linux/fs/f2fs/namei.c

// SPDX-License-Identifier: GPL-2.0
/*
 * fs/f2fs/namei.c
 *
 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
 *             http://www.samsung.com/
 */
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include <linux/pagemap.h>
#include <linux/sched.h>
#include <linux/ctype.h>
#include <linux/random.h>
#include <linux/dcache.h>
#include <linux/namei.h>
#include <linux/quotaops.h>

#include "f2fs.h"
#include "node.h"
#include "segment.h"
#include "xattr.h"
#include "acl.h"
#include <trace/events/f2fs.h>

static inline bool is_extension_exist(const unsigned char *s, const char *sub,
						bool tmp_ext, bool tmp_dot)
{ … }

static inline bool is_temperature_extension(const unsigned char *s, const char *sub)
{ … }

static inline bool is_compress_extension(const unsigned char *s, const char *sub)
{ … }

int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
							bool hot, bool set)
{ … }

static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
				struct inode *inode, const unsigned char *name)
{ … }

/*
 * Set file's temperature for hot/cold data separation
 */
static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
		const unsigned char *name)
{ … }

static struct inode *f2fs_new_inode(struct mnt_idmap *idmap,
						struct inode *dir, umode_t mode,
						const char *name)
{ … }

static int f2fs_create(struct mnt_idmap *idmap, struct inode *dir,
		       struct dentry *dentry, umode_t mode, bool excl)
{ … }

static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
		struct dentry *dentry)
{ … }

struct dentry *f2fs_get_parent(struct dentry *child)
{ … }

static int __recover_dot_dentries(struct inode *dir, nid_t pino)
{ … }

static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
		unsigned int flags)
{ … }

static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
{ … }

static const char *f2fs_get_link(struct dentry *dentry,
				 struct inode *inode,
				 struct delayed_call *done)
{ … }

static int f2fs_symlink(struct mnt_idmap *idmap, struct inode *dir,
			struct dentry *dentry, const char *symname)
{ … }

static int f2fs_mkdir(struct mnt_idmap *idmap, struct inode *dir,
		      struct dentry *dentry, umode_t mode)
{ … }

static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
{ … }

static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir,
		      struct dentry *dentry, umode_t mode, dev_t rdev)
{ … }

static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
			  struct file *file, umode_t mode, bool is_whiteout,
			  struct inode **new_inode, struct f2fs_filename *fname)
{ … }

static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
			struct file *file, umode_t mode)
{ … }

static int f2fs_create_whiteout(struct mnt_idmap *idmap,
				struct inode *dir, struct inode **whiteout,
				struct f2fs_filename *fname)
{ … }

int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
		     struct inode **new_inode)
{ … }

static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
			struct dentry *old_dentry, struct inode *new_dir,
			struct dentry *new_dentry, unsigned int flags)
{ … }

static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
			     struct inode *new_dir, struct dentry *new_dentry)
{ … }

static int f2fs_rename2(struct mnt_idmap *idmap,
			struct inode *old_dir, struct dentry *old_dentry,
			struct inode *new_dir, struct dentry *new_dentry,
			unsigned int flags)
{ … }

static const char *f2fs_encrypted_get_link(struct dentry *dentry,
					   struct inode *inode,
					   struct delayed_call *done)
{ … }

static int f2fs_encrypted_symlink_getattr(struct mnt_idmap *idmap,
					  const struct path *path,
					  struct kstat *stat, u32 request_mask,
					  unsigned int query_flags)
{ … }

const struct inode_operations f2fs_encrypted_symlink_inode_operations = …;

const struct inode_operations f2fs_dir_inode_operations = …;

const struct inode_operations f2fs_symlink_inode_operations = …;

const struct inode_operations f2fs_special_inode_operations = …;