Lines Matching full:file

16     fs::{File, Kiocb},
121     /// The returned pointer will be stored as the private data for the file.
122     fn open(_file: &File, _misc: &MiscDeviceRegistration<Self>) -> Result<Self::Ptr>;
125     fn release(device: Self::Ptr, _file: &File) {
132     /// `file`. The function is a callback that is part of the VMA initializer. The kernel will do
139         _file: &File,
162         _file: &File,
179         _file: &File,
190         _file: &File,
196 /// A vtable for the file operations of a Rust miscdevice.
202     /// `file` and `inode` must be the file and inode for a file that is undergoing initialization.
203     /// The file must be associated with a `MiscDeviceRegistration<T>`.
204     unsafe extern "C" fn open(inode: *mut bindings::inode, raw_file: *mut bindings::file) -> c_int {
205         // SAFETY: The pointers are valid and for a file being opened.
211         // SAFETY: The open call of a file can access the private data.
221         // * This underlying file is valid for (much longer than) the duration of `T::open`.
222         // * There is no active fdget_pos region on the file on this thread.
223         let file = unsafe { File::from_raw_file(raw_file) };
225         let ptr = match T::open(file, misc) {
231         // of this file's private data. All future accesses to the private data is performed by
232         // other fops_* methods in this file, which all correctly cast the private data to the new
235         // SAFETY: The open call of a file can access the private data.
243     /// `file` and `inode` must be the file and inode for a file that is being released. The file
245     unsafe extern "C" fn release(_inode: *mut bindings::inode, file: *mut bindings::file) -> c_int {
246         // SAFETY: The release call of a file owns the private data.
247         let private = unsafe { (*file).private_data };
248         // SAFETY: The release call of a file owns the private data.
252         // * The file is valid for the duration of this call.
253         // * There is no active fdget_pos region on the file on this thread.
254         T::release(ptr, unsafe { File::from_raw_file(file) });
261     /// `kiocb` must be correspond to a valid file that is associated with a
268         // `MiscDeviceRegistration<T>` file.
281     /// `kiocb` must be correspond to a valid file that is associated with a
288         // `MiscDeviceRegistration<T>` file.
301     /// `file` must be a valid file that is associated with a `MiscDeviceRegistration<T>`.
302     /// `vma` must be a vma that is currently being mmap'ed with this file.
304         file: *mut bindings::file,
307         // SAFETY: The mmap call of a file can access the private data.
308         let private = unsafe { (*file).private_data };
316         // * The file is valid for the duration of this call.
317         // * There is no active fdget_pos region on the file on this thread.
318         let file = unsafe { File::from_raw_file(file) };
320         match T::mmap(device, file, area) {
328     /// `file` must be a valid file that is associated with a `MiscDeviceRegistration<T>`.
329     unsafe extern "C" fn ioctl(file: *mut bindings::file, cmd: c_uint, arg: c_ulong) -> c_long {
330         // SAFETY: The ioctl call of a file can access the private data.
331         let private = unsafe { (*file).private_data };
332         // SAFETY: Ioctl calls can borrow the private data of the file.
336         // * The file is valid for the duration of this call.
337         // * There is no active fdget_pos region on the file on this thread.
338         let file = unsafe { File::from_raw_file(file) };
340         match T::ioctl(device, file, cmd, arg) {
348     /// `file` must be a valid file that is associated with a `MiscDeviceRegistration<T>`.
351         file: *mut bindings::file,
355         // SAFETY: The compat ioctl call of a file can access the private data.
356         let private = unsafe { (*file).private_data };
357         // SAFETY: Ioctl calls can borrow the private data of the file.
361         // * The file is valid for the duration of this call.
362         // * There is no active fdget_pos region on the file on this thread.
363         let file = unsafe { File::from_raw_file(file) };
365         match T::compat_ioctl(device, file, cmd, arg) {
373     /// - `file` must be a valid file that is associated with a `MiscDeviceRegistration<T>`.
375     unsafe extern "C" fn show_fdinfo(seq_file: *mut bindings::seq_file, file: *mut bindings::file) {
376         // SAFETY: The release call of a file owns the private data.
377         let private = unsafe { (*file).private_data };
378         // SAFETY: Ioctl calls can borrow the private data of the file.
381         // * The file is valid for the duration of this call.
382         // * There is no active fdget_pos region on the file on this thread.
383         let file = unsafe { File::from_raw_file(file) };
388         T::show_fdinfo(device, m, file);