u64 h;
switch (cmd) {
- case F_GET_FILE_RW_HINT:
- h = file_write_hint(file);
- if (copy_to_user(argp, &h, sizeof(*argp)))
- return -EFAULT;
- return 0;
- case F_SET_FILE_RW_HINT:
- if (copy_from_user(&h, argp, sizeof(h)))
- return -EFAULT;
- hint = (enum rw_hint) h;
- if (!rw_hint_valid(hint))
- return -EINVAL;
-
- spin_lock(&file->f_lock);
- file->f_write_hint = hint;
- spin_unlock(&file->f_lock);
- return 0;
case F_GET_RW_HINT:
h = inode->i_write_hint;
if (copy_to_user(argp, &h, sizeof(*argp)))
break;
case F_GET_RW_HINT:
case F_SET_RW_HINT:
- case F_GET_FILE_RW_HINT:
- case F_SET_FILE_RW_HINT:
err = fcntl_rw_hint(filp, cmd, arg);
break;
default:
likely(f->f_op->write || f->f_op->write_iter))
f->f_mode |= FMODE_CAN_WRITE;
- f->f_write_hint = WRITE_LIFE_NOT_SET;
f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping);
* Must not be taken from IRQ context.
*/
spinlock_t f_lock;
- enum rw_hint f_write_hint;
atomic_long_t f_count;
unsigned int f_flags;
fmode_t f_mode;
!gid_valid(i_gid_into_mnt(mnt_userns, inode));
}
-static inline enum rw_hint file_write_hint(struct file *file)
-{
- if (file->f_write_hint != WRITE_LIFE_NOT_SET)
- return file->f_write_hint;
-
- return file_inode(file)->i_write_hint;
-}
-
static inline int iocb_flags(struct file *file);
static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)