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author | jmbills <jason.m.bills@intel.com> | 2021-08-03 01:45:08 +0300 |
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committer | GitHub <noreply@github.com> | 2021-08-03 01:45:08 +0300 |
commit | 10ad77d5bc86709d8ff7f95e7040e39f1c153903 (patch) | |
tree | 307cedb87f4c0a329740c55ac364ed489d1d8fc2 /poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch | |
parent | c6b1c6ba7a01b7987d65d61c262c44c320193108 (diff) | |
parent | 67327ddc580cb9a85219a534844832a1682780d4 (diff) | |
download | openbmc-10ad77d5bc86709d8ff7f95e7040e39f1c153903.tar.xz |
Update
Diffstat (limited to 'poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch')
-rw-r--r-- | poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch deleted file mode 100644 index 71f99b80a..000000000 --- a/poky/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 - |