Metadata cache and multiple metadata channels

[lttng-modules.git] / lib / ringbuffer / vfs.h

diff --git a/lib/ringbuffer/vfs.h b/lib/ringbuffer/vfs.h
index 625f9c91d932c0833c2c45ac771b69b16ded3d0e..ea317a1eaa4854642393ad9173ab07c223e0a148 100644 (file)
--- a/lib/ringbuffer/vfs.h
+++ b/lib/ringbuffer/vfs.h
@@ -37,21 +37,37 @@ extern const struct file_operations lib_ring_buffer_file_operations;
  * Internal file operations.
  */
 
-int lib_ring_buffer_open(struct inode *inode, struct file *file);
-int lib_ring_buffer_release(struct inode *inode, struct file *file);
-unsigned int lib_ring_buffer_poll(struct file *filp, poll_table *wait);
+struct lib_ring_buffer;
+
+int lib_ring_buffer_open(struct inode *inode, struct file *file,
+               struct lib_ring_buffer *buf);
+int lib_ring_buffer_release(struct inode *inode, struct file *file,
+               struct lib_ring_buffer *buf);
+unsigned int lib_ring_buffer_poll(struct file *filp, poll_table *wait,
+               struct lib_ring_buffer *buf);
 ssize_t lib_ring_buffer_splice_read(struct file *in, loff_t *ppos,
-                                   struct pipe_inode_info *pipe, size_t len,
-                                   unsigned int flags);
-int lib_ring_buffer_mmap(struct file *filp, struct vm_area_struct *vma);
+               struct pipe_inode_info *pipe, size_t len,
+               unsigned int flags, struct lib_ring_buffer *buf);
+int lib_ring_buffer_mmap(struct file *filp, struct vm_area_struct *vma,
+               struct lib_ring_buffer *buf);
 
 /* Ring Buffer ioctl() and ioctl numbers */
-long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd,
+               unsigned long arg, struct lib_ring_buffer *buf);
 #ifdef CONFIG_COMPAT
 long lib_ring_buffer_compat_ioctl(struct file *filp, unsigned int cmd,
-                                 unsigned long arg);
+               unsigned long arg, struct lib_ring_buffer *buf);
 #endif
 
+ssize_t vfs_lib_ring_buffer_file_splice_read(struct file *in, loff_t *ppos,
+               struct pipe_inode_info *pipe, size_t len, unsigned int flags);
+loff_t vfs_lib_ring_buffer_no_llseek(struct file *file, loff_t offset,
+               int origin);
+int vfs_lib_ring_buffer_mmap(struct file *filp, struct vm_area_struct *vma);
+ssize_t vfs_lib_ring_buffer_splice_read(struct file *in, loff_t *ppos,
+               struct pipe_inode_info *pipe, size_t len,
+               unsigned int flags);
+
 /*
  * Use RING_BUFFER_GET_NEXT_SUBBUF / RING_BUFFER_PUT_NEXT_SUBBUF to read and
  * consume sub-buffers sequentially.