1 files changed, 175 insertions, 47 deletions

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 115204fdefcc..f4e094e816c6 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -44,6 +44,8 @@
 enum {
 	FAULT_KMALLOC,
 	FAULT_PAGE_ALLOC,
+	FAULT_PAGE_GET,
+	FAULT_ALLOC_BIO,
 	FAULT_ALLOC_NID,
 	FAULT_ORPHAN,
 	FAULT_BLOCK,
@@ -91,6 +93,7 @@ extern char *fault_name[FAULT_MAX];
 #define F2FS_MOUNT_GRPQUOTA		0x00100000
 #define F2FS_MOUNT_PRJQUOTA		0x00200000
 #define F2FS_MOUNT_QUOTA		0x00400000
+#define F2FS_MOUNT_INLINE_XATTR_SIZE	0x00800000
 
 #define clear_opt(sbi, option)	((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
 #define set_opt(sbi, option)	((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
@@ -116,6 +119,8 @@ struct f2fs_mount_info {
 #define F2FS_FEATURE_EXTRA_ATTR		0x0008
 #define F2FS_FEATURE_PRJQUOTA		0x0010
 #define F2FS_FEATURE_INODE_CHKSUM	0x0020
+#define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR	0x0040
+#define F2FS_FEATURE_QUOTA_INO		0x0080
 
 #define F2FS_HAS_FEATURE(sb, mask)					\
 	((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
@@ -145,7 +150,7 @@ enum {
 #define BATCHED_TRIM_BLOCKS(sbi)	\
 		(BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
 #define MAX_DISCARD_BLOCKS(sbi)		BLKS_PER_SEC(sbi)
-#define DISCARD_ISSUE_RATE		8
+#define DEF_MAX_DISCARD_REQUEST		8	/* issue 8 discards per round */
 #define DEF_MIN_DISCARD_ISSUE_TIME	50	/* 50 ms, if exists */
 #define DEF_MAX_DISCARD_ISSUE_TIME	60000	/* 60 s, if no candidates */
 #define DEF_CP_INTERVAL			60	/* 60 secs */
@@ -156,7 +161,6 @@ struct cp_control {
 	__u64 trim_start;
 	__u64 trim_end;
 	__u64 trim_minlen;
-	__u64 trimmed;
 };
 
 /*
@@ -175,12 +179,14 @@ enum {
 	ORPHAN_INO,		/* for orphan ino list */
 	APPEND_INO,		/* for append ino list */
 	UPDATE_INO,		/* for update ino list */
+	FLUSH_INO,		/* for multiple device flushing */
 	MAX_INO_ENTRY,		/* max. list */
 };
 
 struct ino_entry {
-	struct list_head list;	/* list head */
-	nid_t ino;		/* inode number */
+	struct list_head list;		/* list head */
+	nid_t ino;			/* inode number */
+	unsigned int dirty_device;	/* dirty device bitmap */
 };
 
 /* for the list of inodes to be GCed */
@@ -204,10 +210,6 @@ struct discard_entry {
 #define plist_idx(blk_num)	((blk_num) >= MAX_PLIST_NUM ?		\
 					(MAX_PLIST_NUM - 1) : (blk_num - 1))
 
-#define P_ACTIVE	0x01
-#define P_TRIM		0x02
-#define plist_issue(tag)	(((tag) & P_ACTIVE) || ((tag) & P_TRIM))
-
 enum {
 	D_PREP,
 	D_SUBMIT,
@@ -239,12 +241,32 @@ struct discard_cmd {
 	int error;			/* bio error */
 };
 
+enum {
+	DPOLICY_BG,
+	DPOLICY_FORCE,
+	DPOLICY_FSTRIM,
+	DPOLICY_UMOUNT,
+	MAX_DPOLICY,
+};
+
+struct discard_policy {
+	int type;			/* type of discard */
+	unsigned int min_interval;	/* used for candidates exist */
+	unsigned int max_interval;	/* used for candidates not exist */
+	unsigned int max_requests;	/* # of discards issued per round */
+	unsigned int io_aware_gran;	/* minimum granularity discard not be aware of I/O */
+	bool io_aware;			/* issue discard in idle time */
+	bool sync;			/* submit discard with REQ_SYNC flag */
+	unsigned int granularity;	/* discard granularity */
+};
+
 struct discard_cmd_control {
 	struct task_struct *f2fs_issue_discard;	/* discard thread */
 	struct list_head entry_list;		/* 4KB discard entry list */
 	struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
 	unsigned char pend_list_tag[MAX_PLIST_NUM];/* tag for pending entries */
 	struct list_head wait_list;		/* store on-flushing entries */
+	struct list_head fstrim_list;		/* in-flight discard from fstrim */
 	wait_queue_head_t discard_wait_queue;	/* waiting queue for wake-up */
 	unsigned int discard_wake;		/* to wake up discard thread */
 	struct mutex cmd_lock;
@@ -377,11 +399,14 @@ struct f2fs_flush_device {
 
 /* for inline stuff */
 #define DEF_INLINE_RESERVED_SIZE	1
+#define DEF_MIN_INLINE_SIZE		1
 static inline int get_extra_isize(struct inode *inode);
-#define MAX_INLINE_DATA(inode)	(sizeof(__le32) * \
-				(CUR_ADDRS_PER_INODE(inode) - \
-				DEF_INLINE_RESERVED_SIZE - \
-				F2FS_INLINE_XATTR_ADDRS))
+static inline int get_inline_xattr_addrs(struct inode *inode);
+#define F2FS_INLINE_XATTR_ADDRS(inode)	get_inline_xattr_addrs(inode)
+#define MAX_INLINE_DATA(inode)	(sizeof(__le32) *			\
+				(CUR_ADDRS_PER_INODE(inode) -		\
+				F2FS_INLINE_XATTR_ADDRS(inode) -	\
+				DEF_INLINE_RESERVED_SIZE))
 
 /* for inline dir */
 #define NR_INLINE_DENTRY(inode)	(MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
@@ -581,6 +606,7 @@ struct f2fs_inode_info {
 #endif
 	struct list_head dirty_list;	/* dirty list for dirs and files */
 	struct list_head gdirty_list;	/* linked in global dirty list */
+	struct list_head inmem_ilist;	/* list for inmem inodes */
 	struct list_head inmem_pages;	/* inmemory pages managed by f2fs */
 	struct task_struct *inmem_task;	/* store inmemory task */
 	struct mutex inmem_lock;	/* lock for inmemory pages */
@@ -591,6 +617,7 @@ struct f2fs_inode_info {
 
 	int i_extra_isize;		/* size of extra space located in i_addr */
 	kprojid_t i_projid;		/* id for project quota */
+	int i_inline_xattr_size;	/* inline xattr size */
 };
 
 static inline void get_extent_info(struct extent_info *ext,
@@ -664,10 +691,13 @@ static inline void __try_update_largest_extent(struct inode *inode,
 	}
 }
 
-enum nid_list {
-	FREE_NID_LIST,
-	ALLOC_NID_LIST,
-	MAX_NID_LIST,
+/*
+ * For free nid management
+ */
+enum nid_state {
+	FREE_NID,		/* newly added to free nid list */
+	PREALLOC_NID,		/* it is preallocated */
+	MAX_NID_STATE,
 };
 
 struct f2fs_nm_info {
@@ -690,8 +720,8 @@ struct f2fs_nm_info {
 
 	/* free node ids management */
 	struct radix_tree_root free_nid_root;/* root of the free_nid cache */
-	struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
-	unsigned int nid_cnt[MAX_NID_LIST];	/* the number of free node id */
+	struct list_head free_nid_list;		/* list for free nids excluding preallocated nids */
+	unsigned int nid_cnt[MAX_NID_STATE];	/* the number of free node id */
 	spinlock_t nid_list_lock;	/* protect nid lists ops */
 	struct mutex build_lock;	/* lock for build free nids */
 	unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
@@ -769,6 +799,7 @@ enum {
 struct flush_cmd {
 	struct completion wait;
 	struct llist_node llnode;
+	nid_t ino;
 	int ret;
 };
 
@@ -787,6 +818,8 @@ struct f2fs_sm_info {
 	struct dirty_seglist_info *dirty_info;	/* dirty segment information */
 	struct curseg_info *curseg_array;	/* active segment information */
 
+	struct rw_semaphore curseg_lock;	/* for preventing curseg change */
+
 	block_t seg0_blkaddr;		/* block address of 0'th segment */
 	block_t main_blkaddr;		/* start block address of main area */
 	block_t ssa_blkaddr;		/* start block address of SSA area */
@@ -808,6 +841,7 @@ struct f2fs_sm_info {
 	unsigned int min_ipu_util;	/* in-place-update threshold */
 	unsigned int min_fsync_blocks;	/* threshold for fsync */
 	unsigned int min_hot_blocks;	/* threshold for hot block allocation */
+	unsigned int min_ssr_sections;	/* threshold to trigger SSR allocation */
 
 	/* for flush command control */
 	struct flush_cmd_control *fcc_info;
@@ -829,6 +863,7 @@ struct f2fs_sm_info {
 enum count_type {
 	F2FS_DIRTY_DENTS,
 	F2FS_DIRTY_DATA,
+	F2FS_DIRTY_QDATA,
 	F2FS_DIRTY_NODES,
 	F2FS_DIRTY_META,
 	F2FS_INMEM_PAGES,
@@ -877,6 +912,18 @@ enum need_lock_type {
 	LOCK_RETRY,
 };
 
+enum cp_reason_type {
+	CP_NO_NEEDED,
+	CP_NON_REGULAR,
+	CP_HARDLINK,
+	CP_SB_NEED_CP,
+	CP_WRONG_PINO,
+	CP_NO_SPC_ROLL,
+	CP_NODE_NEED_CP,
+	CP_FASTBOOT_MODE,
+	CP_SPEC_LOG_NUM,
+};
+
 enum iostat_type {
 	APP_DIRECT_IO,			/* app direct IOs */
 	APP_BUFFERED_IO,		/* app buffered IOs */
@@ -896,6 +943,7 @@ enum iostat_type {
 
 struct f2fs_io_info {
 	struct f2fs_sb_info *sbi;	/* f2fs_sb_info pointer */
+	nid_t ino;		/* inode number */
 	enum page_type type;	/* contains DATA/NODE/META/META_FLUSH */
 	enum temp_type temp;	/* contains HOT/WARM/COLD */
 	int op;			/* contains REQ_OP_ */
@@ -940,6 +988,7 @@ enum inode_type {
 	DIR_INODE,			/* for dirty dir inode */
 	FILE_INODE,			/* for dirty regular/symlink inode */
 	DIRTY_META,			/* for all dirtied inode metadata */
+	ATOMIC_FILE,			/* for all atomic files */
 	NR_INODE_TYPE,
 };
 
@@ -1042,12 +1091,15 @@ struct f2fs_sb_info {
 	loff_t max_file_blocks;			/* max block index of file */
 	int active_logs;			/* # of active logs */
 	int dir_level;				/* directory level */
+	int inline_xattr_size;			/* inline xattr size */
+	unsigned int trigger_ssr_threshold;	/* threshold to trigger ssr */
 
 	block_t user_block_count;		/* # of user blocks */
 	block_t total_valid_block_count;	/* # of valid blocks */
 	block_t discard_blks;			/* discard command candidats */
 	block_t last_valid_block_count;		/* for recovery */
 	block_t reserved_blocks;		/* configurable reserved blocks */
+	block_t current_reserved_blocks;	/* current reserved blocks */
 
 	u32 s_next_generation;			/* for NFS support */
 
@@ -1113,6 +1165,8 @@ struct f2fs_sb_info {
 	struct list_head s_list;
 	int s_ndevs;				/* number of devices */
 	struct f2fs_dev_info *devs;		/* for device list */
+	unsigned int dirty_device;		/* for checkpoint data flush */
+	spinlock_t dev_lock;			/* protect dirty_device */
 	struct mutex umount_mutex;
 	unsigned int shrinker_run_no;
 
@@ -1176,8 +1230,7 @@ static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
 
 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
 {
-	struct timespec ts = {sbi->interval_time[type], 0};
-	unsigned long interval = timespec_to_jiffies(&ts);
+	unsigned long interval = sbi->interval_time[type] * HZ;
 
 	return time_after(jiffies, sbi->last_time[type] + interval);
 }
@@ -1344,6 +1397,13 @@ static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
 	return le64_to_cpu(cp->checkpoint_ver);
 }
 
+static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
+{
+	if (type < F2FS_MAX_QUOTAS)
+		return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
+	return 0;
+}
+
 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
 {
 	size_t crc_offset = le32_to_cpu(cp->checksum_offset);
@@ -1522,7 +1582,8 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
 
 	spin_lock(&sbi->stat_lock);
 	sbi->total_valid_block_count += (block_t)(*count);
-	avail_user_block_count = sbi->user_block_count - sbi->reserved_blocks;
+	avail_user_block_count = sbi->user_block_count -
+					sbi->current_reserved_blocks;
 	if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
 		diff = sbi->total_valid_block_count - avail_user_block_count;
 		*count -= diff;
@@ -1556,6 +1617,10 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
 	f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
 	f2fs_bug_on(sbi, inode->i_blocks < sectors);
 	sbi->total_valid_block_count -= (block_t)count;
+	if (sbi->reserved_blocks &&
+		sbi->current_reserved_blocks < sbi->reserved_blocks)
+		sbi->current_reserved_blocks = min(sbi->reserved_blocks,
+					sbi->current_reserved_blocks + count);
 	spin_unlock(&sbi->stat_lock);
 	f2fs_i_blocks_write(inode, count, false, true);
 }
@@ -1576,6 +1641,8 @@ static inline void inode_inc_dirty_pages(struct inode *inode)
 	atomic_inc(&F2FS_I(inode)->dirty_pages);
 	inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
 				F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
+	if (IS_NOQUOTA(inode))
+		inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
 }
 
 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
@@ -1592,6 +1659,8 @@ static inline void inode_dec_dirty_pages(struct inode *inode)
 	atomic_dec(&F2FS_I(inode)->dirty_pages);
 	dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
 				F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
+	if (IS_NOQUOTA(inode))
+		dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
 }
 
 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
@@ -1699,10 +1768,17 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
 			return ret;
 	}
 
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	if (time_to_inject(sbi, FAULT_BLOCK)) {
+		f2fs_show_injection_info(FAULT_BLOCK);
+		goto enospc;
+	}
+#endif
+
 	spin_lock(&sbi->stat_lock);
 
 	valid_block_count = sbi->total_valid_block_count + 1;
-	if (unlikely(valid_block_count + sbi->reserved_blocks >
+	if (unlikely(valid_block_count + sbi->current_reserved_blocks >
 						sbi->user_block_count)) {
 		spin_unlock(&sbi->stat_lock);
 		goto enospc;
@@ -1745,6 +1821,9 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
 
 	sbi->total_valid_node_count--;
 	sbi->total_valid_block_count--;
+	if (sbi->reserved_blocks &&
+		sbi->current_reserved_blocks < sbi->reserved_blocks)
+		sbi->current_reserved_blocks++;
 
 	spin_unlock(&sbi->stat_lock);
 
@@ -1791,6 +1870,19 @@ static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
 	return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
 }
 
+static inline struct page *f2fs_pagecache_get_page(
+				struct address_space *mapping, pgoff_t index,
+				int fgp_flags, gfp_t gfp_mask)
+{
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
+		f2fs_show_injection_info(FAULT_PAGE_GET);
+		return NULL;
+	}
+#endif
+	return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
+}
+
 static inline void f2fs_copy_page(struct page *src, struct page *dst)
 {
 	char *src_kaddr = kmap(src);
@@ -1840,15 +1932,25 @@ static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
 	return entry;
 }
 
-static inline struct bio *f2fs_bio_alloc(int npages)
+static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
+						int npages, bool no_fail)
 {
 	struct bio *bio;
 
-	/* No failure on bio allocation */
-	bio = bio_alloc(GFP_NOIO, npages);
-	if (!bio)
-		bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
-	return bio;
+	if (no_fail) {
+		/* No failure on bio allocation */
+		bio = bio_alloc(GFP_NOIO, npages);
+		if (!bio)
+			bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
+		return bio;
+	}
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
+		f2fs_show_injection_info(FAULT_ALLOC_BIO);
+		return NULL;
+	}
+#endif
+	return bio_alloc(GFP_KERNEL, npages);
 }
 
 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
@@ -2158,25 +2260,20 @@ static inline int f2fs_has_inline_xattr(struct inode *inode)
 
 static inline unsigned int addrs_per_inode(struct inode *inode)
 {
-	if (f2fs_has_inline_xattr(inode))
-		return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS;
-	return CUR_ADDRS_PER_INODE(inode);
+	return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS(inode);
 }
 
-static inline void *inline_xattr_addr(struct page *page)
+static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
 {
 	struct f2fs_inode *ri = F2FS_INODE(page);
 
 	return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
-					F2FS_INLINE_XATTR_ADDRS]);
+					F2FS_INLINE_XATTR_ADDRS(inode)]);
 }
 
 static inline int inline_xattr_size(struct inode *inode)
 {
-	if (f2fs_has_inline_xattr(inode))
-		return F2FS_INLINE_XATTR_ADDRS << 2;
-	else
-		return 0;
+	return get_inline_xattr_addrs(inode) * sizeof(__le32);
 }
 
 static inline int f2fs_has_inline_data(struct inode *inode)
@@ -2257,9 +2354,10 @@ static inline void clear_file(struct inode *inode, int type)
 
 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
 {
+	bool ret;
+
 	if (dsync) {
 		struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-		bool ret;
 
 		spin_lock(&sbi->inode_lock[DIRTY_META]);
 		ret = list_empty(&F2FS_I(inode)->gdirty_list);
@@ -2270,7 +2368,12 @@ static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
 			file_keep_isize(inode) ||
 			i_size_read(inode) & PAGE_MASK)
 		return false;
-	return F2FS_I(inode)->last_disk_size == i_size_read(inode);
+
+	down_read(&F2FS_I(inode)->i_sem);
+	ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
+	up_read(&F2FS_I(inode)->i_sem);
+
+	return ret;
 }
 
 static inline int f2fs_readonly(struct super_block *sb)
@@ -2320,6 +2423,12 @@ static inline int get_extra_isize(struct inode *inode)
 	return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
 }
 
+static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb);
+static inline int get_inline_xattr_addrs(struct inode *inode)
+{
+	return F2FS_I(inode)->i_inline_xattr_size;
+}
+
 #define get_inode_mode(i) \
 	((is_inode_flag_set(i, FI_ACL_MODE)) ? \
 	 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
@@ -2448,7 +2557,7 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
  */
 int f2fs_inode_dirtied(struct inode *inode, bool sync);
 void f2fs_inode_synced(struct inode *inode);
-void f2fs_enable_quota_files(struct f2fs_sb_info *sbi);
+int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
 void f2fs_quota_off_umount(struct super_block *sb);
 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
 int f2fs_sync_fs(struct super_block *sb, int sync);
@@ -2476,7 +2585,7 @@ void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
-int truncate_xattr_node(struct inode *inode, struct page *page);
+int truncate_xattr_node(struct inode *inode);
 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
 int remove_inode_page(struct inode *inode);
 struct page *new_inode_page(struct inode *inode);
@@ -2511,19 +2620,22 @@ void destroy_node_manager_caches(void);
  */
 bool need_SSR(struct f2fs_sb_info *sbi);
 void register_inmem_page(struct inode *inode, struct page *page);
+void drop_inmem_pages_all(struct f2fs_sb_info *sbi);
 void drop_inmem_pages(struct inode *inode);
 void drop_inmem_page(struct inode *inode, struct page *page);
 int commit_inmem_pages(struct inode *inode);
 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
-int f2fs_issue_flush(struct f2fs_sb_info *sbi);
+int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
+int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
-void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
+void init_discard_policy(struct discard_policy *dpolicy, int discard_type,
+						unsigned int granularity);
 void stop_discard_thread(struct f2fs_sb_info *sbi);
-void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi, bool umount);
+bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
 void release_discard_addrs(struct f2fs_sb_info *sbi);
 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
@@ -2578,6 +2690,10 @@ void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
+void set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
+					unsigned int devidx, int type);
+bool is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
+					unsigned int devidx, int type);
 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
 void release_orphan_inode(struct f2fs_sb_info *sbi);
@@ -2665,14 +2781,16 @@ struct f2fs_stat_info {
 	unsigned long long hit_largest, hit_cached, hit_rbtree;
 	unsigned long long hit_total, total_ext;
 	int ext_tree, zombie_tree, ext_node;
-	int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
+	int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
+	int ndirty_data, ndirty_qdata;
 	int inmem_pages;
-	unsigned int ndirty_dirs, ndirty_files, ndirty_all;
+	unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
 	int nats, dirty_nats, sits, dirty_sits;
 	int free_nids, avail_nids, alloc_nids;
 	int total_count, utilization;
 	int bg_gc, nr_wb_cp_data, nr_wb_data;
-	int nr_flushing, nr_flushed, nr_discarding, nr_discarded;
+	int nr_flushing, nr_flushed, flush_list_empty;
+	int nr_discarding, nr_discarded;
 	int nr_discard_cmd;
 	unsigned int undiscard_blks;
 	int inline_xattr, inline_inode, inline_dir, append, update, orphans;
@@ -2981,6 +3099,16 @@ static inline int f2fs_sb_has_inode_chksum(struct super_block *sb)
 	return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_INODE_CHKSUM);
 }
 
+static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb)
+{
+	return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR);
+}
+
+static inline int f2fs_sb_has_quota_ino(struct super_block *sb)
+{
+	return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_QUOTA_INO);
+}
+
 #ifdef CONFIG_BLK_DEV_ZONED
 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
 			struct block_device *bdev, block_t blkaddr)