Calculate context length outside of retry loop

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

diff --git a/lib/ringbuffer/config.h b/lib/ringbuffer/config.h
index 63189b950faa68fa4e5e348c41f1aba55dcdc098..05985197ff930ee3b6a889f36abbbc5f6599aa06 100644 (file)
--- a/lib/ringbuffer/config.h
+++ b/lib/ringbuffer/config.h
@@ -48,7 +48,8 @@ struct lib_ring_buffer_client_cb {
        size_t (*record_header_size) (const struct lib_ring_buffer_config *config,
                                      struct channel *chan, size_t offset,
                                      size_t *pre_header_padding,
-                                     struct lib_ring_buffer_ctx *ctx);
+                                     struct lib_ring_buffer_ctx *ctx,
+                                     void *client_ctx);
 
        /* Slow path only, at subbuffer switch */
        size_t (*subbuffer_header_size) (void);
@@ -200,6 +201,8 @@ struct lib_ring_buffer_ctx {
                                         */
        u64 tsc;                        /* time-stamp counter value */
        unsigned int rflags;            /* reservation flags */
+       /* Cache backend pages pointer chasing. */
+       struct lib_ring_buffer_backend_pages *backend_pages;
 };
 
 /**
@@ -223,6 +226,7 @@ void lib_ring_buffer_ctx_init(struct lib_ring_buffer_ctx *ctx,
        ctx->largest_align = largest_align;
        ctx->cpu = cpu;
        ctx->rflags = 0;
+       ctx->backend_pages = NULL;
 }
 
 /*