f2fs: clean up symbol namespace

As Ted reported:

"Hi, I was looking at f2fs's sources recently, and I noticed that there
is a very large number of non-static symbols which don't have a f2fs
prefix.  There's well over a hundred (see attached below).

As one example, in fs/f2fs/dir.c there is:

unsigned char get_de_type(struct f2fs_dir_entry *de)

This function is clearly only useful for f2fs, but it has a generic
name.  This means that if any other file system tries to have the same
symbol name, there will be a symbol conflict and the kernel would not
successfully build.  It also means that when someone is looking f2fs
sources, it's not at all obvious whether a function such as
read_data_page(), invalidate_blocks(), is a generic kernel function
found in the fs, mm, or block layers, or a f2fs specific function.

You might want to fix this at some point.  Hopefully Kent's bcachefs
isn't similarly using genericly named functions, since that might
cause conflicts with f2fs's functions --- but just as this would be a
problem that we would rightly insist that Kent fix, this is something
that we should have rightly insisted that f2fs should have fixed
before it was integrated into the mainline kernel.

acquire_orphan_inode
add_ino_entry
add_orphan_inode
allocate_data_block
allocate_new_segments
alloc_nid
alloc_nid_done
alloc_nid_failed
available_free_memory
...."

This patch adds "f2fs_" prefix for all non-static symbols in order to:
a) avoid conflict with other kernel generic symbols;
b) to indicate the function is f2fs specific one instead of generic
one;

Reported-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 71 insertions, 67 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 694ef319f979..b7b8ae92abbe 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -157,17 +157,18 @@ static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
 		cp_reason = CP_SB_NEED_CP;
 	else if (file_wrong_pino(inode))
 		cp_reason = CP_WRONG_PINO;
-	else if (!space_for_roll_forward(sbi))
+	else if (!f2fs_space_for_roll_forward(sbi))
 		cp_reason = CP_NO_SPC_ROLL;
-	else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
+	else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
 		cp_reason = CP_NODE_NEED_CP;
 	else if (test_opt(sbi, FASTBOOT))
 		cp_reason = CP_FASTBOOT_MODE;
 	else if (F2FS_OPTION(sbi).active_logs == 2)
 		cp_reason = CP_SPEC_LOG_NUM;
 	else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
-		need_dentry_mark(sbi, inode->i_ino) &&
-		exist_written_data(sbi, F2FS_I(inode)->i_pino, TRANS_DIR_INO))
+		f2fs_need_dentry_mark(sbi, inode->i_ino) &&
+		f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
+							TRANS_DIR_INO))
 		cp_reason = CP_RECOVER_DIR;
 
 	return cp_reason;
@@ -178,7 +179,7 @@ static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
 	struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
 	bool ret = false;
 	/* But we need to avoid that there are some inode updates */
-	if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino))
+	if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
 		ret = true;
 	f2fs_put_page(i, 0);
 	return ret;
@@ -238,14 +239,14 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
 	 * if there is no written data, don't waste time to write recovery info.
 	 */
 	if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
-			!exist_written_data(sbi, ino, APPEND_INO)) {
+			!f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
 
 		/* it may call write_inode just prior to fsync */
 		if (need_inode_page_update(sbi, ino))
 			goto go_write;
 
 		if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
-				exist_written_data(sbi, ino, UPDATE_INO))
+				f2fs_exist_written_data(sbi, ino, UPDATE_INO))
 			goto flush_out;
 		goto out;
 	}
@@ -272,7 +273,7 @@ go_write:
 		goto out;
 	}
 sync_nodes:
-	ret = fsync_node_pages(sbi, inode, &wbc, atomic);
+	ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic);
 	if (ret)
 		goto out;
 
@@ -282,7 +283,7 @@ sync_nodes:
 		goto out;
 	}
 
-	if (need_inode_block_update(sbi, ino)) {
+	if (f2fs_need_inode_block_update(sbi, ino)) {
 		f2fs_mark_inode_dirty_sync(inode, true);
 		f2fs_write_inode(inode, NULL);
 		goto sync_nodes;
@@ -297,21 +298,21 @@ sync_nodes:
 	 * given fsync mark.
 	 */
 	if (!atomic) {
-		ret = wait_on_node_pages_writeback(sbi, ino);
+		ret = f2fs_wait_on_node_pages_writeback(sbi, ino);
 		if (ret)
 			goto out;
 	}
 
 	/* once recovery info is written, don't need to tack this */
-	remove_ino_entry(sbi, ino, APPEND_INO);
+	f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
 	clear_inode_flag(inode, FI_APPEND_WRITE);
 flush_out:
 	if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
 		ret = f2fs_issue_flush(sbi, inode->i_ino);
 	if (!ret) {
-		remove_ino_entry(sbi, ino, UPDATE_INO);
+		f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
 		clear_inode_flag(inode, FI_UPDATE_WRITE);
-		remove_ino_entry(sbi, ino, FLUSH_INO);
+		f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
 	}
 	f2fs_update_time(sbi, REQ_TIME);
 out:
@@ -392,13 +393,13 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 
 	for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
 		set_new_dnode(&dn, inode, NULL, NULL, 0);
-		err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
+		err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
 		if (err && err != -ENOENT) {
 			goto fail;
 		} else if (err == -ENOENT) {
 			/* direct node does not exists */
 			if (whence == SEEK_DATA) {
-				pgofs = get_next_page_offset(&dn, pgofs);
+				pgofs = f2fs_get_next_page_offset(&dn, pgofs);
 				continue;
 			} else {
 				goto found;
@@ -486,7 +487,7 @@ static int f2fs_file_open(struct inode *inode, struct file *filp)
 	return dquot_file_open(inode, filp);
 }
 
-void truncate_data_blocks_range(struct dnode_of_data *dn, int count)
+void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
 	struct f2fs_node *raw_node;
@@ -506,8 +507,8 @@ void truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 			continue;
 
 		dn->data_blkaddr = NULL_ADDR;
-		set_data_blkaddr(dn);
-		invalidate_blocks(sbi, blkaddr);
+		f2fs_set_data_blkaddr(dn);
+		f2fs_invalidate_blocks(sbi, blkaddr);
 		if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
 			clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
 		nr_free++;
@@ -519,7 +520,7 @@ void truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 		 * once we invalidate valid blkaddr in range [ofs, ofs + count],
 		 * we will invalidate all blkaddr in the whole range.
 		 */
-		fofs = start_bidx_of_node(ofs_of_node(dn->node_page),
+		fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
 							dn->inode) + ofs;
 		f2fs_update_extent_cache_range(dn, fofs, 0, len);
 		dec_valid_block_count(sbi, dn->inode, nr_free);
@@ -531,9 +532,9 @@ void truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 					 dn->ofs_in_node, nr_free);
 }
 
-void truncate_data_blocks(struct dnode_of_data *dn)
+void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
 {
-	truncate_data_blocks_range(dn, ADDRS_PER_BLOCK);
+	f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK);
 }
 
 static int truncate_partial_data_page(struct inode *inode, u64 from,
@@ -555,7 +556,7 @@ static int truncate_partial_data_page(struct inode *inode, u64 from,
 		return 0;
 	}
 
-	page = get_lock_data_page(inode, index, true);
+	page = f2fs_get_lock_data_page(inode, index, true);
 	if (IS_ERR(page))
 		return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
 truncate_out:
@@ -570,7 +571,7 @@ truncate_out:
 	return 0;
 }
 
-int truncate_blocks(struct inode *inode, u64 from, bool lock)
+int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	struct dnode_of_data dn;
@@ -589,21 +590,21 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock)
 	if (lock)
 		f2fs_lock_op(sbi);
 
-	ipage = get_node_page(sbi, inode->i_ino);
+	ipage = f2fs_get_node_page(sbi, inode->i_ino);
 	if (IS_ERR(ipage)) {
 		err = PTR_ERR(ipage);
 		goto out;
 	}
 
 	if (f2fs_has_inline_data(inode)) {
-		truncate_inline_inode(inode, ipage, from);
+		f2fs_truncate_inline_inode(inode, ipage, from);
 		f2fs_put_page(ipage, 1);
 		truncate_page = true;
 		goto out;
 	}
 
 	set_new_dnode(&dn, inode, ipage, NULL, 0);
-	err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
+	err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
 	if (err) {
 		if (err == -ENOENT)
 			goto free_next;
@@ -616,13 +617,13 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock)
 	f2fs_bug_on(sbi, count < 0);
 
 	if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
-		truncate_data_blocks_range(&dn, count);
+		f2fs_truncate_data_blocks_range(&dn, count);
 		free_from += count;
 	}
 
 	f2fs_put_dnode(&dn);
 free_next:
-	err = truncate_inode_blocks(inode, free_from);
+	err = f2fs_truncate_inode_blocks(inode, free_from);
 out:
 	if (lock)
 		f2fs_unlock_op(sbi);
@@ -661,7 +662,7 @@ int f2fs_truncate(struct inode *inode)
 			return err;
 	}
 
-	err = truncate_blocks(inode, i_size_read(inode), true);
+	err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
 	if (err)
 		return err;
 
@@ -811,7 +812,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 	__setattr_copy(inode, attr);
 
 	if (attr->ia_valid & ATTR_MODE) {
-		err = posix_acl_chmod(inode, get_inode_mode(inode));
+		err = posix_acl_chmod(inode, f2fs_get_inode_mode(inode));
 		if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
 			inode->i_mode = F2FS_I(inode)->i_acl_mode;
 			clear_inode_flag(inode, FI_ACL_MODE);
@@ -850,7 +851,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
 	f2fs_balance_fs(sbi, true);
 
 	f2fs_lock_op(sbi);
-	page = get_new_data_page(inode, NULL, index, false);
+	page = f2fs_get_new_data_page(inode, NULL, index, false);
 	f2fs_unlock_op(sbi);
 
 	if (IS_ERR(page))
@@ -863,7 +864,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
 	return 0;
 }
 
-int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
+int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
 {
 	int err;
 
@@ -872,10 +873,11 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
 		pgoff_t end_offset, count;
 
 		set_new_dnode(&dn, inode, NULL, NULL, 0);
-		err = get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
+		err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
 		if (err) {
 			if (err == -ENOENT) {
-				pg_start = get_next_page_offset(&dn, pg_start);
+				pg_start = f2fs_get_next_page_offset(&dn,
+								pg_start);
 				continue;
 			}
 			return err;
@@ -886,7 +888,7 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
 
 		f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
 
-		truncate_data_blocks_range(&dn, count);
+		f2fs_truncate_data_blocks_range(&dn, count);
 		f2fs_put_dnode(&dn);
 
 		pg_start += count;
@@ -942,7 +944,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 					blk_end - 1);
 
 			f2fs_lock_op(sbi);
-			ret = truncate_hole(inode, pg_start, pg_end);
+			ret = f2fs_truncate_hole(inode, pg_start, pg_end);
 			f2fs_unlock_op(sbi);
 			up_write(&F2FS_I(inode)->i_mmap_sem);
 		}
@@ -960,7 +962,7 @@ static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
 
 next_dnode:
 	set_new_dnode(&dn, inode, NULL, NULL, 0);
-	ret = get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
+	ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
 	if (ret && ret != -ENOENT) {
 		return ret;
 	} else if (ret == -ENOENT) {
@@ -977,7 +979,7 @@ next_dnode:
 	for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
 		*blkaddr = datablock_addr(dn.inode,
 					dn.node_page, dn.ofs_in_node);
-		if (!is_checkpointed_data(sbi, *blkaddr)) {
+		if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
 
 			if (test_opt(sbi, LFS)) {
 				f2fs_put_dnode(&dn);
@@ -1010,10 +1012,10 @@ static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
 			continue;
 
 		set_new_dnode(&dn, inode, NULL, NULL, 0);
-		ret = get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
+		ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
 		if (ret) {
 			dec_valid_block_count(sbi, inode, 1);
-			invalidate_blocks(sbi, *blkaddr);
+			f2fs_invalidate_blocks(sbi, *blkaddr);
 		} else {
 			f2fs_update_data_blkaddr(&dn, *blkaddr);
 		}
@@ -1043,18 +1045,18 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
 			pgoff_t ilen;
 
 			set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
-			ret = get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
+			ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
 			if (ret)
 				return ret;
 
-			get_node_info(sbi, dn.nid, &ni);
+			f2fs_get_node_info(sbi, dn.nid, &ni);
 			ilen = min((pgoff_t)
 				ADDRS_PER_PAGE(dn.node_page, dst_inode) -
 						dn.ofs_in_node, len - i);
 			do {
 				dn.data_blkaddr = datablock_addr(dn.inode,
 						dn.node_page, dn.ofs_in_node);
-				truncate_data_blocks_range(&dn, 1);
+				f2fs_truncate_data_blocks_range(&dn, 1);
 
 				if (do_replace[i]) {
 					f2fs_i_blocks_write(src_inode,
@@ -1077,10 +1079,11 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
 		} else {
 			struct page *psrc, *pdst;
 
-			psrc = get_lock_data_page(src_inode, src + i, true);
+			psrc = f2fs_get_lock_data_page(src_inode,
+							src + i, true);
 			if (IS_ERR(psrc))
 				return PTR_ERR(psrc);
-			pdst = get_new_data_page(dst_inode, NULL, dst + i,
+			pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
 								true);
 			if (IS_ERR(pdst)) {
 				f2fs_put_page(psrc, 1);
@@ -1091,7 +1094,8 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
 			f2fs_put_page(pdst, 1);
 			f2fs_put_page(psrc, 1);
 
-			ret = truncate_hole(src_inode, src + i, src + i + 1);
+			ret = f2fs_truncate_hole(src_inode,
+						src + i, src + i + 1);
 			if (ret)
 				return ret;
 			i++;
@@ -1208,7 +1212,7 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
 	new_size = i_size_read(inode) - len;
 	truncate_pagecache(inode, new_size);
 
-	ret = truncate_blocks(inode, new_size, true);
+	ret = f2fs_truncate_blocks(inode, new_size, true);
 	if (!ret)
 		f2fs_i_size_write(inode, new_size);
 out_unlock:
@@ -1233,7 +1237,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
 	}
 
 	dn->ofs_in_node = ofs_in_node;
-	ret = reserve_new_blocks(dn, count);
+	ret = f2fs_reserve_new_blocks(dn, count);
 	if (ret)
 		return ret;
 
@@ -1242,7 +1246,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
 		dn->data_blkaddr = datablock_addr(dn->inode,
 					dn->node_page, dn->ofs_in_node);
 		/*
-		 * reserve_new_blocks will not guarantee entire block
+		 * f2fs_reserve_new_blocks will not guarantee entire block
 		 * allocation.
 		 */
 		if (dn->data_blkaddr == NULL_ADDR) {
@@ -1250,9 +1254,9 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
 			break;
 		}
 		if (dn->data_blkaddr != NEW_ADDR) {
-			invalidate_blocks(sbi, dn->data_blkaddr);
+			f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
 			dn->data_blkaddr = NEW_ADDR;
-			set_data_blkaddr(dn);
+			f2fs_set_data_blkaddr(dn);
 		}
 	}
 
@@ -1318,7 +1322,7 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			f2fs_lock_op(sbi);
 
 			set_new_dnode(&dn, inode, NULL, NULL, 0);
-			ret = get_dnode_of_data(&dn, index, ALLOC_NODE);
+			ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
 			if (ret) {
 				f2fs_unlock_op(sbi);
 				goto out;
@@ -1392,7 +1396,7 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	down_write(&F2FS_I(inode)->i_mmap_sem);
-	ret = truncate_blocks(inode, i_size_read(inode), true);
+	ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
 	if (ret)
 		goto out;
 
@@ -1553,7 +1557,7 @@ static int f2fs_release_file(struct inode *inode, struct file *filp)
 
 	/* some remained atomic pages should discarded */
 	if (f2fs_is_atomic_file(inode))
-		drop_inmem_pages(inode);
+		f2fs_drop_inmem_pages(inode);
 	if (f2fs_is_volatile_file(inode)) {
 		clear_inode_flag(inode, FI_VOLATILE_FILE);
 		stat_dec_volatile_write(inode);
@@ -1576,7 +1580,7 @@ static int f2fs_file_flush(struct file *file, fl_owner_t id)
 	 */
 	if (f2fs_is_atomic_file(inode) &&
 			F2FS_I(inode)->inmem_task == current)
-		drop_inmem_pages(inode);
+		f2fs_drop_inmem_pages(inode);
 	return 0;
 }
 
@@ -1732,7 +1736,7 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
 	}
 
 	if (f2fs_is_atomic_file(inode)) {
-		ret = commit_inmem_pages(inode);
+		ret = f2fs_commit_inmem_pages(inode);
 		if (ret)
 			goto err_out;
 
@@ -1835,7 +1839,7 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
 	inode_lock(inode);
 
 	if (f2fs_is_atomic_file(inode))
-		drop_inmem_pages(inode);
+		f2fs_drop_inmem_pages(inode);
 	if (f2fs_is_volatile_file(inode)) {
 		clear_inode_flag(inode, FI_VOLATILE_FILE);
 		stat_dec_volatile_write(inode);
@@ -1892,7 +1896,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
 		f2fs_stop_checkpoint(sbi, false);
 		break;
 	case F2FS_GOING_DOWN_METAFLUSH:
-		sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
+		f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
 		f2fs_stop_checkpoint(sbi, false);
 		break;
 	default:
@@ -1900,10 +1904,10 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
 		goto out;
 	}
 
-	stop_gc_thread(sbi);
-	stop_discard_thread(sbi);
+	f2fs_stop_gc_thread(sbi);
+	f2fs_stop_discard_thread(sbi);
 
-	drop_discard_cmd(sbi);
+	f2fs_drop_discard_cmd(sbi);
 	clear_opt(sbi, DISCARD);
 
 	f2fs_update_time(sbi, REQ_TIME);
@@ -2096,7 +2100,7 @@ out:
 	return ret;
 }
 
-static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
+static int f2fs_ioc_f2fs_write_checkpoint(struct file *filp, unsigned long arg)
 {
 	struct inode *inode = file_inode(filp);
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@ -2134,7 +2138,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 	int err;
 
 	/* if in-place-update policy is enabled, don't waste time here */
-	if (should_update_inplace(inode, NULL))
+	if (f2fs_should_update_inplace(inode, NULL))
 		return -EINVAL;
 
 	pg_start = range->start >> PAGE_SHIFT;
@@ -2229,7 +2233,7 @@ do_map:
 		while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
 			struct page *page;
 
-			page = get_lock_data_page(inode, idx, true);
+			page = f2fs_get_lock_data_page(inode, idx, true);
 			if (IS_ERR(page)) {
 				err = PTR_ERR(page);
 				goto clear_out;
@@ -2569,7 +2573,7 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
 	if (IS_NOQUOTA(inode))
 		goto out_unlock;
 
-	ipage = get_node_page(sbi, inode->i_ino);
+	ipage = f2fs_get_node_page(sbi, inode->i_ino);
 	if (IS_ERR(ipage)) {
 		err = PTR_ERR(ipage);
 		goto out_unlock;
@@ -2764,7 +2768,7 @@ static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
 
 	inode_lock(inode);
 
-	if (should_update_outplace(inode, NULL)) {
+	if (f2fs_should_update_outplace(inode, NULL)) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -2877,7 +2881,7 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case F2FS_IOC_GARBAGE_COLLECT_RANGE:
 		return f2fs_ioc_gc_range(filp, arg);
 	case F2FS_IOC_WRITE_CHECKPOINT:
-		return f2fs_ioc_write_checkpoint(filp, arg);
+		return f2fs_ioc_f2fs_write_checkpoint(filp, arg);
 	case F2FS_IOC_DEFRAGMENT:
 		return f2fs_ioc_defragment(filp, arg);
 	case F2FS_IOC_MOVE_RANGE: