How does this patch look?
Do you have a test program you're using to check SIGIO-based event
handling? If so can you post it?
Thanks,
Roland
--- infiniband/core/uverbs.h (revision 2815)
+++ infiniband/core/uverbs.h (working copy)
@@ -62,6 +62,7 @@ struct ib_uverbs_event_file {
int fd;
int is_async;
wait_queue_head_t poll_wait;
+ struct fasync_struct *async_queue;
struct list_head event_list;
};
--- infiniband/core/uverbs_main.c (revision 2815)
+++ infiniband/core/uverbs_main.c (working copy)
@@ -258,11 +258,19 @@ static void ib_uverbs_event_release(stru
spin_unlock_irq(&file->lock);
}
+static int ib_uverbs_event_fasync(int fd, struct file *filp, int on)
+{
+ struct ib_uverbs_event_file *file = filp->private_data;
+
+ return fasync_helper(fd, filp, on, &file->async_queue);
+}
+
static int ib_uverbs_event_close(struct inode *inode, struct file *filp)
{
struct ib_uverbs_event_file *file = filp->private_data;
ib_uverbs_event_release(file);
+ ib_uverbs_event_fasync(-1, filp, 0);
kref_put(&file->uverbs_file->ref, ib_uverbs_release_file);
return 0;
@@ -277,7 +285,8 @@ static struct file_operations uverbs_eve
*/
.read = ib_uverbs_event_read,
.poll = ib_uverbs_event_poll,
- .release = ib_uverbs_event_close
+ .release = ib_uverbs_event_close,
+ .fasync = ib_uverbs_event_fasync
};
void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context)
@@ -297,6 +306,7 @@ void ib_uverbs_comp_handler(struct ib_cq
spin_unlock_irqrestore(&file->comp_file[0].lock, flags);
wake_up_interruptible(&file->comp_file[0].poll_wait);
+ kill_fasync(&file->comp_file[0].async_queue, SIGIO, POLL_IN);
}
static void ib_uverbs_async_handler(struct ib_uverbs_file *file,
@@ -317,6 +327,7 @@ static void ib_uverbs_async_handler(stru
spin_unlock_irqrestore(&file->async_file.lock, flags);
wake_up_interruptible(&file->async_file.poll_wait);
+ kill_fasync(&file->async_file.async_queue, SIGIO, POLL_IN);
}
void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr)
@@ -351,6 +362,7 @@ static int ib_uverbs_event_init(struct i
INIT_LIST_HEAD(&file->event_list);
init_waitqueue_head(&file->poll_wait);
file->uverbs_file = uverbs_file;
+ file->async_queue = NULL;
file->fd = get_unused_fd();
if (file->fd < 0)
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