[deliverable/linux.git] / fs / f2fs / inode.c

/*
 * fs/f2fs/inode.c
 *
 * 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.
 */
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>

#include "f2fs.h"
#include "node.h"

#include <trace/events/f2fs.h>

void f2fs_set_inode_flags(struct inode *inode)
{
	unsigned int flags = F2FS_I(inode)->i_flags;

	inode->i_flags &= ~(S_SYNC | S_APPEND | S_IMMUTABLE |
			S_NOATIME | S_DIRSYNC);

	if (flags & FS_SYNC_FL)
		inode->i_flags |= S_SYNC;
	if (flags & FS_APPEND_FL)
		inode->i_flags |= S_APPEND;
	if (flags & FS_IMMUTABLE_FL)
		inode->i_flags |= S_IMMUTABLE;
	if (flags & FS_NOATIME_FL)
		inode->i_flags |= S_NOATIME;
	if (flags & FS_DIRSYNC_FL)
		inode->i_flags |= S_DIRSYNC;
}

static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
{
	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
		if (ri->i_addr[0])
			inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
		else
			inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
	}
}

static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
{
	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
		if (old_valid_dev(inode->i_rdev)) {
			ri->i_addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev));
			ri->i_addr[1] = 0;
		} else {
			ri->i_addr[0] = 0;
			ri->i_addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev));
			ri->i_addr[2] = 0;
		}
	}
}

static int do_read_inode(struct inode *inode)
{
	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	struct f2fs_inode_info *fi = F2FS_I(inode);
	struct page *node_page;
	struct f2fs_inode *ri;

	/* Check if ino is within scope */
	if (check_nid_range(sbi, inode->i_ino)) {
		f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu",
			 (unsigned long) inode->i_ino);
		return -EINVAL;
	}

	node_page = get_node_page(sbi, inode->i_ino);
	if (IS_ERR(node_page))
		return PTR_ERR(node_page);

	ri = F2FS_INODE(node_page);

	inode->i_mode = le16_to_cpu(ri->i_mode);
	i_uid_write(inode, le32_to_cpu(ri->i_uid));
	i_gid_write(inode, le32_to_cpu(ri->i_gid));
	set_nlink(inode, le32_to_cpu(ri->i_links));
	inode->i_size = le64_to_cpu(ri->i_size);
	inode->i_blocks = le64_to_cpu(ri->i_blocks);

	inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
	inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
	inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
	inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
	inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
	inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
	inode->i_generation = le32_to_cpu(ri->i_generation);

	fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
	fi->i_flags = le32_to_cpu(ri->i_flags);
	fi->flags = 0;
	fi->i_advise = ri->i_advise;
	fi->i_pino = le32_to_cpu(ri->i_pino);

	get_extent_info(&fi->ext, ri->i_ext);
	get_inline_info(fi, ri);

	/* get rdev by using inline_info */
	__get_inode_rdev(inode, ri);

	f2fs_put_page(node_page, 1);
	return 0;
}

struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
{
	struct f2fs_sb_info *sbi = F2FS_SB(sb);
	struct inode *inode;
	int ret = 0;

	inode = iget_locked(sb, ino);
	if (!inode)
		return ERR_PTR(-ENOMEM);

	if (!(inode->i_state & I_NEW)) {
		trace_f2fs_iget(inode);
		return inode;
	}
	if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
		goto make_now;

	ret = do_read_inode(inode);
	if (ret)
		goto bad_inode;
make_now:
	if (ino == F2FS_NODE_INO(sbi)) {
		inode->i_mapping->a_ops = &f2fs_node_aops;
		mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	} else if (ino == F2FS_META_INO(sbi)) {
		inode->i_mapping->a_ops = &f2fs_meta_aops;
		mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	} else if (S_ISREG(inode->i_mode)) {
		inode->i_op = &f2fs_file_inode_operations;
		inode->i_fop = &f2fs_file_operations;
		inode->i_mapping->a_ops = &f2fs_dblock_aops;
	} else if (S_ISDIR(inode->i_mode)) {
		inode->i_op = &f2fs_dir_inode_operations;
		inode->i_fop = &f2fs_dir_operations;
		inode->i_mapping->a_ops = &f2fs_dblock_aops;
		mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	} else if (S_ISLNK(inode->i_mode)) {
		inode->i_op = &f2fs_symlink_inode_operations;
		inode->i_mapping->a_ops = &f2fs_dblock_aops;
	} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
		inode->i_op = &f2fs_special_inode_operations;
		init_special_inode(inode, inode->i_mode, inode->i_rdev);
	} else {
		ret = -EIO;
		goto bad_inode;
	}
	unlock_new_inode(inode);
	trace_f2fs_iget(inode);
	return inode;

bad_inode:
	iget_failed(inode);
	trace_f2fs_iget_exit(inode, ret);
	return ERR_PTR(ret);
}

void update_inode(struct inode *inode, struct page *node_page)
{
	struct f2fs_inode *ri;

	f2fs_wait_on_page_writeback(node_page, NODE, false);

	ri = F2FS_INODE(node_page);

	ri->i_mode = cpu_to_le16(inode->i_mode);
	ri->i_advise = F2FS_I(inode)->i_advise;
	ri->i_uid = cpu_to_le32(i_uid_read(inode));
	ri->i_gid = cpu_to_le32(i_gid_read(inode));
	ri->i_links = cpu_to_le32(inode->i_nlink);
	ri->i_size = cpu_to_le64(i_size_read(inode));
	ri->i_blocks = cpu_to_le64(inode->i_blocks);
	set_raw_extent(&F2FS_I(inode)->ext, &ri->i_ext);
	set_raw_inline(F2FS_I(inode), ri);

	ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
	ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
	ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
	ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
	ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
	ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
	ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth);
	ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
	ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
	ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
	ri->i_generation = cpu_to_le32(inode->i_generation);

	__set_inode_rdev(inode, ri);
	set_cold_node(inode, node_page);
	set_page_dirty(node_page);

	clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
}

int update_inode_page(struct inode *inode)
{
	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	struct page *node_page;

	node_page = get_node_page(sbi, inode->i_ino);
	if (IS_ERR(node_page))
		return PTR_ERR(node_page);

	update_inode(inode, node_page);
	f2fs_put_page(node_page, 1);
	return 0;
}

int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	int ret;

	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
			inode->i_ino == F2FS_META_INO(sbi))
		return 0;

	if (!is_inode_flag_set(F2FS_I(inode), FI_DIRTY_INODE))
		return 0;

	/*
	 * We need to lock here to prevent from producing dirty node pages
	 * during the urgent cleaning time when runing out of free sections.
	 */
	f2fs_lock_op(sbi);
	ret = update_inode_page(inode);
	f2fs_unlock_op(sbi);

	if (wbc)
		f2fs_balance_fs(sbi);

	return ret;
}

/*
 * Called at the last iput() if i_nlink is zero
 */
void f2fs_evict_inode(struct inode *inode)
{
	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);

	trace_f2fs_evict_inode(inode);
	truncate_inode_pages(&inode->i_data, 0);

	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
			inode->i_ino == F2FS_META_INO(sbi))
		goto no_delete;

	f2fs_bug_on(atomic_read(&F2FS_I(inode)->dirty_dents));
	remove_dirty_dir_inode(inode);

	if (inode->i_nlink || is_bad_inode(inode))
		goto no_delete;

	sb_start_intwrite(inode->i_sb);
	set_inode_flag(F2FS_I(inode), FI_NO_ALLOC);
	i_size_write(inode, 0);

	if (F2FS_HAS_BLOCKS(inode))
		f2fs_truncate(inode);

	f2fs_lock_op(sbi);
	remove_inode_page(inode);
	stat_dec_inline_inode(inode);
	f2fs_unlock_op(sbi);

	sb_end_intwrite(inode->i_sb);
no_delete:
	clear_inode(inode);
}
Commit	Line	Data
0a8165d7	1	/*
19f99cee JK	2	* fs/f2fs/inode.c
	3	*
	4	* Copyright (c) 2012 Samsung Electronics Co., Ltd.
	5	* http://www.samsung.com/
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11	#include <linux/fs.h>
	12	#include <linux/f2fs_fs.h>
	13	#include <linux/buffer_head.h>
	14	#include <linux/writeback.h>
	15
	16	#include "f2fs.h"
	17	#include "node.h"
	18
a2a4a7e4 NJ	19	#include <trace/events/f2fs.h>
a2a4a7e4 NJ	20
19f99cee JK	21	void f2fs_set_inode_flags(struct inode *inode)
	22	{
	23	unsigned int flags = F2FS_I(inode)->i_flags;
	24
	25	inode->i_flags &= ~(S_SYNC \| S_APPEND \| S_IMMUTABLE \|
	26	S_NOATIME \| S_DIRSYNC);
	27
	28	if (flags & FS_SYNC_FL)
	29	inode->i_flags \|= S_SYNC;
	30	if (flags & FS_APPEND_FL)
	31	inode->i_flags \|= S_APPEND;
	32	if (flags & FS_IMMUTABLE_FL)
	33	inode->i_flags \|= S_IMMUTABLE;
	34	if (flags & FS_NOATIME_FL)
	35	inode->i_flags \|= S_NOATIME;
	36	if (flags & FS_DIRSYNC_FL)
	37	inode->i_flags \|= S_DIRSYNC;
	38	}
	39
3d1e3807 JK	40	static void __get_inode_rdev(struct inode inode, struct f2fs_inode ri)
	41	{
	42	if (S_ISCHR(inode->i_mode) \|\| S_ISBLK(inode->i_mode) \|\|
	43	S_ISFIFO(inode->i_mode) \|\| S_ISSOCK(inode->i_mode)) {
	44	if (ri->i_addr[0])
	45	inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
	46	else
	47	inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
	48	}
	49	}
	50
	51	static void __set_inode_rdev(struct inode inode, struct f2fs_inode ri)
	52	{
	53	if (S_ISCHR(inode->i_mode) \|\| S_ISBLK(inode->i_mode)) {
	54	if (old_valid_dev(inode->i_rdev)) {
	55	ri->i_addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev));
	56	ri->i_addr[1] = 0;
	57	} else {
	58	ri->i_addr[0] = 0;
	59	ri->i_addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev));
	60	ri->i_addr[2] = 0;
	61	}
	62	}
	63	}
	64
19f99cee JK	65	static int do_read_inode(struct inode *inode)
	66	{
	67	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	68	struct f2fs_inode_info *fi = F2FS_I(inode);
	69	struct page *node_page;
19f99cee JK	70	struct f2fs_inode *ri;
	71
	72	/* Check if ino is within scope */
064e0823 NJ	73	if (check_nid_range(sbi, inode->i_ino)) {
	74	f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu",
	75	(unsigned long) inode->i_ino);
	76	return -EINVAL;
	77	}
19f99cee JK	78
	79	node_page = get_node_page(sbi, inode->i_ino);
	80	if (IS_ERR(node_page))
	81	return PTR_ERR(node_page);
	82
58bfaf44	83	ri = F2FS_INODE(node_page);
19f99cee JK	84
	85	inode->i_mode = le16_to_cpu(ri->i_mode);
	86	i_uid_write(inode, le32_to_cpu(ri->i_uid));
	87	i_gid_write(inode, le32_to_cpu(ri->i_gid));
	88	set_nlink(inode, le32_to_cpu(ri->i_links));
	89	inode->i_size = le64_to_cpu(ri->i_size);
	90	inode->i_blocks = le64_to_cpu(ri->i_blocks);
	91
	92	inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
	93	inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
	94	inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
	95	inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
	96	inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
	97	inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
	98	inode->i_generation = le32_to_cpu(ri->i_generation);
	99
	100	fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
	101	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
	102	fi->i_flags = le32_to_cpu(ri->i_flags);
	103	fi->flags = 0;
19f99cee	104	fi->i_advise = ri->i_advise;
6666e6aa	105	fi->i_pino = le32_to_cpu(ri->i_pino);
3d1e3807	106
19f99cee	107	get_extent_info(&fi->ext, ri->i_ext);
444c580f	108	get_inline_info(fi, ri);
3d1e3807 JK	109
	110	/* get rdev by using inline_info */
	111	__get_inode_rdev(inode, ri);
	112
19f99cee JK	113	f2fs_put_page(node_page, 1);
	114	return 0;
	115	}
	116
	117	struct inode f2fs_iget(struct super_block sb, unsigned long ino)
	118	{
	119	struct f2fs_sb_info *sbi = F2FS_SB(sb);
	120	struct inode *inode;
a2a4a7e4	121	int ret = 0;
19f99cee JK	122
	123	inode = iget_locked(sb, ino);
	124	if (!inode)
	125	return ERR_PTR(-ENOMEM);
a2a4a7e4 NJ	126
	127	if (!(inode->i_state & I_NEW)) {
	128	trace_f2fs_iget(inode);
19f99cee	129	return inode;
a2a4a7e4	130	}
19f99cee JK	131	if (ino == F2FS_NODE_INO(sbi) \|\| ino == F2FS_META_INO(sbi))
	132	goto make_now;
	133
	134	ret = do_read_inode(inode);
	135	if (ret)
	136	goto bad_inode;
19f99cee JK	137	make_now:
	138	if (ino == F2FS_NODE_INO(sbi)) {
	139	inode->i_mapping->a_ops = &f2fs_node_aops;
	140	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	141	} else if (ino == F2FS_META_INO(sbi)) {
	142	inode->i_mapping->a_ops = &f2fs_meta_aops;
	143	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	144	} else if (S_ISREG(inode->i_mode)) {
	145	inode->i_op = &f2fs_file_inode_operations;
	146	inode->i_fop = &f2fs_file_operations;
	147	inode->i_mapping->a_ops = &f2fs_dblock_aops;
	148	} else if (S_ISDIR(inode->i_mode)) {
	149	inode->i_op = &f2fs_dir_inode_operations;
	150	inode->i_fop = &f2fs_dir_operations;
	151	inode->i_mapping->a_ops = &f2fs_dblock_aops;
6f85b352	152	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
19f99cee JK	153	} else if (S_ISLNK(inode->i_mode)) {
	154	inode->i_op = &f2fs_symlink_inode_operations;
	155	inode->i_mapping->a_ops = &f2fs_dblock_aops;
	156	} else if (S_ISCHR(inode->i_mode) \|\| S_ISBLK(inode->i_mode) \|\|
	157	S_ISFIFO(inode->i_mode) \|\| S_ISSOCK(inode->i_mode)) {
	158	inode->i_op = &f2fs_special_inode_operations;
	159	init_special_inode(inode, inode->i_mode, inode->i_rdev);
	160	} else {
	161	ret = -EIO;
	162	goto bad_inode;
	163	}
	164	unlock_new_inode(inode);
a2a4a7e4	165	trace_f2fs_iget(inode);
19f99cee JK	166	return inode;
	167
	168	bad_inode:
	169	iget_failed(inode);
a2a4a7e4	170	trace_f2fs_iget_exit(inode, ret);
19f99cee JK	171	return ERR_PTR(ret);
	172	}
	173
	174	void update_inode(struct inode inode, struct page node_page)
	175	{
19f99cee JK	176	struct f2fs_inode *ri;
19f99cee JK	177
a569469e	178	f2fs_wait_on_page_writeback(node_page, NODE, false);
19f99cee	179
58bfaf44	180	ri = F2FS_INODE(node_page);
19f99cee JK	181
	182	ri->i_mode = cpu_to_le16(inode->i_mode);
	183	ri->i_advise = F2FS_I(inode)->i_advise;
	184	ri->i_uid = cpu_to_le32(i_uid_read(inode));
	185	ri->i_gid = cpu_to_le32(i_gid_read(inode));
	186	ri->i_links = cpu_to_le32(inode->i_nlink);
	187	ri->i_size = cpu_to_le64(i_size_read(inode));
	188	ri->i_blocks = cpu_to_le64(inode->i_blocks);
	189	set_raw_extent(&F2FS_I(inode)->ext, &ri->i_ext);
444c580f	190	set_raw_inline(F2FS_I(inode), ri);
19f99cee JK	191
	192	ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
	193	ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
	194	ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
	195	ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
	196	ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
	197	ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
	198	ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth);
	199	ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
	200	ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
6666e6aa	201	ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
19f99cee	202	ri->i_generation = cpu_to_le32(inode->i_generation);
7d79e75f	203
3d1e3807	204	__set_inode_rdev(inode, ri);
398b1ac5	205	set_cold_node(inode, node_page);
19f99cee	206	set_page_dirty(node_page);
3d1e3807	207
b3783873	208	clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
19f99cee JK	209	}
19f99cee JK	210
39936837	211	int update_inode_page(struct inode *inode)
19f99cee JK	212	{
	213	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	214	struct page *node_page;
7d82db83	215
19f99cee JK	216	node_page = get_node_page(sbi, inode->i_ino);
	217	if (IS_ERR(node_page))
	218	return PTR_ERR(node_page);
	219
19f99cee JK	220	update_inode(inode, node_page);
19f99cee JK	221	f2fs_put_page(node_page, 1);
19f99cee JK	222	return 0;
	223	}
	224
39936837 JK	225	int f2fs_write_inode(struct inode inode, struct writeback_control wbc)
	226	{
	227	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
e479556b	228	int ret;
39936837 JK	229
	230	if (inode->i_ino == F2FS_NODE_INO(sbi) \|\|
	231	inode->i_ino == F2FS_META_INO(sbi))
	232	return 0;
	233
b3783873 JK	234	if (!is_inode_flag_set(F2FS_I(inode), FI_DIRTY_INODE))
	235	return 0;
	236
39936837 JK	237	/*
	238	* We need to lock here to prevent from producing dirty node pages
	239	* during the urgent cleaning time when runing out of free sections.
	240	*/
e479556b	241	f2fs_lock_op(sbi);
39936837	242	ret = update_inode_page(inode);
e479556b	243	f2fs_unlock_op(sbi);
92c4342f JX	244
	245	if (wbc)
	246	f2fs_balance_fs(sbi);
	247
39936837 JK	248	return ret;
	249	}
	250
0a8165d7	251	/*
19f99cee JK	252	* Called at the last iput() if i_nlink is zero
	253	*/
	254	void f2fs_evict_inode(struct inode *inode)
	255	{
	256	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	257
a2a4a7e4	258	trace_f2fs_evict_inode(inode);
19f99cee JK	259	truncate_inode_pages(&inode->i_data, 0);
	260
	261	if (inode->i_ino == F2FS_NODE_INO(sbi) \|\|
	262	inode->i_ino == F2FS_META_INO(sbi))
	263	goto no_delete;
	264
5d56b671	265	f2fs_bug_on(atomic_read(&F2FS_I(inode)->dirty_dents));
19f99cee JK	266	remove_dirty_dir_inode(inode);
	267
	268	if (inode->i_nlink \|\| is_bad_inode(inode))
	269	goto no_delete;
	270
d6212a5f	271	sb_start_intwrite(inode->i_sb);
19f99cee JK	272	set_inode_flag(F2FS_I(inode), FI_NO_ALLOC);
	273	i_size_write(inode, 0);
	274
	275	if (F2FS_HAS_BLOCKS(inode))
	276	f2fs_truncate(inode);
	277
e479556b	278	f2fs_lock_op(sbi);
19f99cee	279	remove_inode_page(inode);
0dbdc2ae	280	stat_dec_inline_inode(inode);
e479556b	281	f2fs_unlock_op(sbi);
39936837	282
d6212a5f	283	sb_end_intwrite(inode->i_sb);
19f99cee JK	284	no_delete:
	285	clear_inode(inode);
	286	}