8 #include <linux/file.h>
23 int hmdfs_file_open_local(struct inode *inode, struct file *file)  in hmdfs_file_open_local()  argument
26 	struct file *lower_file = NULL;  in hmdfs_file_open_local()
37 	hmdfs_get_lower_path(file->f_path.dentry, &lower_path);  in hmdfs_file_open_local()
38 	lower_file = dentry_open(&lower_path, file->f_flags, cred);  in hmdfs_file_open_local()
45 		file->private_data = gfi;  in hmdfs_file_open_local()
51 int hmdfs_file_release_local(struct inode *inode, struct file *file)  in hmdfs_file_release_local()  argument
53 	struct hmdfs_file_info *gfi = hmdfs_f(file);  in hmdfs_file_release_local()
55 	file->private_data = NULL;  in hmdfs_file_release_local()
61 static void hmdfs_file_accessed(struct file *file)  in hmdfs_file_accessed()  argument
63 	struct file *lower_file = hmdfs_f(file)->lower_file;  in hmdfs_file_accessed()
64 	struct inode *inode = file_inode(file);  in hmdfs_file_accessed()
67 	if (file->f_flags & O_NOATIME)  in hmdfs_file_accessed()
73 ssize_t hmdfs_do_read_iter(struct file *file, struct iov_iter *iter,  in hmdfs_do_read_iter()  argument
77 	struct file *lower_file = hmdfs_f(file)->lower_file;  in hmdfs_do_read_iter()
83 	hmdfs_file_accessed(file);  in hmdfs_do_read_iter()
93 static void hmdfs_file_modified(struct file *file)  in hmdfs_file_modified()  argument
95 	struct inode *inode = file_inode(file);  in hmdfs_file_modified()
96 	struct dentry *dentry = file_dentry(file);  in hmdfs_file_modified()
97 	struct file *lower_file = hmdfs_f(file)->lower_file;  in hmdfs_file_modified()
109 ssize_t hmdfs_do_write_iter(struct file *file, struct iov_iter *iter,  in hmdfs_do_write_iter()  argument
113 	struct file *lower_file = hmdfs_f(file)->lower_file;  in hmdfs_do_write_iter()
114 	struct inode *inode = file_inode(file);  in hmdfs_do_write_iter()
121 	ret = file_remove_privs(file);  in hmdfs_do_write_iter()
129 	hmdfs_file_modified(file);  in hmdfs_do_write_iter()
141 int hmdfs_fsync_local(struct file *file, loff_t start, loff_t end, int datasync)  in hmdfs_fsync_local()  argument
144 	struct file *lower_file = hmdfs_f(file)->lower_file;  in hmdfs_fsync_local()
146 	err = __generic_file_fsync(file, start, end, datasync);  in hmdfs_fsync_local()
155 loff_t hmdfs_file_llseek_local(struct file *file, loff_t offset, int whence)  in hmdfs_file_llseek_local()  argument
158 	struct file *lower_file;  in hmdfs_file_llseek_local()
160 	lower_file = hmdfs_f(file)->lower_file;  in hmdfs_file_llseek_local()
161 	lower_file->f_pos = file->f_pos;  in hmdfs_file_llseek_local()
163 	file->f_pos = lower_file->f_pos;  in hmdfs_file_llseek_local()
168 int hmdfs_file_mmap_local(struct file *file, struct vm_area_struct *vma)  in hmdfs_file_mmap_local()  argument
170 	struct hmdfs_file_info *private_data = file->private_data;  in hmdfs_file_mmap_local()
171 	struct file *realfile = NULL;  in hmdfs_file_mmap_local()
184 	if (WARN_ON(file != vma->vm_file))  in hmdfs_file_mmap_local()
192 		fput(file);  in hmdfs_file_mmap_local()
194 	file_accessed(file);  in hmdfs_file_mmap_local()
212 static int hmdfs_iterate_local(struct file *file, struct dir_context *ctx)  in hmdfs_iterate_local()  argument
216 	struct file *lower_file = hmdfs_f(file)->lower_file;  in hmdfs_iterate_local()
221 	lower_file->f_pos = file->f_pos;  in hmdfs_iterate_local()
223 	file->f_pos = lower_file->f_pos;  in hmdfs_iterate_local()
228 	trace_hmdfs_iterate_local(file->f_path.dentry, start_pos, ctx->pos,  in hmdfs_iterate_local()
233 int hmdfs_dir_open_local(struct inode *inode, struct file *file)  in hmdfs_dir_open_local()  argument
236 	struct file *lower_file = NULL;  in hmdfs_dir_open_local()
237 	struct dentry *dentry = file->f_path.dentry;  in hmdfs_dir_open_local()
251 	lower_file = dentry_open(&lower_path, file->f_flags, cred);  in hmdfs_dir_open_local()
258 		file->private_data = gfi;  in hmdfs_dir_open_local()
267 static int hmdfs_dir_release_local(struct inode *inode, struct file *file)  in hmdfs_dir_release_local()  argument
269 	struct hmdfs_file_info *gfi = hmdfs_f(file);  in hmdfs_dir_release_local()
271 	file->private_data = NULL;  in hmdfs_dir_release_local()
285 static int __hmdfs_ioc_set_share_path(struct file *file,  in __hmdfs_ioc_set_share_path()  argument
288 	struct super_block *sb = file->f_inode->i_sb;  in __hmdfs_ioc_set_share_path()
299 	if (!src.file)  in __hmdfs_ioc_set_share_path()
302 	/* only reg file can be shared */  in __hmdfs_ioc_set_share_path()
303 	if (!S_ISREG(src.file->f_inode->i_mode)) {  in __hmdfs_ioc_set_share_path()
308 	/* share file is not allowed to be shared */  in __hmdfs_ioc_set_share_path()
309 	if (hmdfs_is_share_file(src.file)) {  in __hmdfs_ioc_set_share_path()
314 	dentry = src.file->f_path.dentry;  in __hmdfs_ioc_set_share_path()
320 	dir_path = hmdfs_get_dentry_relative_path(file->f_path.dentry);  in __hmdfs_ioc_set_share_path()
337 		err = insert_share_item(st, &relative_path, src.file, sc->cid);  in __hmdfs_ioc_set_share_path()
344 		update_share_item(item, src.file, sc->cid);  in __hmdfs_ioc_set_share_path()
356 static int hmdfs_ioc_set_share_path(struct file *file, unsigned long arg)  in hmdfs_ioc_set_share_path()  argument
364 	return __hmdfs_ioc_set_share_path(file, &sc);  in hmdfs_ioc_set_share_path()
367 static long hmdfs_dir_ioctl_local(struct file *file, unsigned int cmd,  in hmdfs_dir_ioctl_local()  argument
372 		return hmdfs_ioc_set_share_path(file, arg);  in hmdfs_dir_ioctl_local()