+} __packed;
+
+/*
+ * For segment summary
+ *
+ * One summary block contains exactly 512 summary entries, which represents
+ * exactly 2MB segment by default. Not allow to change the basic units.
+ *
+ * NOTE: For initializing fields, you must use set_summary
+ *
+ * - If data page, nid represents dnode's nid
+ * - If node page, nid represents the node page's nid.
+ *
+ * The ofs_in_node is used by only data page. It represents offset
+ * from node's page's beginning to get a data block address.
+ * ex) data_blkaddr = (block_t)(nodepage_start_address + ofs_in_node)
+ */
+#define ENTRIES_IN_SUM		512
+#define	SUMMARY_SIZE		(7)	/* sizeof(struct summary) */
+#define	SUM_FOOTER_SIZE		(5)	/* sizeof(struct summary_footer) */
+#define SUM_ENTRY_SIZE		(SUMMARY_SIZE * ENTRIES_IN_SUM)
+
+/* a summary entry for a 4KB-sized block in a segment */
+struct f2fs_summary {
+	__le32 nid;		/* parent node id */
+	union {
+		__u8 reserved[3];
+		struct {
+			__u8 version;		/* node version number */
+			__le16 ofs_in_node;	/* block index in parent node */
+		} __packed;
+	};
+} __packed;
+
+/* summary block type, node or data, is stored to the summary_footer */
+#define SUM_TYPE_NODE		(1)
+#define SUM_TYPE_DATA		(0)
+
+struct summary_footer {
+	unsigned char entry_type;	/* SUM_TYPE_XXX */
+	__u32 check_sum;		/* summary checksum */
+} __packed;
+
+#define SUM_JOURNAL_SIZE	(F2FS_BLKSIZE - SUM_FOOTER_SIZE -\
+				SUM_ENTRY_SIZE)
+#define NAT_JOURNAL_ENTRIES	((SUM_JOURNAL_SIZE - 2) /\
+				sizeof(struct nat_journal_entry))
+#define NAT_JOURNAL_RESERVED	((SUM_JOURNAL_SIZE - 2) %\
+				sizeof(struct nat_journal_entry))
+#define SIT_JOURNAL_ENTRIES	((SUM_JOURNAL_SIZE - 2) /\
+				sizeof(struct sit_journal_entry))
+#define SIT_JOURNAL_RESERVED	((SUM_JOURNAL_SIZE - 2) %\
+				sizeof(struct sit_journal_entry))
+/*
+ * frequently updated NAT/SIT entries can be stored in the spare area in
+ * summary blocks
+ */
+enum {
+	NAT_JOURNAL = 0,
+	SIT_JOURNAL
+};
+
+struct nat_journal_entry {
+	__le32 nid;
+	struct f2fs_nat_entry ne;
+} __packed;
+
+struct nat_journal {
+	struct nat_journal_entry entries[NAT_JOURNAL_ENTRIES];
+	__u8 reserved[NAT_JOURNAL_RESERVED];
+} __packed;
+
+struct sit_journal_entry {
+	__le32 segno;
+	struct f2fs_sit_entry se;
+} __packed;
+
+struct sit_journal {
+	struct sit_journal_entry entries[SIT_JOURNAL_ENTRIES];
+	__u8 reserved[SIT_JOURNAL_RESERVED];
+} __packed;
+
+/* 4KB-sized summary block structure */
+struct f2fs_summary_block {
+	struct f2fs_summary entries[ENTRIES_IN_SUM];
+	union {
+		__le16 n_nats;
+		__le16 n_sits;
+	};
+	/* spare area is used by NAT or SIT journals */
+	union {
+		struct nat_journal nat_j;
+		struct sit_journal sit_j;
+	};
+	struct summary_footer footer;
+} __packed;
+
+/*
+ * For directory operations
+ */
+#define F2FS_DOT_HASH		0
+#define F2FS_DDOT_HASH		F2FS_DOT_HASH
+#define F2FS_MAX_HASH		(~((0x3ULL) << 62))
+#define F2FS_HASH_COL_BIT	((0x1ULL) << 63)
+
+typedef __le32	f2fs_hash_t;
+
+/* One directory entry slot covers 8bytes-long file name */
+#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)
+
+/* the number of dentry in a block */
+#define NR_DENTRY_IN_BLOCK	214
+
+/* MAX level for dir lookup */
+#define MAX_DIR_HASH_DEPTH	63
+
+#define SIZE_OF_DIR_ENTRY	11	/* by byte */
+#define SIZE_OF_DENTRY_BITMAP	((NR_DENTRY_IN_BLOCK + BITS_PER_BYTE - 1) / \
+					BITS_PER_BYTE)
+#define SIZE_OF_RESERVED	(PAGE_SIZE - ((SIZE_OF_DIR_ENTRY + \
+				F2FS_SLOT_LEN) * \
+				NR_DENTRY_IN_BLOCK + SIZE_OF_DENTRY_BITMAP))
+
+/* One directory entry slot representing F2FS_SLOT_LEN-sized file name */
+struct f2fs_dir_entry {
+	__le32 hash_code;	/* hash code of file name */
+	__le32 ino;		/* inode number */
+	__le16 name_len;	/* lengh of file name */
+	__u8 file_type;		/* file type */
+} __packed;
+
+/* 4KB-sized directory entry block */
+struct f2fs_dentry_block {
+	/* validity bitmap for directory entries in each block */
+	__u8 dentry_bitmap[SIZE_OF_DENTRY_BITMAP];
+	__u8 reserved[SIZE_OF_RESERVED];
+	struct f2fs_dir_entry dentry[NR_DENTRY_IN_BLOCK];
+	__u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN];
+} __packed;
+
+/* file types used in inode_info->flags */
+enum {
+	F2FS_FT_UNKNOWN,
+	F2FS_FT_REG_FILE,
+	F2FS_FT_DIR,
+	F2FS_FT_CHRDEV,
+	F2FS_FT_BLKDEV,
+	F2FS_FT_FIFO,
+	F2FS_FT_SOCK,
+	F2FS_FT_SYMLINK,
+	F2FS_FT_MAX
+};
+
+#endif  /* _LINUX_F2FS_FS_H */
diff --git a/include/linux/magic.h b/include/linux/magic.h
index 1e5df2a..2616b54 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -24,6 +24,7 @@
 #define EXT4_SUPER_MAGIC	0xEF53
 #define BTRFS_SUPER_MAGIC	0x9123683E
 #define NILFS_SUPER_MAGIC	0x3434
+#define F2FS_SUPER_MAGIC	0xF2F52010
 #define HPFS_SUPER_MAGIC	0xf995e849
 #define ISOFS_SUPER_MAGIC	0x9660
 #define JFFS2_SUPER_MAGIC	0x72b6
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
new file mode 100644
index 0000000..3b9f28d
--- /dev/null
+++ b/include/trace/events/f2fs.h
@@ -0,0 +1,790 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM f2fs
+
+#if !defined(_TRACE_F2FS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_F2FS_H
+
+#include <linux/tracepoint.h>
+
+#define show_dev(entry)		MAJOR(entry->dev), MINOR(entry->dev)
+#define show_dev_ino(entry)	show_dev(entry), (unsigned long)entry->ino
+
+#define show_block_type(type)						\
+	__print_symbolic(type,						\
+		{ NODE,		"NODE" },				\
+		{ DATA,		"DATA" },				\
+		{ META,		"META" },				\
+		{ META_FLUSH,	"META_FLUSH" })
+
+#define F2FS_BIO_MASK(t)	(t & (READA | WRITE_FLUSH_FUA))
+#define F2FS_BIO_EXTRA_MASK(t)	(t & (REQ_META | REQ_PRIO))
+
+#define show_bio_type(type)	show_bio_base(type), show_bio_extra(type)
+
+#define show_bio_base(type)						\
+	__print_symbolic(F2FS_BIO_MASK(type),				\
+		{ READ, 		"READ" },			\
+		{ READA, 		"READAHEAD" },			\
+		{ READ_SYNC, 		"READ_SYNC" },			\
+		{ WRITE, 		"WRITE" },			\
+		{ WRITE_SYNC, 		"WRITE_SYNC" },			\
+		{ WRITE_FLUSH,		"WRITE_FLUSH" },		\
+		{ WRITE_FUA, 		"WRITE_FUA" },			\
+		{ WRITE_FLUSH_FUA,	"WRITE_FLUSH_FUA" })
+
+#define show_bio_extra(type)						\
+	__print_symbolic(F2FS_BIO_EXTRA_MASK(type),			\
+		{ REQ_META, 		"(M)" },			\
+		{ REQ_PRIO, 		"(P)" },			\
+		{ REQ_META | REQ_PRIO,	"(MP)" },			\
+		{ 0, " \b" })
+
+#define show_data_type(type)						\
+	__print_symbolic(type,						\
+		{ CURSEG_HOT_DATA, 	"Hot DATA" },			\
+		{ CURSEG_WARM_DATA, 	"Warm DATA" },			\
+		{ CURSEG_COLD_DATA, 	"Cold DATA" },			\
+		{ CURSEG_HOT_NODE, 	"Hot NODE" },			\
+		{ CURSEG_WARM_NODE, 	"Warm NODE" },			\
+		{ CURSEG_COLD_NODE, 	"Cold NODE" },			\
+		{ NO_CHECK_TYPE, 	"No TYPE" })
+
+#define show_file_type(type)						\
+	__print_symbolic(type,						\
+		{ 0,		"FILE" },				\
+		{ 1,		"DIR" })
+
+#define show_gc_type(type)						\
+	__print_symbolic(type,						\
+		{ FG_GC,	"Foreground GC" },			\
+		{ BG_GC,	"Background GC" })
+
+#define show_alloc_mode(type)						\
+	__print_symbolic(type,						\
+		{ LFS,	"LFS-mode" },					\
+		{ SSR,	"SSR-mode" })
+
+#define show_victim_policy(type)					\
+	__print_symbolic(type,						\
+		{ GC_GREEDY,	"Greedy" },				\
+		{ GC_CB,	"Cost-Benefit" })
+
+struct victim_sel_policy;
+
+DECLARE_EVENT_CLASS(f2fs__inode,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(ino_t,	pino)
+		__field(umode_t, mode)
+		__field(loff_t,	size)
+		__field(unsigned int, nlink)
+		__field(blkcnt_t, blocks)
+		__field(__u8,	advise)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->pino	= F2FS_I(inode)->i_pino;
+		__entry->mode	= inode->i_mode;
+		__entry->nlink	= inode->i_nlink;
+		__entry->size	= inode->i_size;
+		__entry->blocks	= inode->i_blocks;
+		__entry->advise	= F2FS_I(inode)->i_advise;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, pino = %lu, i_mode = 0x%hx, "
+		"i_size = %lld, i_nlink = %u, i_blocks = %llu, i_advise = 0x%x",
+		show_dev_ino(__entry),
+		(unsigned long)__entry->pino,
+		__entry->mode,
+		__entry->size,
+		(unsigned int)__entry->nlink,
+		(unsigned long long)__entry->blocks,
+		(unsigned char)__entry->advise)
+);
+
+DECLARE_EVENT_CLASS(f2fs__inode_exit,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(int,	ret)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->ret	= ret;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, ret = %d",
+		show_dev_ino(__entry),
+		__entry->ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_sync_file_enter,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+TRACE_EVENT(f2fs_sync_file_exit,
+
+	TP_PROTO(struct inode *inode, bool need_cp, int datasync, int ret),
+
+	TP_ARGS(inode, need_cp, datasync, ret),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(bool,	need_cp)
+		__field(int,	datasync)
+		__field(int,	ret)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= inode->i_sb->s_dev;
+		__entry->ino		= inode->i_ino;
+		__entry->need_cp	= need_cp;
+		__entry->datasync	= datasync;
+		__entry->ret		= ret;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, checkpoint is %s, "
+		"datasync = %d, ret = %d",
+		show_dev_ino(__entry),
+		__entry->need_cp ? "needed" : "not needed",
+		__entry->datasync,
+		__entry->ret)
+);
+
+TRACE_EVENT(f2fs_sync_fs,
+
+	TP_PROTO(struct super_block *sb, int wait),
+
+	TP_ARGS(sb, wait),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(int,	dirty)
+		__field(int,	wait)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= sb->s_dev;
+		__entry->dirty	= F2FS_SB(sb)->s_dirty;
+		__entry->wait	= wait;
+	),
+
+	TP_printk("dev = (%d,%d), superblock is %s, wait = %d",
+		show_dev(__entry),
+		__entry->dirty ? "dirty" : "not dirty",
+		__entry->wait)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_iget,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_iget_exit,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_evict_inode,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_new_inode,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret)
+);
+
+TRACE_EVENT(f2fs_unlink_enter,
+
+	TP_PROTO(struct inode *dir, struct dentry *dentry),
+
+	TP_ARGS(dir, dentry),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(loff_t,	size)
+		__field(blkcnt_t, blocks)
+		__field(const char *,	name)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= dir->i_sb->s_dev;
+		__entry->ino	= dir->i_ino;
+		__entry->size	= dir->i_size;
+		__entry->blocks	= dir->i_blocks;
+		__entry->name	= dentry->d_name.name;
+	),
+
+	TP_printk("dev = (%d,%d), dir ino = %lu, i_size = %lld, "
+		"i_blocks = %llu, name = %s",
+		show_dev_ino(__entry),
+		__entry->size,
+		(unsigned long long)__entry->blocks,
+		__entry->name)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_unlink_exit,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_truncate,
+
+	TP_PROTO(struct inode *inode),
+
+	TP_ARGS(inode)
+);
+
+TRACE_EVENT(f2fs_truncate_data_blocks_range,
+
+	TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs, int free),
+
+	TP_ARGS(inode, nid,  ofs, free),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(nid_t,	nid)
+		__field(unsigned int,	ofs)
+		__field(int,	free)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->nid	= nid;
+		__entry->ofs	= ofs;
+		__entry->free	= free;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, nid = %u, offset = %u, freed = %d",
+		show_dev_ino(__entry),
+		(unsigned int)__entry->nid,
+		__entry->ofs,
+		__entry->free)
+);
+
+DECLARE_EVENT_CLASS(f2fs__truncate_op,
+
+	TP_PROTO(struct inode *inode, u64 from),
+
+	TP_ARGS(inode, from),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(loff_t,	size)
+		__field(blkcnt_t, blocks)
+		__field(u64,	from)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->size	= inode->i_size;
+		__entry->blocks	= inode->i_blocks;
+		__entry->from	= from;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, i_size = %lld, i_blocks = %llu, "
+		"start file offset = %llu",
+		show_dev_ino(__entry),
+		__entry->size,
+		(unsigned long long)__entry->blocks,
+		(unsigned long long)__entry->from)
+);
+
+DEFINE_EVENT(f2fs__truncate_op, f2fs_truncate_blocks_enter,
+
+	TP_PROTO(struct inode *inode, u64 from),
+
+	TP_ARGS(inode, from)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_truncate_blocks_exit,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__truncate_op, f2fs_truncate_inode_blocks_enter,
+
+	TP_PROTO(struct inode *inode, u64 from),
+
+	TP_ARGS(inode, from)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_truncate_inode_blocks_exit,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret)
+);
+
+DECLARE_EVENT_CLASS(f2fs__truncate_node,
+
+	TP_PROTO(struct inode *inode, nid_t nid, block_t blk_addr),
+
+	TP_ARGS(inode, nid, blk_addr),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(nid_t,	nid)
+		__field(block_t,	blk_addr)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= inode->i_sb->s_dev;
+		__entry->ino		= inode->i_ino;
+		__entry->nid		= nid;
+		__entry->blk_addr	= blk_addr;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, nid = %u, block_address = 0x%llx",
+		show_dev_ino(__entry),
+		(unsigned int)__entry->nid,
+		(unsigned long long)__entry->blk_addr)
+);
+
+DEFINE_EVENT(f2fs__truncate_node, f2fs_truncate_nodes_enter,
+
+	TP_PROTO(struct inode *inode, nid_t nid, block_t blk_addr),
+
+	TP_ARGS(inode, nid, blk_addr)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_truncate_nodes_exit,
+
+	TP_PROTO(struct inode *inode, int ret),
+
+	TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__truncate_node, f2fs_truncate_node,
+
+	TP_PROTO(struct inode *inode, nid_t nid, block_t blk_addr),
+
+	TP_ARGS(inode, nid, blk_addr)
+);
+
+TRACE_EVENT(f2fs_truncate_partial_nodes,
+
+	TP_PROTO(struct inode *inode, nid_t nid[], int depth, int err),
+
+	TP_ARGS(inode, nid, depth, err),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(nid_t,	nid[3])
+		__field(int,	depth)
+		__field(int,	err)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->nid[0]	= nid[0];
+		__entry->nid[1]	= nid[1];
+		__entry->nid[2]	= nid[2];
+		__entry->depth	= depth;
+		__entry->err	= err;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, "
+		"nid[0] = %u, nid[1] = %u, nid[2] = %u, depth = %d, err = %d",
+		show_dev_ino(__entry),
+		(unsigned int)__entry->nid[0],
+		(unsigned int)__entry->nid[1],
+		(unsigned int)__entry->nid[2],
+		__entry->depth,
+		__entry->err)
+);
+
+TRACE_EVENT_CONDITION(f2fs_submit_page_bio,
+
+	TP_PROTO(struct page *page, sector_t blkaddr, int type),
+
+	TP_ARGS(page, blkaddr, type),
+
+	TP_CONDITION(page->mapping),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(pgoff_t,	index)
+		__field(sector_t,	blkaddr)
+		__field(int,	type)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= page->mapping->host->i_sb->s_dev;
+		__entry->ino		= page->mapping->host->i_ino;
+		__entry->index		= page->index;
+		__entry->blkaddr	= blkaddr;
+		__entry->type		= type;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, page_index = 0x%lx, "
+		"blkaddr = 0x%llx, bio_type = %s%s",
+		show_dev_ino(__entry),
+		(unsigned long)__entry->index,
+		(unsigned long long)__entry->blkaddr,
+		show_bio_type(__entry->type))
+);
+
+TRACE_EVENT(f2fs_get_data_block,
+	TP_PROTO(struct inode *inode, sector_t iblock,
+				struct buffer_head *bh, int ret),
+
+	TP_ARGS(inode, iblock, bh, ret),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(sector_t,	iblock)
+		__field(sector_t,	bh_start)
+		__field(size_t,	bh_size)
+		__field(int,	ret)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= inode->i_sb->s_dev;
+		__entry->ino		= inode->i_ino;
+		__entry->iblock		= iblock;
+		__entry->bh_start	= bh->b_blocknr;
+		__entry->bh_size	= bh->b_size;
+		__entry->ret		= ret;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, file offset = %llu, "
+		"start blkaddr = 0x%llx, len = 0x%llx bytes, err = %d",
+		show_dev_ino(__entry),
+		(unsigned long long)__entry->iblock,
+		(unsigned long long)__entry->bh_start,
+		(unsigned long long)__entry->bh_size,
+		__entry->ret)
+);
+
+TRACE_EVENT(f2fs_get_victim,
+
+	TP_PROTO(struct super_block *sb, int type, int gc_type,
+			struct victim_sel_policy *p, unsigned int pre_victim,
+			unsigned int prefree, unsigned int free),
+
+	TP_ARGS(sb, type, gc_type, p, pre_victim, prefree, free),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(int,	type)
+		__field(int,	gc_type)
+		__field(int,	alloc_mode)
+		__field(int,	gc_mode)
+		__field(unsigned int,	victim)
+		__field(unsigned int,	ofs_unit)
+		__field(unsigned int,	pre_victim)
+		__field(unsigned int,	prefree)
+		__field(unsigned int,	free)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= sb->s_dev;
+		__entry->type		= type;
+		__entry->gc_type	= gc_type;
+		__entry->alloc_mode	= p->alloc_mode;
+		__entry->gc_mode	= p->gc_mode;
+		__entry->victim		= p->min_segno;
+		__entry->ofs_unit	= p->ofs_unit;
+		__entry->pre_victim	= pre_victim;
+		__entry->prefree	= prefree;
+		__entry->free		= free;
+	),
+
+	TP_printk("dev = (%d,%d), type = %s, policy = (%s, %s, %s), victim = %u "
+		"ofs_unit = %u, pre_victim_secno = %d, prefree = %u, free = %u",
+		show_dev(__entry),
+		show_data_type(__entry->type),
+		show_gc_type(__entry->gc_type),
+		show_alloc_mode(__entry->alloc_mode),
+		show_victim_policy(__entry->gc_mode),
+		__entry->victim,
+		__entry->ofs_unit,
+		(int)__entry->pre_victim,
+		__entry->prefree,
+		__entry->free)
+);
+
+TRACE_EVENT(f2fs_fallocate,
+
+	TP_PROTO(struct inode *inode, int mode,
+				loff_t offset, loff_t len, int ret),
+
+	TP_ARGS(inode, mode, offset, len, ret),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(int,	mode)
+		__field(loff_t,	offset)
+		__field(loff_t,	len)
+		__field(loff_t, size)
+		__field(blkcnt_t, blocks)
+		__field(int,	ret)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->ino	= inode->i_ino;
+		__entry->mode	= mode;
+		__entry->offset	= offset;
+		__entry->len	= len;
+		__entry->size	= inode->i_size;
+		__entry->blocks = inode->i_blocks;
+		__entry->ret	= ret;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, mode = %x, offset = %lld, "
+		"len = %lld,  i_size = %lld, i_blocks = %llu, ret = %d",
+		show_dev_ino(__entry),
+		__entry->mode,
+		(unsigned long long)__entry->offset,
+		(unsigned long long)__entry->len,
+		(unsigned long long)__entry->size,
+		(unsigned long long)__entry->blocks,
+		__entry->ret)
+);
+
+TRACE_EVENT(f2fs_reserve_new_block,
+
+	TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node),
+
+	TP_ARGS(inode, nid, ofs_in_node),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(nid_t, nid)
+		__field(unsigned int, ofs_in_node)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= inode->i_sb->s_dev;
+		__entry->nid	= nid;
+		__entry->ofs_in_node = ofs_in_node;
+	),
+
+	TP_printk("dev = (%d,%d), nid = %u, ofs_in_node = %u",
+		show_dev(__entry),
+		(unsigned int)__entry->nid,
+		__entry->ofs_in_node)
+);
+
+DECLARE_EVENT_CLASS(f2fs__submit_bio,
+
+	TP_PROTO(struct super_block *sb, int rw, int type, struct bio *bio),
+
+	TP_ARGS(sb, rw, type, bio),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(int,	rw)
+		__field(int,	type)
+		__field(sector_t,	sector)
+		__field(unsigned int,	size)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= sb->s_dev;
+		__entry->rw		= rw;
+		__entry->type		= type;
+		__entry->sector		= bio->bi_sector;
+		__entry->size		= bio->bi_size;
+	),
+
+	TP_printk("dev = (%d,%d), %s%s, %s, sector = %lld, size = %u",
+		show_dev(__entry),
+		show_bio_type(__entry->rw),
+		show_block_type(__entry->type),
+		(unsigned long long)__entry->sector,
+		__entry->size)
+);
+
+DEFINE_EVENT_CONDITION(f2fs__submit_bio, f2fs_submit_write_bio,
+
+	TP_PROTO(struct super_block *sb, int rw, int type, struct bio *bio),
+
+	TP_ARGS(sb, rw, type, bio),
+
+	TP_CONDITION(bio)
+);
+
+DEFINE_EVENT_CONDITION(f2fs__submit_bio, f2fs_submit_read_bio,
+
+	TP_PROTO(struct super_block *sb, int rw, int type, struct bio *bio),
+
+	TP_ARGS(sb, rw, type, bio),
+
+	TP_CONDITION(bio)
+);
+
+DECLARE_EVENT_CLASS(f2fs__page,
+
+	TP_PROTO(struct page *page, int type),
+
+	TP_ARGS(page, type),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(int, type)
+		__field(int, dir)
+		__field(pgoff_t, index)
+		__field(int, dirty)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= page->mapping->host->i_sb->s_dev;
+		__entry->ino	= page->mapping->host->i_ino;
+		__entry->type	= type;
+		__entry->dir	= S_ISDIR(page->mapping->host->i_mode);
+		__entry->index	= page->index;
+		__entry->dirty	= PageDirty(page);
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, dirty = %d",
+		show_dev_ino(__entry),
+		show_block_type(__entry->type),
+		show_file_type(__entry->dir),
+		(unsigned long)__entry->index,
+		__entry->dirty)
+);
+
+DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
+
+	TP_PROTO(struct page *page, int type),
+
+	TP_ARGS(page, type)
+);
+
+DEFINE_EVENT(f2fs__page, f2fs_vm_page_mkwrite,
+
+	TP_PROTO(struct page *page, int type),
+
+	TP_ARGS(page, type)
+);
+
+TRACE_EVENT(f2fs_submit_page_mbio,
+
+	TP_PROTO(struct page *page, int rw, int type, block_t blk_addr),
+
+	TP_ARGS(page, rw, type, blk_addr),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(int, rw)
+		__field(int, type)
+		__field(pgoff_t, index)
+		__field(block_t, block)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= page->mapping->host->i_sb->s_dev;
+		__entry->ino	= page->mapping->host->i_ino;
+		__entry->rw	= rw;
+		__entry->type	= type;
+		__entry->index	= page->index;
+		__entry->block	= blk_addr;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, %s%s, %s, index = %lu, blkaddr = 0x%llx",
+		show_dev_ino(__entry),
+		show_bio_type(__entry->rw),
+		show_block_type(__entry->type),
+		(unsigned long)__entry->index,
+		(unsigned long long)__entry->block)
+);
+
+TRACE_EVENT(f2fs_write_checkpoint,
+
+	TP_PROTO(struct super_block *sb, bool is_umount, char *msg),
+
+	TP_ARGS(sb, is_umount, msg),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(bool,	is_umount)
+		__field(char *,	msg)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= sb->s_dev;
+		__entry->is_umount	= is_umount;
+		__entry->msg		= msg;
+	),
+
+	TP_printk("dev = (%d,%d), checkpoint for %s, state = %s",
+		show_dev(__entry),
+		__entry->is_umount ? "clean umount" : "consistency",
+		__entry->msg)
+);
+
+TRACE_EVENT(f2fs_issue_discard,
+
+	TP_PROTO(struct super_block *sb, block_t blkstart, block_t blklen),
+
+	TP_ARGS(sb, blkstart, blklen),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(block_t, blkstart)
+		__field(block_t, blklen)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= sb->s_dev;
+		__entry->blkstart = blkstart;
+		__entry->blklen = blklen;
+	),
+
+	TP_printk("dev = (%d,%d), blkstart = 0x%llx, blklen = 0x%llx",
+		show_dev(__entry),
+		(unsigned long long)__entry->blkstart,
+		(unsigned long long)__entry->blklen)
+);
+#endif /* _TRACE_F2FS_H */
+
+ /* This part must be outside protection */
+#include <trace/define_trace.h>