547 static int f2fs_file_open(struct inode *inode, struct file *filp)  in f2fs_file_open()  argument
549 	int err = fscrypt_file_open(inode, filp);  in f2fs_file_open()
557 	err = fsverity_file_open(inode, filp);  in f2fs_file_open()
561 	filp->f_mode |= FMODE_NOWAIT;  in f2fs_file_open()
563 	return dquot_file_open(inode, filp);  in f2fs_file_open()
1803 static int f2fs_release_file(struct inode *inode, struct file *filp)  in f2fs_release_file()  argument
1809 	if (!(filp->f_mode & FMODE_WRITE) ||  in f2fs_release_file()
1978 static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)  in f2fs_ioc_getflags()  argument
1980 	struct inode *inode = file_inode(filp);  in f2fs_ioc_getflags()
1998 static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)  in f2fs_ioc_setflags()  argument
2000 	struct inode *inode = file_inode(filp);  in f2fs_ioc_setflags()
2020 	ret = mnt_want_write_file(filp);  in f2fs_ioc_setflags()
2035 	mnt_drop_write_file(filp);  in f2fs_ioc_setflags()
2039 static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)  in f2fs_ioc_getversion()  argument
2041 	struct inode *inode = file_inode(filp);  in f2fs_ioc_getversion()
2046 static int f2fs_ioc_start_atomic_write(struct file *filp)  in f2fs_ioc_start_atomic_write()  argument
2048 	struct inode *inode = file_inode(filp);  in f2fs_ioc_start_atomic_write()
2059 	if (filp->f_flags & O_DIRECT)  in f2fs_ioc_start_atomic_write()
2062 	ret = mnt_want_write_file(filp);  in f2fs_ioc_start_atomic_write()
2114 	mnt_drop_write_file(filp);  in f2fs_ioc_start_atomic_write()
2118 static int f2fs_ioc_commit_atomic_write(struct file *filp)  in f2fs_ioc_commit_atomic_write()  argument
2120 	struct inode *inode = file_inode(filp);  in f2fs_ioc_commit_atomic_write()
2126 	ret = mnt_want_write_file(filp);  in f2fs_ioc_commit_atomic_write()
2144 		ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);  in f2fs_ioc_commit_atomic_write()
2148 		ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);  in f2fs_ioc_commit_atomic_write()
2156 	mnt_drop_write_file(filp);  in f2fs_ioc_commit_atomic_write()
2160 static int f2fs_ioc_start_volatile_write(struct file *filp)  in f2fs_ioc_start_volatile_write()  argument
2162 	struct inode *inode = file_inode(filp);  in f2fs_ioc_start_volatile_write()
2171 	ret = mnt_want_write_file(filp);  in f2fs_ioc_start_volatile_write()
2191 	mnt_drop_write_file(filp);  in f2fs_ioc_start_volatile_write()
2195 static int f2fs_ioc_release_volatile_write(struct file *filp)  in f2fs_ioc_release_volatile_write()  argument
2197 	struct inode *inode = file_inode(filp);  in f2fs_ioc_release_volatile_write()
2203 	ret = mnt_want_write_file(filp);  in f2fs_ioc_release_volatile_write()
2220 	mnt_drop_write_file(filp);  in f2fs_ioc_release_volatile_write()
2224 static int f2fs_ioc_abort_volatile_write(struct file *filp)  in f2fs_ioc_abort_volatile_write()  argument
2226 	struct inode *inode = file_inode(filp);  in f2fs_ioc_abort_volatile_write()
2232 	ret = mnt_want_write_file(filp);  in f2fs_ioc_abort_volatile_write()
2243 		ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);  in f2fs_ioc_abort_volatile_write()
2250 	mnt_drop_write_file(filp);  in f2fs_ioc_abort_volatile_write()
2255 static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)  in f2fs_ioc_shutdown()  argument
2257 	struct inode *inode = file_inode(filp);  in f2fs_ioc_shutdown()
2270 		ret = mnt_want_write_file(filp);  in f2fs_ioc_shutdown()
2330 		mnt_drop_write_file(filp);  in f2fs_ioc_shutdown()
2337 static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)  in f2fs_ioc_fitrim()  argument
2339 	struct inode *inode = file_inode(filp);  in f2fs_ioc_fitrim()
2355 	ret = mnt_want_write_file(filp);  in f2fs_ioc_fitrim()
2362 	mnt_drop_write_file(filp);  in f2fs_ioc_fitrim()
2383 static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)  in f2fs_ioc_set_encryption_policy()  argument
2385 	struct inode *inode = file_inode(filp);  in f2fs_ioc_set_encryption_policy()
2392 	return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);  in f2fs_ioc_set_encryption_policy()
2395 static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)  in f2fs_ioc_get_encryption_policy()  argument
2397 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_get_encryption_policy()
2399 	return fscrypt_ioctl_get_policy(filp, (void __user *)arg);  in f2fs_ioc_get_encryption_policy()
2402 static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)  in f2fs_ioc_get_encryption_pwsalt()  argument
2404 	struct inode *inode = file_inode(filp);  in f2fs_ioc_get_encryption_pwsalt()
2411 	err = mnt_want_write_file(filp);  in f2fs_ioc_get_encryption_pwsalt()
2435 	mnt_drop_write_file(filp);  in f2fs_ioc_get_encryption_pwsalt()
2439 static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,  in f2fs_ioc_get_encryption_policy_ex()  argument
2442 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_get_encryption_policy_ex()
2445 	return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);  in f2fs_ioc_get_encryption_policy_ex()
2448 static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)  in f2fs_ioc_add_encryption_key()  argument
2450 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_add_encryption_key()
2453 	return fscrypt_ioctl_add_key(filp, (void __user *)arg);  in f2fs_ioc_add_encryption_key()
2456 static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)  in f2fs_ioc_remove_encryption_key()  argument
2458 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_remove_encryption_key()
2461 	return fscrypt_ioctl_remove_key(filp, (void __user *)arg);  in f2fs_ioc_remove_encryption_key()
2464 static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,  in f2fs_ioc_remove_encryption_key_all_users()  argument
2467 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_remove_encryption_key_all_users()
2470 	return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);  in f2fs_ioc_remove_encryption_key_all_users()
2473 static int f2fs_ioc_get_encryption_key_status(struct file *filp,  in f2fs_ioc_get_encryption_key_status()  argument
2476 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_get_encryption_key_status()
2479 	return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);  in f2fs_ioc_get_encryption_key_status()
2482 static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)  in f2fs_ioc_get_encryption_nonce()  argument
2484 	if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_get_encryption_nonce()
2487 	return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);  in f2fs_ioc_get_encryption_nonce()
2490 static int f2fs_ioc_gc(struct file *filp, unsigned long arg)  in f2fs_ioc_gc()  argument
2492 	struct inode *inode = file_inode(filp);  in f2fs_ioc_gc()
2506 	ret = mnt_want_write_file(filp);  in f2fs_ioc_gc()
2521 	mnt_drop_write_file(filp);  in f2fs_ioc_gc()
2525 static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)  in __f2fs_ioc_gc_range()  argument
2527 	struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));  in __f2fs_ioc_gc_range()
2541 	ret = mnt_want_write_file(filp);  in __f2fs_ioc_gc_range()
2566 	mnt_drop_write_file(filp);  in __f2fs_ioc_gc_range()
2570 static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)  in f2fs_ioc_gc_range()  argument
2577 	return __f2fs_ioc_gc_range(filp, &range);  in f2fs_ioc_gc_range()
2580 static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)  in f2fs_ioc_write_checkpoint()  argument
2582 	struct inode *inode = file_inode(filp);  in f2fs_ioc_write_checkpoint()
2597 	ret = mnt_want_write_file(filp);  in f2fs_ioc_write_checkpoint()
2603 	mnt_drop_write_file(filp);  in f2fs_ioc_write_checkpoint()
2608 					struct file *filp,  in f2fs_defragment_range()  argument
2611 	struct inode *inode = file_inode(filp);  in f2fs_defragment_range()
2759 static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)  in f2fs_ioc_defragment()  argument
2761 	struct inode *inode = file_inode(filp);  in f2fs_ioc_defragment()
2787 	err = mnt_want_write_file(filp);  in f2fs_ioc_defragment()
2791 	err = f2fs_defragment_range(sbi, filp, &range);  in f2fs_ioc_defragment()
2792 	mnt_drop_write_file(filp);  in f2fs_ioc_defragment()
2920 static int __f2fs_ioc_move_range(struct file *filp,  in __f2fs_ioc_move_range()  argument
2926 	if (!(filp->f_mode & FMODE_READ) ||  in __f2fs_ioc_move_range()
2927 			!(filp->f_mode & FMODE_WRITE))  in __f2fs_ioc_move_range()
2939 	err = mnt_want_write_file(filp);  in __f2fs_ioc_move_range()
2943 	err = f2fs_move_file_range(filp, range->pos_in, dst.file,  in __f2fs_ioc_move_range()
2946 	mnt_drop_write_file(filp);  in __f2fs_ioc_move_range()
2952 static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)  in f2fs_ioc_move_range()  argument
2959 	return __f2fs_ioc_move_range(filp, &range);  in f2fs_ioc_move_range()
2962 static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)  in f2fs_ioc_flush_device()  argument
2964 	struct inode *inode = file_inode(filp);  in f2fs_ioc_flush_device()
2992 	ret = mnt_want_write_file(filp);  in f2fs_ioc_flush_device()
3021 	mnt_drop_write_file(filp);  in f2fs_ioc_flush_device()
3025 static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)  in f2fs_ioc_get_features()  argument
3027 	struct inode *inode = file_inode(filp);  in f2fs_ioc_get_features()
3054 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)  in f2fs_ioc_setproject()  argument
3056 	struct inode *inode = file_inode(filp);  in f2fs_ioc_setproject()
3117 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)  in f2fs_ioc_setproject()  argument
3189 static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)  in f2fs_ioc_fsgetxattr()  argument
3191 	struct inode *inode = file_inode(filp);  in f2fs_ioc_fsgetxattr()
3201 static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)  in f2fs_ioc_fssetxattr()  argument
3203 	struct inode *inode = file_inode(filp);  in f2fs_ioc_fssetxattr()
3222 	err = mnt_want_write_file(filp);  in f2fs_ioc_fssetxattr()
3238 	err = f2fs_ioc_setproject(filp, fa.fsx_projid);  in f2fs_ioc_fssetxattr()
3241 	mnt_drop_write_file(filp);  in f2fs_ioc_fssetxattr()
3265 static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)  in f2fs_ioc_set_pin_file()  argument
3267 	struct inode *inode = file_inode(filp);  in f2fs_ioc_set_pin_file()
3280 	ret = mnt_want_write_file(filp);  in f2fs_ioc_set_pin_file()
3317 	mnt_drop_write_file(filp);  in f2fs_ioc_set_pin_file()
3321 static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)  in f2fs_ioc_get_pin_file()  argument
3323 	struct inode *inode = file_inode(filp);  in f2fs_ioc_get_pin_file()
3364 static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)  in f2fs_ioc_precache_extents()  argument
3366 	return f2fs_precache_extents(file_inode(filp));  in f2fs_ioc_precache_extents()
3369 static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)  in f2fs_ioc_resize_fs()  argument
3371 	struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));  in f2fs_ioc_resize_fs()
3387 static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)  in f2fs_ioc_enable_verity()  argument
3389 	struct inode *inode = file_inode(filp);  in f2fs_ioc_enable_verity()
3400 	return fsverity_ioctl_enable(filp, (const void __user *)arg);  in f2fs_ioc_enable_verity()
3403 static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)  in f2fs_ioc_measure_verity()  argument
3405 	if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_measure_verity()
3408 	return fsverity_ioctl_measure(filp, (void __user *)arg);  in f2fs_ioc_measure_verity()
3411 static int f2fs_ioc_read_verity_metadata(struct file *filp, unsigned long arg)  in f2fs_ioc_read_verity_metadata()  argument
3413 	if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))  in f2fs_ioc_read_verity_metadata()
3416 	return fsverity_ioctl_read_metadata(filp, (const void __user *)arg);  in f2fs_ioc_read_verity_metadata()
3419 static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)  in f2fs_ioc_getfslabel()  argument
3421 	struct inode *inode = file_inode(filp);  in f2fs_ioc_getfslabel()
3445 static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)  in f2fs_ioc_setfslabel()  argument
3447 	struct inode *inode = file_inode(filp);  in f2fs_ioc_setfslabel()
3459 	err = mnt_want_write_file(filp);  in f2fs_ioc_setfslabel()
3475 	mnt_drop_write_file(filp);  in f2fs_ioc_setfslabel()
3481 static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)  in f2fs_get_compress_blocks()  argument
3483 	struct inode *inode = file_inode(filp);  in f2fs_get_compress_blocks()
3550 static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)  in f2fs_release_compress_blocks()  argument
3552 	struct inode *inode = file_inode(filp);  in f2fs_release_compress_blocks()
3568 	ret = mnt_want_write_file(filp);  in f2fs_release_compress_blocks()
3577 	if ((filp->f_mode & FMODE_WRITE && writecount != 1) ||  in f2fs_release_compress_blocks()
3578 			(!(filp->f_mode & FMODE_WRITE) && writecount)) {  in f2fs_release_compress_blocks()
3640 	mnt_drop_write_file(filp);  in f2fs_release_compress_blocks()
3719 static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)  in f2fs_reserve_compress_blocks()  argument
3721 	struct inode *inode = file_inode(filp);  in f2fs_reserve_compress_blocks()
3736 	ret = mnt_want_write_file(filp);  in f2fs_reserve_compress_blocks()
3799 	mnt_drop_write_file(filp);  in f2fs_reserve_compress_blocks()
3844 static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)  in f2fs_sec_trim_file()  argument
3846 	struct inode *inode = file_inode(filp);  in f2fs_sec_trim_file()
3857 	if (!(filp->f_mode & FMODE_WRITE))  in f2fs_sec_trim_file()
3874 	file_start_write(filp);  in f2fs_sec_trim_file()
3999 	file_end_write(filp);  in f2fs_sec_trim_file()
4004 static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg)  in f2fs_ioc_get_compress_option()  argument
4006 	struct inode *inode = file_inode(filp);  in f2fs_ioc_get_compress_option()
4031 static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg)  in f2fs_ioc_set_compress_option()  argument
4033 	struct inode *inode = file_inode(filp);  in f2fs_ioc_set_compress_option()
4041 	if (!(filp->f_mode & FMODE_WRITE))  in f2fs_ioc_set_compress_option()
4054 	file_start_write(filp);  in f2fs_ioc_set_compress_option()
4077 	file_end_write(filp);  in f2fs_ioc_set_compress_option()
4115 static int f2fs_ioc_decompress_file(struct file *filp, unsigned long arg)  in f2fs_ioc_decompress_file()  argument
4117 	struct inode *inode = file_inode(filp);  in f2fs_ioc_decompress_file()
4129 	if (!(filp->f_mode & FMODE_WRITE))  in f2fs_ioc_decompress_file()
4137 	file_start_write(filp);  in f2fs_ioc_decompress_file()
4183 	file_end_write(filp);  in f2fs_ioc_decompress_file()
4188 static int f2fs_ioc_compress_file(struct file *filp, unsigned long arg)  in f2fs_ioc_compress_file()  argument
4190 	struct inode *inode = file_inode(filp);  in f2fs_ioc_compress_file()
4201 	if (!(filp->f_mode & FMODE_WRITE))  in f2fs_ioc_compress_file()
4209 	file_start_write(filp);  in f2fs_ioc_compress_file()
4256 	file_end_write(filp);  in f2fs_ioc_compress_file()
4261 static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)  in __f2fs_ioctl()  argument
4265 		return f2fs_ioc_getflags(filp, arg);  in __f2fs_ioctl()
4267 		return f2fs_ioc_setflags(filp, arg);  in __f2fs_ioctl()
4269 		return f2fs_ioc_getversion(filp, arg);  in __f2fs_ioctl()
4271 		return f2fs_ioc_start_atomic_write(filp);  in __f2fs_ioctl()
4273 		return f2fs_ioc_commit_atomic_write(filp);  in __f2fs_ioctl()
4275 		return f2fs_ioc_start_volatile_write(filp);  in __f2fs_ioctl()
4277 		return f2fs_ioc_release_volatile_write(filp);  in __f2fs_ioctl()
4279 		return f2fs_ioc_abort_volatile_write(filp);  in __f2fs_ioctl()
4281 		return f2fs_ioc_shutdown(filp, arg);  in __f2fs_ioctl()
4283 		return f2fs_ioc_fitrim(filp, arg);  in __f2fs_ioctl()
4285 		return f2fs_ioc_set_encryption_policy(filp, arg);  in __f2fs_ioctl()
4287 		return f2fs_ioc_get_encryption_policy(filp, arg);  in __f2fs_ioctl()
4289 		return f2fs_ioc_get_encryption_pwsalt(filp, arg);  in __f2fs_ioctl()
4291 		return f2fs_ioc_get_encryption_policy_ex(filp, arg);  in __f2fs_ioctl()
4293 		return f2fs_ioc_add_encryption_key(filp, arg);  in __f2fs_ioctl()
4295 		return f2fs_ioc_remove_encryption_key(filp, arg);  in __f2fs_ioctl()
4297 		return f2fs_ioc_remove_encryption_key_all_users(filp, arg);  in __f2fs_ioctl()
4299 		return f2fs_ioc_get_encryption_key_status(filp, arg);  in __f2fs_ioctl()
4301 		return f2fs_ioc_get_encryption_nonce(filp, arg);  in __f2fs_ioctl()
4303 		return f2fs_ioc_gc(filp, arg);  in __f2fs_ioctl()
4305 		return f2fs_ioc_gc_range(filp, arg);  in __f2fs_ioctl()
4307 		return f2fs_ioc_write_checkpoint(filp, arg);  in __f2fs_ioctl()
4309 		return f2fs_ioc_defragment(filp, arg);  in __f2fs_ioctl()
4311 		return f2fs_ioc_move_range(filp, arg);  in __f2fs_ioctl()
4313 		return f2fs_ioc_flush_device(filp, arg);  in __f2fs_ioctl()
4315 		return f2fs_ioc_get_features(filp, arg);  in __f2fs_ioctl()
4317 		return f2fs_ioc_fsgetxattr(filp, arg);  in __f2fs_ioctl()
4319 		return f2fs_ioc_fssetxattr(filp, arg);  in __f2fs_ioctl()
4321 		return f2fs_ioc_get_pin_file(filp, arg);  in __f2fs_ioctl()
4323 		return f2fs_ioc_set_pin_file(filp, arg);  in __f2fs_ioctl()
4325 		return f2fs_ioc_precache_extents(filp, arg);  in __f2fs_ioctl()
4327 		return f2fs_ioc_resize_fs(filp, arg);  in __f2fs_ioctl()
4329 		return f2fs_ioc_enable_verity(filp, arg);  in __f2fs_ioctl()
4331 		return f2fs_ioc_measure_verity(filp, arg);  in __f2fs_ioctl()
4333 		return f2fs_ioc_read_verity_metadata(filp, arg);  in __f2fs_ioctl()
4335 		return f2fs_ioc_getfslabel(filp, arg);  in __f2fs_ioctl()
4337 		return f2fs_ioc_setfslabel(filp, arg);  in __f2fs_ioctl()
4339 		return f2fs_get_compress_blocks(filp, arg);  in __f2fs_ioctl()
4341 		return f2fs_release_compress_blocks(filp, arg);  in __f2fs_ioctl()
4343 		return f2fs_reserve_compress_blocks(filp, arg);  in __f2fs_ioctl()
4345 		return f2fs_sec_trim_file(filp, arg);  in __f2fs_ioctl()
4347 		return f2fs_ioc_get_compress_option(filp, arg);  in __f2fs_ioctl()
4349 		return f2fs_ioc_set_compress_option(filp, arg);  in __f2fs_ioctl()
4351 		return f2fs_ioc_decompress_file(filp, arg);  in __f2fs_ioctl()
4353 		return f2fs_ioc_compress_file(filp, arg);  in __f2fs_ioctl()
4359 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)  in f2fs_ioctl()  argument
4361 	if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))  in f2fs_ioctl()
4363 	if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))  in f2fs_ioctl()
4366 	return __f2fs_ioctl(filp, cmd, arg);  in f2fs_ioctl()