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-rw-r--r--meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch91
1 files changed, 0 insertions, 91 deletions
diff --git a/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch b/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch
deleted file mode 100644
index 71f99b80a3..0000000000
--- a/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch
+++ /dev/null
@@ -1,91 +0,0 @@
-From 49c603ef2dc6969f4454f0d849af00ee24bb7f04 Mon Sep 17 00:00:00 2001
-From: Michael Jeanson <mjeanson@efficios.com>
-Date: Thu, 4 Mar 2021 16:50:12 -0500
-Subject: [PATCH 3/4] fix: mm, tracing: record slab name for kmem_cache_free()
- (v5.12)
-
-See upstream commit:
-
- commit 3544de8ee6e4817278b15fe08658de49abf58954
- Author: Jacob Wen <jian.w.wen@oracle.com>
- Date: Wed Feb 24 12:00:55 2021 -0800
-
- mm, tracing: record slab name for kmem_cache_free()
-
- Currently, a trace record generated by the RCU core is as below.
-
- ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=00000000f3b49a66
-
- It doesn't tell us what the RCU core has freed.
-
- This patch adds the slab name to trace_kmem_cache_free().
- The new format is as follows.
-
- ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=0000000037f79c8d name=dentry
- ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=00000000f78cb7b5 name=sock_inode_cache
- ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=0000000018768985 name=pool_workqueue
- ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=000000006a6cb484 name=radix_tree_node
-
- We can use it to understand what the RCU core is going to free. For
- example, some users maybe interested in when the RCU core starts
- freeing reclaimable slabs like dentry to reduce memory pressure.
-
- Link: https://lkml.kernel.org/r/20201216072804.8838-1-jian.w.wen@oracle.com
-
-Upstream-status: backport
-
-Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
-Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
-Change-Id: I1ee2fc476614cadcc8d3ac5d8feddc7910e1aa3a
----
- instrumentation/events/lttng-module/kmem.h | 27 ++++++++++++++++++++++
- 1 file changed, 27 insertions(+)
-
-diff --git a/instrumentation/events/lttng-module/kmem.h b/instrumentation/events/lttng-module/kmem.h
-index b134620a..d787ea54 100644
---- a/instrumentation/events/lttng-module/kmem.h
-+++ b/instrumentation/events/lttng-module/kmem.h
-@@ -87,6 +87,32 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kmem_alloc_node, kmem_cache_alloc_node,
- TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
- )
-
-+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,12,0))
-+LTTNG_TRACEPOINT_EVENT(kfree,
-+
-+ TP_PROTO(unsigned long call_site, const void *ptr),
-+
-+ TP_ARGS(call_site, ptr),
-+
-+ TP_FIELDS(
-+ ctf_integer_hex(unsigned long, call_site, call_site)
-+ ctf_integer_hex(const void *, ptr, ptr)
-+ )
-+)
-+
-+LTTNG_TRACEPOINT_EVENT(kmem_cache_free,
-+
-+ TP_PROTO(unsigned long call_site, const void *ptr, const char *name),
-+
-+ TP_ARGS(call_site, ptr, name),
-+
-+ TP_FIELDS(
-+ ctf_integer_hex(unsigned long, call_site, call_site)
-+ ctf_integer_hex(const void *, ptr, ptr)
-+ ctf_string(name, name)
-+ )
-+)
-+#else
- LTTNG_TRACEPOINT_EVENT_CLASS(kmem_free,
-
- TP_PROTO(unsigned long call_site, const void *ptr),
-@@ -114,6 +140,7 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kmem_free, kmem_cache_free,
-
- TP_ARGS(call_site, ptr)
- )
-+#endif
-
- #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
- LTTNG_TRACEPOINT_EVENT_MAP(mm_page_free, kmem_mm_page_free,
---
-2.19.1
-