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Message-ID: <20230911-raid-stripe-tree-v8-10-647676fa852c@wdc.com>
Date: Mon, 11 Sep 2023 05:52:11 -0700
From: Johannes Thumshirn <johannes.thumshirn@....com>
To: Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
David Sterba <dsterba@...e.com>
Cc: Johannes Thumshirn <johannes.thumshirn@....com>,
Christoph Hellwig <hch@....de>,
Naohiro Aota <naohiro.aota@....com>, Qu Wenruo <wqu@...e.com>,
Damien Le Moal <dlemoal@...nel.org>,
linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v8 10/11] btrfs: add trace events for RST
Add trace events for raid-stripe-tree operations.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>
---
fs/btrfs/raid-stripe-tree.c | 8 +++++
include/trace/events/btrfs.h | 75 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 83 insertions(+)
diff --git a/fs/btrfs/raid-stripe-tree.c b/fs/btrfs/raid-stripe-tree.c
index 7ed02e4b79ec..5a9952cf557c 100644
--- a/fs/btrfs/raid-stripe-tree.c
+++ b/fs/btrfs/raid-stripe-tree.c
@@ -62,6 +62,9 @@ int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start,
if (found_end <= start)
break;
+ trace_btrfs_raid_extent_delete(fs_info, start, end,
+ found_start, found_end);
+
ASSERT(found_start >= start && found_end <= end);
ret = btrfs_del_item(trans, stripe_root, path);
if (ret)
@@ -120,6 +123,8 @@ static int btrfs_insert_one_raid_extent(struct btrfs_trans_handle *trans,
return -ENOMEM;
}
+ trace_btrfs_insert_one_raid_extent(fs_info, bioc->logical, bioc->size,
+ num_stripes);
btrfs_set_stack_stripe_extent_encoding(stripe_extent, encoding);
for (int i = 0; i < num_stripes; i++) {
u64 devid = bioc->stripes[i].dev->devid;
@@ -445,6 +450,9 @@ int btrfs_get_raid_extent_offset(struct btrfs_fs_info *fs_info,
stripe->physical = physical + offset;
+ trace_btrfs_get_raid_extent_offset(fs_info, logical, *length,
+ stripe->physical, devid);
+
ret = 0;
goto free_path;
}
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index b2db2c2f1c57..e2c6f1199212 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -2497,6 +2497,81 @@ DEFINE_EVENT(btrfs_raid56_bio, raid56_write,
TP_ARGS(rbio, bio, trace_info)
);
+TRACE_EVENT(btrfs_insert_one_raid_extent,
+
+ TP_PROTO(struct btrfs_fs_info *fs_info, u64 logical, u64 length,
+ int num_stripes),
+
+ TP_ARGS(fs_info, logical, length, num_stripes),
+
+ TP_STRUCT__entry_btrfs(
+ __field( u64, logical )
+ __field( u64, length )
+ __field( int, num_stripes )
+ ),
+
+ TP_fast_assign_btrfs(fs_info,
+ __entry->logical = logical;
+ __entry->length = length;
+ __entry->num_stripes = num_stripes;
+ ),
+
+ TP_printk_btrfs("logical=%llu, length=%llu, num_stripes=%d",
+ __entry->logical, __entry->length,
+ __entry->num_stripes)
+);
+
+TRACE_EVENT(btrfs_raid_extent_delete,
+
+ TP_PROTO(struct btrfs_fs_info *fs_info, u64 start, u64 end,
+ u64 found_start, u64 found_end),
+
+ TP_ARGS(fs_info, start, end, found_start, found_end),
+
+ TP_STRUCT__entry_btrfs(
+ __field( u64, start )
+ __field( u64, end )
+ __field( u64, found_start )
+ __field( u64, found_end )
+ ),
+
+ TP_fast_assign_btrfs(fs_info,
+ __entry->start = start;
+ __entry->end = end;
+ __entry->found_start = found_start;
+ __entry->found_end = found_end;
+ ),
+
+ TP_printk_btrfs("start=%llu, end=%llu, found_start=%llu, found_end=%llu",
+ __entry->start, __entry->end, __entry->found_start,
+ __entry->found_end)
+);
+
+TRACE_EVENT(btrfs_get_raid_extent_offset,
+
+ TP_PROTO(struct btrfs_fs_info *fs_info, u64 logical, u64 length,
+ u64 physical, u64 devid),
+
+ TP_ARGS(fs_info, logical, length, physical, devid),
+
+ TP_STRUCT__entry_btrfs(
+ __field( u64, logical )
+ __field( u64, length )
+ __field( u64, physical )
+ __field( u64, devid )
+ ),
+
+ TP_fast_assign_btrfs(fs_info,
+ __entry->logical = logical;
+ __entry->length = length;
+ __entry->physical = physical;
+ __entry->devid = devid;
+ ),
+
+ TP_printk_btrfs("logical=%llu, length=%llu, physical=%llu, devid=%llu",
+ __entry->logical, __entry->length, __entry->physical,
+ __entry->devid)
+);
#endif /* _TRACE_BTRFS_H */
/* This part must be outside protection */
--
2.41.0
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