Handle release of parent files

[lttng-modules.git] / ltt-debugfs-abi.c

diff --git a/ltt-debugfs-abi.c b/ltt-debugfs-abi.c
index d08459c0dbabbdd65e3f9aa5088893b9e8495f44..4717b81e14621f43792cbf5df36d7627c7143de0 100644 (file)
--- a/ltt-debugfs-abi.c
+++ b/ltt-debugfs-abi.c
@@ -75,6 +75,7 @@ int lttng_abi_create_session(void)
                ret = PTR_ERR(session_filp);
                goto file_error;
        }
+       session->file = session_filp;
        fd_install(session_fd, session_filp);
        return session_fd;
 
@@ -153,6 +154,7 @@ int lttng_abi_create_channel(struct file *session_filp,
                ret = -ENOMEM;
                goto chan_error;
        }
+       channel->file = chan_filp;
        chan_filp->private_data = chan;
        fd_install(chan_fd, chan_filp);
        /* The channel created holds a reference on the session */
@@ -363,6 +365,14 @@ unsigned int lttng_channel_poll(struct file *filp, poll_table *wait)
 
 }
 
+static
+int lttng_channel_release(struct inode *inode, struct file *file)
+{
+       struct ltt_channel *channel = file->private_data;
+       fput(channel->session->file);
+       return 0;
+}
+
 static const struct file_operations lttng_channel_fops = {
        .release = lttng_channel_release,
        .poll = lttng_channel_poll,
@@ -372,6 +382,18 @@ static const struct file_operations lttng_channel_fops = {
 #endif
 }
 
+static
+int lttng_event_release(struct inode *inode, struct file *file)
+{
+       struct ltt_event *event = file->private_data;
+       fput(event->chan->file);
+       return 0;
+}
+
+static const struct file_operations lttng_event_fops = {
+       .release = lttng_event_release,
+}
+
 static int __init ltt_debugfs_abi_init(void)
 {
        int ret = 0;