diff options
Diffstat (limited to 'runtime/relayfs/linux/relayfs_fs.h')
| -rw-r--r-- | runtime/relayfs/linux/relayfs_fs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/runtime/relayfs/linux/relayfs_fs.h b/runtime/relayfs/linux/relayfs_fs.h index 1f697c3b..2d270a3f 100644 --- a/runtime/relayfs/linux/relayfs_fs.h +++ b/runtime/relayfs/linux/relayfs_fs.h @@ -59,6 +59,7 @@ struct rchan int overwrite; /* overwrite buffer when full? */ struct rchan_callbacks *cb; /* client callbacks */ struct kref kref; /* channel refcount */ + void *private_data; /* for user-defined data */ struct rchan_buf *buf[NR_CPUS]; /* per-cpu channel buffers */ }; @@ -88,6 +89,9 @@ struct rchan_callbacks * @prev_subbuf_idx: the previous sub-buffer's index * @prev_subbuf: the start of the previous sub-buffer * + * The client should return the number of bytes it reserves at + * the beginning of the sub-buffer, 0 if none. + * * NOTE: subbuf_start will also be invoked when the buffer is * created, so that the first sub-buffer can be initialized * if necessary. In this case, prev_subbuf will be NULL. |