26 static ssize_t sdcardfs_read(struct file *file, char __user *buf,  in sdcardfs_read()  argument
30 	struct file *lower_file;  in sdcardfs_read()
31 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_read()
36 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_read()
39 	if (file->f_mode & FMODE_NOACTIVE) {  in sdcardfs_read()
59 static ssize_t sdcardfs_write(struct file *file, const char __user *buf,  in sdcardfs_write()  argument
63 	struct file *lower_file;  in sdcardfs_write()
64 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_write()
73 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_write()
88 static int sdcardfs_readdir(struct file *file, struct dir_context *ctx)  in sdcardfs_readdir()  argument
91 	struct file *lower_file = NULL;  in sdcardfs_readdir()
92 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_readdir()
94 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_readdir()
96 	lower_file->f_pos = file->f_pos;  in sdcardfs_readdir()
98 	file->f_pos = lower_file->f_pos;  in sdcardfs_readdir()
105 static long sdcardfs_unlocked_ioctl(struct file *file, unsigned int cmd,  in sdcardfs_unlocked_ioctl()  argument
109 	struct file *lower_file;  in sdcardfs_unlocked_ioctl()
111 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_unlocked_ioctl()
114 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_unlocked_ioctl()
121 	OVERRIDE_CRED(sbi, saved_cred, SDCARDFS_I(file_inode(file)));  in sdcardfs_unlocked_ioctl()
128 		sdcardfs_copy_and_fix_attrs(file_inode(file),  in sdcardfs_unlocked_ioctl()
136 static long sdcardfs_compat_ioctl(struct file *file, unsigned int cmd,  in sdcardfs_compat_ioctl()  argument
140 	struct file *lower_file;  in sdcardfs_compat_ioctl()
142 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_compat_ioctl()
145 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_compat_ioctl()
152 	OVERRIDE_CRED(sbi, saved_cred, SDCARDFS_I(file_inode(file)));  in sdcardfs_compat_ioctl()
163 static int sdcardfs_mmap(struct file *file, struct vm_area_struct *vma)  in sdcardfs_mmap()  argument
167 	struct file *lower_file;  in sdcardfs_mmap()
183 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_mmap()
195 	if (!SDCARDFS_F(file)->lower_vm_ops) {  in sdcardfs_mmap()
208 	file_accessed(file);  in sdcardfs_mmap()
211 	file->f_mapping->a_ops = &sdcardfs_aops; /* set our aops */  in sdcardfs_mmap()
212 	if (!SDCARDFS_F(file)->lower_vm_ops) /* save for our ->fault */  in sdcardfs_mmap()
213 		SDCARDFS_F(file)->lower_vm_ops = saved_vm_ops;  in sdcardfs_mmap()
214 	vma->vm_private_data = file;  in sdcardfs_mmap()
222 static int sdcardfs_open(struct inode *inode, struct file *file)  in sdcardfs_open()  argument
225 	struct file *lower_file = NULL;  in sdcardfs_open()
227 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_open()
246 	file->private_data =  in sdcardfs_open()
248 	if (!SDCARDFS_F(file)) {  in sdcardfs_open()
254 	sdcardfs_get_lower_path(file->f_path.dentry, &lower_path);  in sdcardfs_open()
255 	lower_file = dentry_open(&lower_path, file->f_flags, current_cred());  in sdcardfs_open()
259 		lower_file = sdcardfs_lower_file(file);  in sdcardfs_open()
261 			sdcardfs_set_lower_file(file, NULL);  in sdcardfs_open()
265 		sdcardfs_set_lower_file(file, lower_file);  in sdcardfs_open()
269 		kfree(SDCARDFS_F(file));  in sdcardfs_open()
280 static int sdcardfs_flush(struct file *file, fl_owner_t id)  in sdcardfs_flush()  argument
283 	struct file *lower_file = NULL;  in sdcardfs_flush()
285 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_flush()
287 		filemap_write_and_wait(file->f_mapping);  in sdcardfs_flush()
295 static int sdcardfs_file_release(struct inode *inode, struct file *file)  in sdcardfs_file_release()  argument
297 	struct file *lower_file;  in sdcardfs_file_release()
299 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_file_release()
301 		sdcardfs_set_lower_file(file, NULL);  in sdcardfs_file_release()
305 	kfree(SDCARDFS_F(file));  in sdcardfs_file_release()
309 static int sdcardfs_fsync(struct file *file, loff_t start, loff_t end,  in sdcardfs_fsync()  argument
313 	struct file *lower_file;  in sdcardfs_fsync()
315 	struct dentry *dentry = file->f_path.dentry;  in sdcardfs_fsync()
317 	err = __generic_file_fsync(file, start, end, datasync);  in sdcardfs_fsync()
321 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_fsync()
329 static int sdcardfs_fasync(int fd, struct file *file, int flag)  in sdcardfs_fasync()  argument
332 	struct file *lower_file = NULL;  in sdcardfs_fasync()
334 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_fasync()
347 static loff_t sdcardfs_file_llseek(struct file *file, loff_t offset, int whence)  in sdcardfs_file_llseek()  argument
350 	struct file *lower_file;  in sdcardfs_file_llseek()
352 	err = generic_file_llseek(file, offset, whence);  in sdcardfs_file_llseek()
356 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_file_llseek()
369 	struct file *file = iocb->ki_filp, *lower_file;  in sdcardfs_read_iter()  local
371 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_read_iter()
380 	iocb->ki_filp = file;  in sdcardfs_read_iter()
384 		fsstack_copy_attr_atime(file->f_path.dentry->d_inode,  in sdcardfs_read_iter()
396 	struct file *file = iocb->ki_filp, *lower_file;  in sdcardfs_write_iter()  local
397 	struct inode *inode = file->f_path.dentry->d_inode;  in sdcardfs_write_iter()
399 	lower_file = sdcardfs_lower_file(file);  in sdcardfs_write_iter()
408 	iocb->ki_filp = file;  in sdcardfs_write_iter()