#include <ringbuffer/vfs.h>
#include <ringbuffer/backend.h>
#include <ringbuffer/frontend.h>
+#include <wrapper/compiler_attributes.h>
#include <wrapper/poll.h>
#include <wrapper/file.h>
#include <wrapper/kref.h>
return ret;
}
+static
void event_notifier_send_notification_work_wakeup(struct irq_work *entry)
{
struct lttng_event_notifier_group *event_notifier_group =
if (validate_zeroed_padding(local_counter_read.padding,
sizeof(local_counter_read.padding)))
return -EINVAL;
+ if (local_counter_read.index.number_dimensions > LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX)
+ return -EINVAL;
/* Cast all indexes into size_t. */
for (i = 0; i < local_counter_read.index.number_dimensions; i++)
if (validate_zeroed_padding(local_counter_aggregate.padding,
sizeof(local_counter_aggregate.padding)))
return -EINVAL;
+ if (local_counter_aggregate.index.number_dimensions > LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX)
+ return -EINVAL;
/* Cast all indexes into size_t. */
for (i = 0; i < local_counter_aggregate.index.number_dimensions; i++)
if (validate_zeroed_padding(local_counter_clear.padding,
sizeof(local_counter_clear.padding)))
return -EINVAL;
+ if (local_counter_clear.index.number_dimensions > LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX)
+ return -EINVAL;
/* Cast all indexes into size_t. */
for (i = 0; i < local_counter_clear.index.number_dimensions; i++)
return lttng_kernel_counter_clear(counter, indexes);
}
default:
- WARN_ON_ONCE(1);
return -ENOSYS;
}
}
{
struct lttng_event_notifier_group *event_notifier_group = filp->private_data;
struct lttng_kernel_ring_buffer_channel *chan = event_notifier_group->chan;
- struct lib_ring_buffer *buf = event_notifier_group->buf;
+ struct lttng_kernel_ring_buffer *buf = event_notifier_group->buf;
ssize_t read_count = 0, len;
size_t read_offset;
/* Finish copy of previous record */
if (*ppos != 0) {
- if (read_count < count) {
+ if (count != 0) {
len = chan->iter.len_left;
read_offset = *ppos;
goto skip_get_next;
chan->iter.len_left = 0;
put_record:
- lib_ring_buffer_put_current_record(buf);
+ if (*ppos == 0)
+ lib_ring_buffer_put_current_record(buf);
return read_count;
}
unsigned int mask = 0;
struct lttng_event_notifier_group *event_notifier_group = filp->private_data;
struct lttng_kernel_ring_buffer_channel *chan = event_notifier_group->chan;
- struct lib_ring_buffer *buf = event_notifier_group->buf;
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ struct lttng_kernel_ring_buffer *buf = event_notifier_group->buf;
+ const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
int finalized, disabled;
unsigned long consumed, offset;
size_t subbuffer_header_size = config->cb.subbuffer_header_size();
static int lttng_event_notifier_group_notif_open(struct inode *inode, struct file *file)
{
struct lttng_event_notifier_group *event_notifier_group = inode->i_private;
- struct lib_ring_buffer *buf = event_notifier_group->buf;
+ struct lttng_kernel_ring_buffer *buf = event_notifier_group->buf;
file->private_data = event_notifier_group;
return lib_ring_buffer_open(inode, file, buf);
static int lttng_event_notifier_group_notif_release(struct inode *inode, struct file *file)
{
struct lttng_event_notifier_group *event_notifier_group = file->private_data;
- struct lib_ring_buffer *buf = event_notifier_group->buf;
+ struct lttng_kernel_ring_buffer *buf = event_notifier_group->buf;
int ret;
ret = lib_ring_buffer_release(inode, file, buf);
poll_table *wait)
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
int finalized;
unsigned int mask = 0;
{
int ret;
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
unsigned int rb_cmd;
bool coherent;
case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF:
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
ret = lttng_metadata_output_channel(stream, chan, NULL);
*/
return -ENOSYS;
}
- case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH_EMPTY: /* Fall-through. */
+ case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH_EMPTY:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH:
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
/*
case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
ret = lttng_metadata_output_channel(stream, chan, &coherent);
{
int ret;
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
unsigned int rb_cmd;
bool coherent;
case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF:
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
ret = lttng_metadata_output_channel(stream, chan, NULL);
*/
return -ENOSYS;
}
- case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH_EMPTY: /* Fall-through. */
+ case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH_EMPTY:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH:
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
/*
case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
ret = lttng_metadata_output_channel(stream, chan, &coherent);
int lttng_metadata_ring_buffer_open(struct inode *inode, struct file *file)
{
struct lttng_metadata_stream *stream = inode->i_private;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
file->private_data = buf;
/*
int lttng_metadata_ring_buffer_release(struct inode *inode, struct file *file)
{
struct lttng_metadata_stream *stream = file->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
mutex_lock(&stream->metadata_cache->lock);
list_del(&stream->list);
unsigned int flags)
{
struct lttng_metadata_stream *stream = in->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
return lib_ring_buffer_splice_read(in, ppos, pipe, len,
flags, buf);
struct vm_area_struct *vma)
{
struct lttng_metadata_stream *stream = filp->private_data;
- struct lib_ring_buffer *buf = stream->priv;
+ struct lttng_kernel_ring_buffer *buf = stream->priv;
return lib_ring_buffer_mmap(filp, vma, buf);
}
int lttng_abi_open_stream(struct file *channel_file)
{
struct lttng_kernel_channel_buffer *channel = channel_file->private_data;
- struct lib_ring_buffer *buf;
+ struct lttng_kernel_ring_buffer *buf;
int ret;
void *stream_priv;
{
struct lttng_kernel_channel_buffer *channel = channel_file->private_data;
struct lttng_kernel_session *session = channel->parent.session;
- struct lib_ring_buffer *buf;
+ struct lttng_kernel_ring_buffer *buf;
int ret;
struct lttng_metadata_stream *metadata_stream;
void *stream_priv;
{
struct lttng_event_notifier_group *event_notifier_group = notif_file->private_data;
struct lttng_kernel_ring_buffer_channel *chan = event_notifier_group->chan;
- struct lib_ring_buffer *buf;
+ struct lttng_kernel_ring_buffer *buf;
int ret;
void *stream_priv;
switch (event_param->instrumentation) {
case LTTNG_KERNEL_ABI_SYSCALL:
switch (event_param->u.syscall.entryexit) {
- case LTTNG_KERNEL_ABI_SYSCALL_ENTRY: /* Fall-through */
- case LTTNG_KERNEL_ABI_SYSCALL_EXIT: /* Fall-through */
+ case LTTNG_KERNEL_ABI_SYSCALL_ENTRY:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_SYSCALL_EXIT:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT:
break;
default:
switch (event_param->u.kretprobe.entryexit) {
case LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT:
break;
- case LTTNG_KERNEL_ABI_SYSCALL_ENTRY: /* Fall-through */
- case LTTNG_KERNEL_ABI_SYSCALL_EXIT: /* Fall-through */
+ case LTTNG_KERNEL_ABI_SYSCALL_ENTRY:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_SYSCALL_EXIT:
+ lttng_fallthrough;
default:
return -EINVAL;
}
break;
- case LTTNG_KERNEL_ABI_TRACEPOINT: /* Fall-through */
- case LTTNG_KERNEL_ABI_KPROBE: /* Fall-through */
+ case LTTNG_KERNEL_ABI_TRACEPOINT:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_KPROBE:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_UPROBE:
break;
- case LTTNG_KERNEL_ABI_FUNCTION: /* Fall-through */
- case LTTNG_KERNEL_ABI_NOOP: /* Fall-through */
+ case LTTNG_KERNEL_ABI_FUNCTION:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_NOOP:
+ lttng_fallthrough;
default:
return -EINVAL;
}
}
switch (event_param->instrumentation) {
- case LTTNG_KERNEL_ABI_TRACEPOINT: /* Fall-through */
+ case LTTNG_KERNEL_ABI_TRACEPOINT:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_SYSCALL:
fops = <tng_event_recorder_enabler_fops;
break;
- case LTTNG_KERNEL_ABI_KPROBE: /* Fall-through */
- case LTTNG_KERNEL_ABI_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_ABI_KPROBE:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_KRETPROBE:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_UPROBE:
fops = <tng_event_recorder_event_fops;
break;
- case LTTNG_KERNEL_ABI_FUNCTION: /* Fall-through */
- case LTTNG_KERNEL_ABI_NOOP: /* Fall-through */
+ case LTTNG_KERNEL_ABI_FUNCTION:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_NOOP:
+ lttng_fallthrough;
default:
return -EINVAL;
}
goto event_error;
switch (event_param->instrumentation) {
- case LTTNG_KERNEL_ABI_TRACEPOINT: /* Fall-through */
+ case LTTNG_KERNEL_ABI_TRACEPOINT:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_SYSCALL:
{
struct lttng_event_enabler *event_enabler;
break;
}
- case LTTNG_KERNEL_ABI_KPROBE: /* Fall-through */
- case LTTNG_KERNEL_ABI_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_ABI_KPROBE:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_KRETPROBE:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_UPROBE:
{
struct lttng_kernel_event_recorder *event;
break;
}
- case LTTNG_KERNEL_ABI_FUNCTION: /* Fall-through */
- case LTTNG_KERNEL_ABI_NOOP: /* Fall-through */
+ case LTTNG_KERNEL_ABI_FUNCTION:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_NOOP:
+ lttng_fallthrough;
default:
ret = -EINVAL;
goto event_error;
}
switch (event_notifier_param->event.instrumentation) {
- case LTTNG_KERNEL_ABI_TRACEPOINT: /* Fall-through */
+ case LTTNG_KERNEL_ABI_TRACEPOINT:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_SYSCALL:
fops = <tng_event_notifier_enabler_fops;
break;
- case LTTNG_KERNEL_ABI_KPROBE: /* Fall-through */
- case LTTNG_KERNEL_ABI_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_ABI_KPROBE:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_KRETPROBE:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_UPROBE:
fops = <tng_event_notifier_event_fops;
break;
- case LTTNG_KERNEL_ABI_FUNCTION: /* Fall-through */
- case LTTNG_KERNEL_ABI_NOOP: /* Fall-through */
+ case LTTNG_KERNEL_ABI_FUNCTION:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_NOOP:
+ lttng_fallthrough;
default:
ret = -EINVAL;
goto inval_instr;
goto event_notifier_error;
switch (event_notifier_param->event.instrumentation) {
- case LTTNG_KERNEL_ABI_TRACEPOINT: /* Fall-through */
+ case LTTNG_KERNEL_ABI_TRACEPOINT:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_SYSCALL:
{
struct lttng_event_notifier_enabler *enabler;
break;
}
- case LTTNG_KERNEL_ABI_KPROBE: /* Fall-through */
- case LTTNG_KERNEL_ABI_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_ABI_KPROBE:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_KRETPROBE:
+ lttng_fallthrough;
case LTTNG_KERNEL_ABI_UPROBE:
{
struct lttng_kernel_event_notifier *event_notifier;
break;
}
- case LTTNG_KERNEL_ABI_FUNCTION: /* Fall-through */
- case LTTNG_KERNEL_ABI_NOOP: /* Fall-through */
+ case LTTNG_KERNEL_ABI_FUNCTION:
+ lttng_fallthrough;
+ case LTTNG_KERNEL_ABI_NOOP:
+ lttng_fallthrough;
default:
ret = -EINVAL;
goto event_notifier_error;
* @file: the file
* @wait: poll table
*/
+static
unsigned int lttng_channel_poll(struct file *file, poll_table *wait)
{
struct lttng_kernel_channel_buffer *channel = file->private_data;
static long lttng_stream_ring_buffer_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
- struct lib_ring_buffer *buf = filp->private_data;
+ struct lttng_kernel_ring_buffer *buf = filp->private_data;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
const struct lttng_kernel_channel_buffer_ops *ops = chan->backend.priv_ops;
int ret;
static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
- struct lib_ring_buffer *buf = filp->private_data;
+ struct lttng_kernel_ring_buffer *buf = filp->private_data;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
const struct lttng_kernel_channel_buffer_ops *ops = chan->backend.priv_ops;
int ret;