[mirror_ubuntu-artful-kernel.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_node *rn;
	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);

	rn = F2FS_NODE(node_page);
	ri = &(rn->i);

	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_node *rn;
	struct f2fs_inode *ri;

	f2fs_wait_on_page_writeback(node_page, NODE, false);

	rn = F2FS_NODE(node_page);
	ri = &(rn->i);

	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);
	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;
	70	struct f2fs_node *rn;
	71	struct f2fs_inode *ri;
	72
	73	/* Check if ino is within scope */
064e0823 NJ	74	if (check_nid_range(sbi, inode->i_ino)) {
	75	f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu",
	76	(unsigned long) inode->i_ino);
	77	return -EINVAL;
	78	}
19f99cee JK	79
	80	node_page = get_node_page(sbi, inode->i_ino);
	81	if (IS_ERR(node_page))
	82	return PTR_ERR(node_page);
	83
45590710	84	rn = F2FS_NODE(node_page);
19f99cee JK	85	ri = &(rn->i);
	86
	87	inode->i_mode = le16_to_cpu(ri->i_mode);
	88	i_uid_write(inode, le32_to_cpu(ri->i_uid));
	89	i_gid_write(inode, le32_to_cpu(ri->i_gid));
	90	set_nlink(inode, le32_to_cpu(ri->i_links));
	91	inode->i_size = le64_to_cpu(ri->i_size);
	92	inode->i_blocks = le64_to_cpu(ri->i_blocks);
	93
	94	inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
	95	inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
	96	inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
	97	inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
	98	inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
	99	inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
	100	inode->i_generation = le32_to_cpu(ri->i_generation);
	101
	102	fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
	103	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
	104	fi->i_flags = le32_to_cpu(ri->i_flags);
	105	fi->flags = 0;
19f99cee	106	fi->i_advise = ri->i_advise;
6666e6aa	107	fi->i_pino = le32_to_cpu(ri->i_pino);
3d1e3807	108
19f99cee	109	get_extent_info(&fi->ext, ri->i_ext);
444c580f	110	get_inline_info(fi, ri);
3d1e3807 JK	111
	112	/* get rdev by using inline_info */
	113	__get_inode_rdev(inode, ri);
	114
19f99cee JK	115	f2fs_put_page(node_page, 1);
	116	return 0;
	117	}
	118
	119	struct inode f2fs_iget(struct super_block sb, unsigned long ino)
	120	{
	121	struct f2fs_sb_info *sbi = F2FS_SB(sb);
	122	struct inode *inode;
a2a4a7e4	123	int ret = 0;
19f99cee JK	124
	125	inode = iget_locked(sb, ino);
	126	if (!inode)
	127	return ERR_PTR(-ENOMEM);
a2a4a7e4 NJ	128
	129	if (!(inode->i_state & I_NEW)) {
	130	trace_f2fs_iget(inode);
19f99cee	131	return inode;
a2a4a7e4	132	}
19f99cee JK	133	if (ino == F2FS_NODE_INO(sbi) \|\| ino == F2FS_META_INO(sbi))
	134	goto make_now;
	135
	136	ret = do_read_inode(inode);
	137	if (ret)
	138	goto bad_inode;
19f99cee JK	139	make_now:
	140	if (ino == F2FS_NODE_INO(sbi)) {
	141	inode->i_mapping->a_ops = &f2fs_node_aops;
	142	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	143	} else if (ino == F2FS_META_INO(sbi)) {
	144	inode->i_mapping->a_ops = &f2fs_meta_aops;
	145	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
	146	} else if (S_ISREG(inode->i_mode)) {
	147	inode->i_op = &f2fs_file_inode_operations;
	148	inode->i_fop = &f2fs_file_operations;
	149	inode->i_mapping->a_ops = &f2fs_dblock_aops;
	150	} else if (S_ISDIR(inode->i_mode)) {
	151	inode->i_op = &f2fs_dir_inode_operations;
	152	inode->i_fop = &f2fs_dir_operations;
	153	inode->i_mapping->a_ops = &f2fs_dblock_aops;
6f85b352	154	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
19f99cee JK	155	} else if (S_ISLNK(inode->i_mode)) {
	156	inode->i_op = &f2fs_symlink_inode_operations;
	157	inode->i_mapping->a_ops = &f2fs_dblock_aops;
	158	} else if (S_ISCHR(inode->i_mode) \|\| S_ISBLK(inode->i_mode) \|\|
	159	S_ISFIFO(inode->i_mode) \|\| S_ISSOCK(inode->i_mode)) {
	160	inode->i_op = &f2fs_special_inode_operations;
	161	init_special_inode(inode, inode->i_mode, inode->i_rdev);
	162	} else {
	163	ret = -EIO;
	164	goto bad_inode;
	165	}
	166	unlock_new_inode(inode);
a2a4a7e4	167	trace_f2fs_iget(inode);
19f99cee JK	168	return inode;
	169
	170	bad_inode:
	171	iget_failed(inode);
a2a4a7e4	172	trace_f2fs_iget_exit(inode, ret);
19f99cee JK	173	return ERR_PTR(ret);
	174	}
	175
	176	void update_inode(struct inode inode, struct page node_page)
	177	{
	178	struct f2fs_node *rn;
	179	struct f2fs_inode *ri;
	180
a569469e	181	f2fs_wait_on_page_writeback(node_page, NODE, false);
19f99cee	182
45590710	183	rn = F2FS_NODE(node_page);
19f99cee JK	184	ri = &(rn->i);
	185
	186	ri->i_mode = cpu_to_le16(inode->i_mode);
	187	ri->i_advise = F2FS_I(inode)->i_advise;
	188	ri->i_uid = cpu_to_le32(i_uid_read(inode));
	189	ri->i_gid = cpu_to_le32(i_gid_read(inode));
	190	ri->i_links = cpu_to_le32(inode->i_nlink);
	191	ri->i_size = cpu_to_le64(i_size_read(inode));
	192	ri->i_blocks = cpu_to_le64(inode->i_blocks);
	193	set_raw_extent(&F2FS_I(inode)->ext, &ri->i_ext);
444c580f	194	set_raw_inline(F2FS_I(inode), ri);
19f99cee JK	195
	196	ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
	197	ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
	198	ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
	199	ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
	200	ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
	201	ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
	202	ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth);
	203	ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
	204	ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
6666e6aa	205	ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
19f99cee	206	ri->i_generation = cpu_to_le32(inode->i_generation);
7d79e75f	207
3d1e3807	208	__set_inode_rdev(inode, ri);
398b1ac5	209	set_cold_node(inode, node_page);
19f99cee	210	set_page_dirty(node_page);
3d1e3807	211
b3783873	212	clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
19f99cee JK	213	}
19f99cee JK	214
39936837	215	int update_inode_page(struct inode *inode)
19f99cee JK	216	{
	217	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	218	struct page *node_page;
7d82db83	219
19f99cee JK	220	node_page = get_node_page(sbi, inode->i_ino);
	221	if (IS_ERR(node_page))
	222	return PTR_ERR(node_page);
	223
19f99cee JK	224	update_inode(inode, node_page);
19f99cee JK	225	f2fs_put_page(node_page, 1);
19f99cee JK	226	return 0;
	227	}
	228
39936837 JK	229	int f2fs_write_inode(struct inode inode, struct writeback_control wbc)
	230	{
	231	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
e479556b	232	int ret;
39936837 JK	233
	234	if (inode->i_ino == F2FS_NODE_INO(sbi) \|\|
	235	inode->i_ino == F2FS_META_INO(sbi))
	236	return 0;
	237
b3783873 JK	238	if (!is_inode_flag_set(F2FS_I(inode), FI_DIRTY_INODE))
	239	return 0;
	240
39936837 JK	241	/*
	242	* We need to lock here to prevent from producing dirty node pages
	243	* during the urgent cleaning time when runing out of free sections.
	244	*/
e479556b	245	f2fs_lock_op(sbi);
39936837	246	ret = update_inode_page(inode);
e479556b	247	f2fs_unlock_op(sbi);
92c4342f JX	248
	249	if (wbc)
	250	f2fs_balance_fs(sbi);
	251
39936837 JK	252	return ret;
	253	}
	254
0a8165d7	255	/*
19f99cee JK	256	* Called at the last iput() if i_nlink is zero
	257	*/
	258	void f2fs_evict_inode(struct inode *inode)
	259	{
	260	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	261
a2a4a7e4	262	trace_f2fs_evict_inode(inode);
19f99cee JK	263	truncate_inode_pages(&inode->i_data, 0);
	264
	265	if (inode->i_ino == F2FS_NODE_INO(sbi) \|\|
	266	inode->i_ino == F2FS_META_INO(sbi))
	267	goto no_delete;
	268
5d56b671	269	f2fs_bug_on(atomic_read(&F2FS_I(inode)->dirty_dents));
19f99cee JK	270	remove_dirty_dir_inode(inode);
	271
	272	if (inode->i_nlink \|\| is_bad_inode(inode))
	273	goto no_delete;
	274
d6212a5f	275	sb_start_intwrite(inode->i_sb);
19f99cee JK	276	set_inode_flag(F2FS_I(inode), FI_NO_ALLOC);
	277	i_size_write(inode, 0);
	278
	279	if (F2FS_HAS_BLOCKS(inode))
	280	f2fs_truncate(inode);
	281
e479556b	282	f2fs_lock_op(sbi);
19f99cee	283	remove_inode_page(inode);
e479556b	284	f2fs_unlock_op(sbi);
39936837	285
d6212a5f	286	sb_end_intwrite(inode->i_sb);
19f99cee JK	287	no_delete:
	288	clear_inode(inode);
	289	}