Revert "lttng-modules: backport writeback.h changes from 2.12.x to fix kernel 5.4.62+"

We'll be using an upstream version bump instead of this backport

This reverts commit 348c666b2dca230308c8462dac2117b04cca6ae7.

(From OE-Core rev: 49ab42d4dc93cee75ac7e9b3a4623ff1f42b306f)

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 3 insertions, 132 deletions

diff --git a/meta/recipes-kernel/lttng/lttng-modules/0001-lttng-modules-backport-writeback.h-changes-from-2.12.patch b/meta/recipes-kernel/lttng/lttng-modules/0001-lttng-modules-backport-writeback.h-changes-from-2.12.patch
deleted file mode 100644
index 25b0a57bc6..0000000000
--- a/meta/recipes-kernel/lttng/lttng-modules/0001-lttng-modules-backport-writeback.h-changes-from-2.12.patch
+++ /dev/null
@@ -1,128 +0,0 @@
-From 66d0869cf54ed79a33345f537dce2f7840e279f0 Mon Sep 17 00:00:00 2001
-From: Bruce Ashfield <bruce.ashfield@gmail.com>
-Date: Tue, 29 Sep 2020 10:28:20 -0400
-Subject: [PATCH] lttng-modules: backport writeback.h changes from 2.12.x to
- fix kernel 5.4.62+
-
-Backporting the kernel version changes for writeback.h to fix
-compilation against kernel stable versions 5.4.62+
-
-This is a combination of upstream commits:
-
- 87b2aff [fix: writeback: Fix sync livelock due to b_dirty_time processing (v5.9)]
- b74b25f [fix: version ranges for ext4_discard_preallocations and writeback_queue_io
-
-Upstream-status: Backport
-
-Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
----
- .../events/lttng-module/writeback.h           | 48 +++++++++++++------
- 1 file changed, 33 insertions(+), 15 deletions(-)
-
-diff --git a/instrumentation/events/lttng-module/writeback.h b/instrumentation/events/lttng-module/writeback.h
-index 3327a0f..8d2250e 100644
---- a/instrumentation/events/lttng-module/writeback.h
-+++ b/instrumentation/events/lttng-module/writeback.h
-@@ -372,34 +372,55 @@ LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balanc
- #endif
- LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
- 
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) || \
-+       LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
-+       LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
-+       LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
-+       LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
-+       LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
-+       LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
-+       LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
-+LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
-+       TP_PROTO(struct bdi_writeback *wb,
-+                struct wb_writeback_work *work,
-+                unsigned long dirtied_before,
-+                int moved),
-+       TP_ARGS(wb, work, dirtied_before, moved),
-+       TP_FIELDS(
-+               ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
-+               ctf_integer(unsigned long, older, dirtied_before)
-+               ctf_integer(int, moved, moved)
-+       )
-+)
-+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
- LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
-        TP_PROTO(struct bdi_writeback *wb,
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
-                 struct wb_writeback_work *work,
--#else
--                unsigned long *older_than_this,
--#endif
-                 int moved),
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
-        TP_ARGS(wb, work, moved),
--#else
-+       TP_FIELDS(
-+               ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
-+               ctf_integer(int, moved, moved)
-+       )
-+)
-+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
-+LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
-+       TP_PROTO(struct bdi_writeback *wb,
-+                unsigned long *older_than_this,
-+                int moved),
-        TP_ARGS(wb, older_than_this, moved),
--#endif
-        TP_FIELDS(
-                ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
--#else
-                ctf_integer(unsigned long, older,
-                        older_than_this ? *older_than_this : 0)
-                ctf_integer(long, age,
-                        older_than_this ?
-                                (jiffies - *older_than_this) * 1000 / HZ
-                                : -1)
--#endif
-                ctf_integer(int, moved, moved)
-        )
- )
-+#endif
- 
- #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
- LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
-@@ -425,7 +446,7 @@ LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
-                ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
-        )
- )
--#else
-+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
- LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
- 
-        writeback_global_dirty_state,
-@@ -450,7 +471,6 @@ LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
-        )
- )
- #endif
--#endif
- 
- #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
- 
-@@ -661,7 +681,6 @@ LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
- )
- #endif
- 
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
- LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
- 
-        TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
-@@ -687,7 +706,6 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wai
- 
-        TP_ARGS(usec_timeout, usec_delayed)
- )
--#endif
- 
- #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
- LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
--- 
-2.25.1
-
diff --git a/meta/recipes-kernel/lttng/lttng-modules_2.11.2.bb b/meta/recipes-kernel/lttng/lttng-modules_2.11.2.bb
index 8e56a3c10a..6fff096a37 100644
--- a/meta/recipes-kernel/lttng/lttng-modules_2.11.2.bb
+++ b/meta/recipes-kernel/lttng/lttng-modules_2.11.2.bb
@@ -11,7 +11,6 @@ COMPATIBLE_HOST = '(x86_64|i.86|powerpc|aarch64|mips|nios2|arm|riscv).*-linux'
 SRC_URI = "https://lttng.org/files/${BPN}/${BPN}-${PV}.tar.bz2 \
            file://Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch \
            file://BUILD_RUNTIME_BUG_ON-vs-gcc7.patch \
-           file://0001-lttng-modules-backport-writeback.h-changes-from-2.12.patch \
            "
 
 SRC_URI[md5sum] = "2e3bc8cfb264fa13f374618b46f170e7"
@@ -34,11 +33,11 @@ python do_package_prepend() {
 BBCLASSEXTEND = "devupstream:target"
 LIC_FILES_CHKSUM_class-devupstream = "file://LICENSE;md5=3f882d431dc0f32f1f44c0707aa41128"
 DEFAULT_PREFERENCE_class-devupstream = "-1"
-SRC_URI_class-devupstream = "git://git.lttng.org/lttng-modules;branch=stable-2.12 \
+SRC_URI_class-devupstream = "git://git.lttng.org/lttng-modules;branch=stable-2.11 \
            file://Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch \
            file://BUILD_RUNTIME_BUG_ON-vs-gcc7.patch \
            "
-SRCREV_class-devupstream = "01a12501e0b0395b60c7e392cb7dded51ae572ca"
-PV_class-devupstream = "2.12.2+git${SRCPV}"
+SRCREV_class-devupstream = "17c413953603f063f2a9d6c3788bec914ce6f955"
+PV_class-devupstream = "2.11.2+git${SRCPV}"
 S_class-devupstream = "${WORKDIR}/git"
 SRCREV_FORMAT ?= "lttng_git"