From ddad4e82bc2cc48c0eb56d2daf69409026e8b31a Mon Sep 17 00:00:00 2001
From: Michael Jeanson <mjeanson@efficios.com>
Date: Tue, 27 Oct 2020 12:10:05 -0400
Subject: [PATCH 09/19] fix: btrfs: make ordered extent tracepoint take
 btrfs_inode (v5.10)

See upstream commit :

  commit acbf1dd0fcbd10c67826a19958f55a053b32f532
  Author: Nikolay Borisov <nborisov@suse.com>
  Date:   Mon Aug 31 14:42:40 2020 +0300

    btrfs: make ordered extent tracepoint take btrfs_inode

Upstream-Status: Backport

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I096d0801ffe0ad826cfe414cdd1c0857cbd2b624
---
 instrumentation/events/lttng-module/btrfs.h | 120 +++++++++++++++-----
 1 file changed, 90 insertions(+), 30 deletions(-)

diff --git a/instrumentation/events/lttng-module/btrfs.h b/instrumentation/events/lttng-module/btrfs.h
index 52fcfd0d..d47f3280 100644
--- a/instrumentation/events/lttng-module/btrfs.h
+++ b/instrumentation/events/lttng-module/btrfs.h
@@ -346,7 +346,29 @@ LTTNG_TRACEPOINT_EVENT(btrfs_handle_em_exist,
 )
 #endif
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0))
+LTTNG_TRACEPOINT_EVENT_CLASS(btrfs__ordered_extent,
+
+	TP_PROTO(const struct btrfs_inode *inode,
+		 const struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered),
+
+	TP_FIELDS(
+		ctf_array(u8, fsid, inode->root->lttng_fs_info_fsid, BTRFS_UUID_SIZE)
+		ctf_integer(ino_t, ino, btrfs_ino(inode))
+		ctf_integer(u64, file_offset, ordered->file_offset)
+		ctf_integer(u64, start, ordered->disk_bytenr)
+		ctf_integer(u64, len, ordered->num_bytes)
+		ctf_integer(u64, disk_len, ordered->disk_num_bytes)
+		ctf_integer(u64, bytes_left, ordered->bytes_left)
+		ctf_integer(unsigned long, flags, ordered->flags)
+		ctf_integer(int, compress_type, ordered->compress_type)
+		ctf_integer(int, refs, refcount_read(&ordered->refs))
+		ctf_integer(u64, root_objectid, inode->root->root_key.objectid)
+	)
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
 LTTNG_TRACEPOINT_EVENT_CLASS(btrfs__ordered_extent,
 
 	TP_PROTO(const struct inode *inode,
@@ -458,7 +480,39 @@ LTTNG_TRACEPOINT_EVENT_CLASS(btrfs__ordered_extent,
 )
 #endif
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0) || \
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0))
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_add,
+
+	TP_PROTO(const struct btrfs_inode *inode,
+		 const struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_remove,
+
+	TP_PROTO(const struct btrfs_inode *inode,
+		 const struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_start,
+
+	TP_PROTO(const struct btrfs_inode *inode,
+		 const struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_put,
+
+	TP_PROTO(const struct btrfs_inode *inode,
+		 const struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0) || \
 	LTTNG_SLE_KERNEL_RANGE(4,4,73,5,0,0, 4,4,73,6,0,0) || \
 	LTTNG_SLE_KERNEL_RANGE(4,4,82,6,0,0, 4,4,82,7,0,0) || \
 	LTTNG_SLE_KERNEL_RANGE(4,4,92,6,0,0, 4,4,92,7,0,0) || \
@@ -494,7 +548,41 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_put,
 
 	TP_ARGS(inode, ordered)
 )
+#else
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_add,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_remove,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_start,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
 
+LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_put,
+
+	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
+
+	TP_ARGS(inode, ordered)
+)
+#endif
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0) || \
+	LTTNG_SLE_KERNEL_RANGE(4,4,73,5,0,0, 4,4,73,6,0,0) || \
+	LTTNG_SLE_KERNEL_RANGE(4,4,82,6,0,0, 4,4,82,7,0,0) || \
+	LTTNG_SLE_KERNEL_RANGE(4,4,92,6,0,0, 4,4,92,7,0,0) || \
+	LTTNG_SLE_KERNEL_RANGE(4,4,103,6,0,0, 4,5,0,0,0,0))
 LTTNG_TRACEPOINT_EVENT_CLASS(btrfs__writepage,
 
 	TP_PROTO(const struct page *page, const struct inode *inode,
@@ -563,34 +651,6 @@ LTTNG_TRACEPOINT_EVENT(btrfs_sync_file,
 	)
 )
 #else
-LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_add,
-
-	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
-
-	TP_ARGS(inode, ordered)
-)
-
-LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_remove,
-
-	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
-
-	TP_ARGS(inode, ordered)
-)
-
-LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_start,
-
-	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
-
-	TP_ARGS(inode, ordered)
-)
-
-LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_put,
-
-	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
-
-	TP_ARGS(inode, ordered)
-)
-
 LTTNG_TRACEPOINT_EVENT_CLASS(btrfs__writepage,
 
 	TP_PROTO(struct page *page, struct inode *inode,
-- 
2.19.1