Fix: update writeback instrumentation for kernel 4.14

[lttng-modules.git] / lttng-context.c

diff --git a/lttng-context.c b/lttng-context.c
index 1121f6efd8d05066b59efdbbe08c8b1e4cb8ae21..544e95f836f6cf3ab90119adae77f32608d200b5 100644 (file)
--- a/lttng-context.c
+++ b/lttng-context.c
@@ -24,9 +24,9 @@
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include "wrapper/vmalloc.h"   /* for wrapper_vmalloc_sync_all() */
-#include "lttng-events.h"
-#include "lttng-tracer.h"
+#include <wrapper/vmalloc.h>   /* for wrapper_vmalloc_sync_all() */
+#include <lttng-events.h>
+#include <lttng-tracer.h>
 
 /*
  * The filter implementation requires that two consecutive "get" for the
@@ -95,12 +95,12 @@ struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx_p)
                struct lttng_ctx_field *new_fields;
 
                ctx->allocated_fields = max_t(size_t, 1, 2 * ctx->allocated_fields);
-               new_fields = kzalloc(ctx->allocated_fields * sizeof(struct lttng_ctx_field), GFP_KERNEL);
+               new_fields = lttng_kvzalloc(ctx->allocated_fields * sizeof(struct lttng_ctx_field), GFP_KERNEL);
                if (!new_fields)
                        return NULL;
                if (ctx->fields)
                        memcpy(new_fields, ctx->fields, sizeof(*ctx->fields) * ctx->nr_fields);
-               kfree(ctx->fields);
+               lttng_kvfree(ctx->fields);
                ctx->fields = new_fields;
        }
        field = &ctx->fields[ctx->nr_fields];
@@ -141,6 +141,10 @@ void lttng_context_update(struct lttng_ctx *ctx)
 
                        case atype_array:
                        case atype_sequence:
+                       case atype_struct:
+                       case atype_array_compound:
+                       case atype_sequence_compound:
+                       case atype_variant:
                        default:
                                WARN_ON_ONCE(1);
                                break;
@@ -160,6 +164,10 @@ void lttng_context_update(struct lttng_ctx *ctx)
                        case atype_string:
                        case atype_array:
                        case atype_sequence:
+                       case atype_struct:
+                       case atype_array_compound:
+                       case atype_sequence_compound:
+                       case atype_variant:
                        default:
                                WARN_ON_ONCE(1);
                                break;
@@ -178,6 +186,10 @@ void lttng_context_update(struct lttng_ctx *ctx)
 
                        case atype_array:
                        case atype_sequence:
+                       case atype_struct:
+                       case atype_array_compound:
+                       case atype_sequence_compound:
+                       case atype_variant:
                        default:
                                WARN_ON_ONCE(1);
                                break;
@@ -187,6 +199,12 @@ void lttng_context_update(struct lttng_ctx *ctx)
                case atype_string:
                        break;
 
+               case atype_struct:
+               case atype_array_compound:
+               case atype_sequence_compound:
+               case atype_variant:
+                       break;
+
                case atype_enum:
                default:
                        WARN_ON_ONCE(1);
@@ -222,7 +240,7 @@ void lttng_destroy_context(struct lttng_ctx *ctx)
                if (ctx->fields[i].destroy)
                        ctx->fields[i].destroy(&ctx->fields[i]);
        }
-       kfree(ctx->fields);
+       lttng_kvfree(ctx->fields);
        kfree(ctx);
 }
 
@@ -282,18 +300,14 @@ int lttng_context_init(void)
        if (ret) {
                printk(KERN_WARNING "Cannot add context lttng_add_need_reschedule_to_ctx");
        }
-#if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT)
        ret = lttng_add_preemptible_to_ctx(&lttng_static_ctx);
-       if (ret != -ENOSYS) {
+       if (ret && ret != -ENOSYS) {
                printk(KERN_WARNING "Cannot add context lttng_add_preemptible_to_ctx");
        }
-#endif
-#ifdef CONFIG_PREEMPT_RT_FULL
        ret = lttng_add_migratable_to_ctx(&lttng_static_ctx);
-       if (ret != -ENOSYS) {
+       if (ret && ret != -ENOSYS) {
                printk(KERN_WARNING "Cannot add context lttng_add_migratable_to_ctx");
        }
-#endif
        /* TODO: perf counters for filtering */
        return 0;
 }