Displaying 2 results from an estimated 2 matches for "atomic_use".
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atomic_set
2008 Apr 05
11
[PATCH RFC 1/5] vringfd syscall
...ndex. */
+ wmb();
+ vr->used->idx++;
+}
+EXPORT_SYMBOL_GPL(vring_used_buffer_atomic);
+
+void vring_wake(struct vring_info *vr)
+{
+ wake_up(&vr->poll_wait);
+}
+EXPORT_SYMBOL_GPL(vring_wake);
+
+struct vring_info *vring_attach(int fd, const struct vring_ops *ops,
+ void *data, bool atomic_use)
+{
+ struct file *filp;
+ struct vring_info *vr;
+
+ /* Must be a valid fd, and must be one of ours. */
+ filp = fget(fd);
+ if (!filp) {
+ vr = ERR_PTR(-EBADF);
+ goto out;
+ }
+
+ if (filp->f_op != &vring_fops) {
+ vr = ERR_PTR(-EBADF);
+ goto fput;
+ }
+
+ /* Mutex simply protects ag...
2008 Apr 05
11
[PATCH RFC 1/5] vringfd syscall
...ndex. */
+ wmb();
+ vr->used->idx++;
+}
+EXPORT_SYMBOL_GPL(vring_used_buffer_atomic);
+
+void vring_wake(struct vring_info *vr)
+{
+ wake_up(&vr->poll_wait);
+}
+EXPORT_SYMBOL_GPL(vring_wake);
+
+struct vring_info *vring_attach(int fd, const struct vring_ops *ops,
+ void *data, bool atomic_use)
+{
+ struct file *filp;
+ struct vring_info *vr;
+
+ /* Must be a valid fd, and must be one of ours. */
+ filp = fget(fd);
+ if (!filp) {
+ vr = ERR_PTR(-EBADF);
+ goto out;
+ }
+
+ if (filp->f_op != &vring_fops) {
+ vr = ERR_PTR(-EBADF);
+ goto fput;
+ }
+
+ /* Mutex simply protects ag...