ABI update

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

diff --git a/ltt-debugfs-abi.c b/ltt-debugfs-abi.c
index 4717b81e14621f43792cbf5df36d7627c7143de0..e76c7169b09d3cc83db863ee3c9916a08774e594 100644 (file)
--- a/ltt-debugfs-abi.c
+++ b/ltt-debugfs-abi.c
@@ -57,7 +57,7 @@ static
 int lttng_abi_create_session(void)
 {
        struct ltt_session *session;
-       struct file *session_filp;
+       struct file *session_file;
        int session_fd;
 
        session = ltt_session_create();
@@ -68,15 +68,15 @@ int lttng_abi_create_session(void)
                ret = session_fd;
                goto fd_error;
        }
-       session_filp = anon_inode_getfile("[lttng_session]",
+       session_file = anon_inode_getfile("[lttng_session]",
                                          &lttng_session_fops,
                                          session, O_RDWR);
-       if (IS_ERR(session_filp)) {
-               ret = PTR_ERR(session_filp);
+       if (IS_ERR(session_file)) {
+               ret = PTR_ERR(session_file);
                goto file_error;
        }
-       session->file = session_filp;
-       fd_install(session_fd, session_filp);
+       session->file = session_file;
+       fd_install(session_fd, session_file);
        return session_fd;
 
 file_error:
@@ -89,7 +89,7 @@ fd_error:
 /**
  *     lttng_ioctl - lttng syscall through ioctl
  *
- *     @filp: the file
+ *     @file: the file
  *     @cmd: the command
  *     @arg: command arg
  *
@@ -100,7 +100,7 @@ fd_error:
  * The returned session will be deleted when its file descriptor is closed.
  */
 static
-long lttng_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        switch (cmd) {
        case LTTNG_SESSION:
@@ -117,12 +117,12 @@ static const struct file_operations lttng_fops = {
 #endif
 }
 
-int lttng_abi_create_channel(struct file *session_filp,
+int lttng_abi_create_channel(struct file *session_file,
                             struct lttng_channel __user *uchan_param)
 {
-       struct ltt_session *session = session_filp->private_data;
+       struct ltt_session *session = session_file->private_data;
        struct ltt_channel *chan;
-       struct file *chan_filp;
+       struct file *chan_file;
        struct lttng_channel chan_param;
        int chan_fd;
        int ret = 0;
@@ -134,11 +134,11 @@ int lttng_abi_create_channel(struct file *session_filp,
                ret = chan_fd;
                goto fd_error;
        }
-       chan_filp = anon_inode_getfile("[lttng_channel]",
+       chan_file = anon_inode_getfile("[lttng_channel]",
                                       &lttng_channel_fops,
                                       NULL, O_RDWR);
-       if (IS_ERR(chan_filp)) {
-               ret = PTR_ERR(chan_filp);
+       if (IS_ERR(chan_file)) {
+               ret = PTR_ERR(chan_file);
                goto file_error;
        }
        /*
@@ -154,16 +154,16 @@ 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);
+       channel->file = chan_file;
+       chan_file->private_data = chan;
+       fd_install(chan_fd, chan_file);
        /* The channel created holds a reference on the session */
-       atomic_inc(&session_filp->f_count);
+       atomic_inc(&session_file->f_count);
 
        return chan_fd;
 
 chan_error:
-       fput(chan_filp);
+       fput(chan_file);
 file_error:
        put_unused_fd(chan_fd);
 fd_error:
@@ -173,7 +173,7 @@ fd_error:
 /**
  *     lttng_session_ioctl - lttng session fd ioctl
  *
- *     @filp: the file
+ *     @file: the file
  *     @cmd: the command
  *     @arg: command arg
  *
@@ -184,11 +184,19 @@ fd_error:
  * The returned channel will be deleted when its file descriptor is closed.
  */
 static
-long lttng_session_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+long lttng_session_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
+       struct ltt_session *session = file->private_data;
+
        switch (cmd) {
        case LTTNG_CHANNEL:
-               return lttng_abi_create_channel(filp, (struct lttng_channel __user *)arg);
+               return lttng_abi_create_channel(file, (struct lttng_channel __user *)arg);
+       case LTTNG_SESSION_START:
+               return ltt_session_start(session);
+       case LTTNG_SESSION_STOP:
+               return ltt_session_stop(session);
+       case LTTNG_SESSION_FINALIZE:
+               return ltt_session_finalize(session);
        default:
                return -ENOIOCTLCMD;
        }
@@ -218,9 +226,9 @@ static const struct file_operations lttng_session_fops = {
 }
 
 static
-int lttng_abi_open_stream(struct file *channel_filp)
+int lttng_abi_open_stream(struct file *channel_file)
 {
-       struct ltt_channel *channel = channel_filp->private_data;
+       struct ltt_channel *channel = channel_file->private_data;
        struct lib_ring_buffer *buf;
        int stream_fd, ret;
 
@@ -233,16 +241,16 @@ int lttng_abi_open_stream(struct file *channel_filp)
                ret = stream_fd;
                goto fd_error;
        }
-       stream_filp = anon_inode_getfile("[lttng_stream]",
+       stream_file = anon_inode_getfile("[lttng_stream]",
                                         &lib_ring_buffer_file_operations,
                                         buf, O_RDWR);
-       if (IS_ERR(stream_filp)) {
-               ret = PTR_ERR(stream_filp);
+       if (IS_ERR(stream_file)) {
+               ret = PTR_ERR(stream_file);
                goto file_error;
        }
-       fd_install(stream_fd, stream_filp);
+       fd_install(stream_fd, stream_file);
        /* The stream holds a reference on the channel */
-       atomic_inc(&channel_filp->f_count);
+       atomic_inc(&channel_file->f_count);
        return stream_fd;
 
 file_error:
@@ -253,10 +261,10 @@ fd_error:
 }
 
 static
-int lttng_abi_create_event(struct file *channel_filp,
+int lttng_abi_create_event(struct file *channel_file,
                           struct lttng_event __user *uevent_param)
 {
-       struct ltt_channel *channel = channel_filp->private_data;
+       struct ltt_channel *channel = channel_file->private_data;
        struct ltt_event *event;
        char *event_name;
        struct lttng_event event_param;
@@ -277,11 +285,11 @@ int lttng_abi_create_event(struct file *channel_filp,
                ret = event_fd;
                goto fd_error;
        }
-       event_filp = anon_inode_getfile("[lttng_event]",
+       event_file = anon_inode_getfile("[lttng_event]",
                                        &lttng_event_fops, /* TODO: filter */
                                        NULL, O_RDWR);
-       if (IS_ERR(event_filp)) {
-               ret = PTR_ERR(event_filp);
+       if (IS_ERR(event_file)) {
+               ret = PTR_ERR(event_file);
                goto file_error;
        }
        /*
@@ -293,15 +301,15 @@ int lttng_abi_create_event(struct file *channel_filp,
                goto event_error;
                ret = -EEXIST;
        }
-       event_filp->private_data = event;
-       fd_install(event_fd, event_filp);
+       event_file->private_data = event;
+       fd_install(event_fd, event_file);
        /* The event holds a reference on the channel */
-       atomic_inc(&channel_filp->f_count);
+       atomic_inc(&channel_file->f_count);
        kfree(event_name);
        return event_fd;
 
 event_error:
-       fput(event_filp);
+       fput(event_file);
 file_error:
        put_unused_fd(event_fd);
 fd_error:
@@ -313,7 +321,7 @@ name_error:
 /**
  *     lttng_channel_ioctl - lttng syscall through ioctl
  *
- *     @filp: the file
+ *     @file: the file
  *     @cmd: the command
  *     @arg: command arg
  *
@@ -328,13 +336,13 @@ name_error:
  * Channel and event file descriptors also hold a reference on the session.
  */
 static
-long lttng_channel_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+long lttng_channel_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        switch (cmd) {
        case LTTNG_STREAM:
-               return lttng_abi_open_stream(filp);
+               return lttng_abi_open_stream(file);
        case LTTNG_EVENT:
-               return lttng_abi_create_event(filp, (struct lttng_event __user *)arg);
+               return lttng_abi_create_event(file, (struct lttng_event __user *)arg);
        default:
                return -ENOIOCTLCMD;
        }
@@ -343,17 +351,17 @@ long lttng_channel_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 /**
  *     lttng_channel_poll - lttng stream addition/removal monitoring
  *
- *     @filp: the file
+ *     @file: the file
  *     @wait: poll table
  */
-unsigned int lttng_channel_poll(struct file *filp, poll_table *wait)
+unsigned int lttng_channel_poll(struct file *file, poll_table *wait)
 {
-       struct ltt_channel *channel = filp->private_data;
+       struct ltt_channel *channel = file->private_data;
        unsigned int mask = 0;
 
-       if (filp->f_mode & FMODE_READ) {
+       if (file->f_mode & FMODE_READ) {
                poll_wait_set_exclusive(wait);
-               poll_wait(filp, &channel->notify_wait, wait);
+               poll_wait(file, &channel->notify_wait, wait);
 
                /* TODO: identify when the channel is being finalized. */
                if (finalized)