poky/meta/recipes-kernel/lttng/lttng-modules/0005-fix-ext4-fast-commit-recovery-path-v5.10.patch

From b96f5364ba4d5a8b9e8159fe0b9e20d598a1c0f5 Mon Sep 17 00:00:00 2001
From: Michael Jeanson <mjeanson@efficios.com>
Date: Mon, 26 Oct 2020 17:03:23 -0400
Subject: [PATCH 05/16] fix: ext4: fast commit recovery path (v5.10)

See upstream commit :

  commit 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2
  Author: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
  Date:   Thu Oct 15 13:37:59 2020 -0700

    ext4: fast commit recovery path

    This patch adds fast commit recovery path support for Ext4 file
    system. We add several helper functions that are similar in spirit to
    e2fsprogs journal recovery path handlers. Example of such functions
    include - a simple block allocator, idempotent block bitmap update
    function etc. Using these routines and the fast commit log in the fast
    commit area, the recovery path (ext4_fc_replay()) performs fast commit
    log recovery.

Upstream-Status: Backport

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Ia65cf44e108f2df0b458f0d335f33a8f18f50baa
---
 instrumentation/events/lttng-module/ext4.h | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/instrumentation/events/lttng-module/ext4.h b/instrumentation/events/lttng-module/ext4.h
index f9a55e29..5fddccad 100644
--- a/instrumentation/events/lttng-module/ext4.h
+++ b/instrumentation/events/lttng-module/ext4.h
@@ -1423,6 +1423,18 @@ LTTNG_TRACEPOINT_EVENT(ext4_ext_load_extent,
 	)
 )
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0))
+LTTNG_TRACEPOINT_EVENT(ext4_load_inode,
+	TP_PROTO(struct super_block *sb, unsigned long ino),
+
+	TP_ARGS(sb, ino),
+
+	TP_FIELDS(
+		ctf_integer(dev_t, dev, sb->s_dev)
+		ctf_integer(ino_t, ino, ino)
+	)
+)
+#else
 LTTNG_TRACEPOINT_EVENT(ext4_load_inode,
 	TP_PROTO(struct inode *inode),
 
@@ -2045,6 +2057,34 @@ LTTNG_TRACEPOINT_EVENT(ext4_es_shrink_exit,
 
 #endif
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0))
+LTTNG_TRACEPOINT_EVENT(ext4_fc_replay_scan,
+	TP_PROTO(struct super_block *sb, int error, int off),
+
+	TP_ARGS(sb, error, off),
+
+	TP_FIELDS(
+		ctf_integer(dev_t, dev, sb->s_dev)
+		ctf_integer(int, error, error)
+		ctf_integer(int, off, off)
+	)
+)
+
+LTTNG_TRACEPOINT_EVENT(ext4_fc_replay,
+	TP_PROTO(struct super_block *sb, int tag, int ino, int priv1, int priv2),
+
+	TP_ARGS(sb, tag, ino, priv1, priv2),
+
+	TP_FIELDS(
+		ctf_integer(dev_t, dev, sb->s_dev)
+		ctf_integer(int, tag, tag)
+		ctf_integer(int, ino, ino)
+		ctf_integer(int, priv1, priv1)
+		ctf_integer(int, priv2, priv2)
+	)
+)
+#endif
+
 #endif /* LTTNG_TRACE_EXT4_H */
 
 /* This part must be outside protection */
-- 
2.25.1