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Date: Fri, 24 Jul 2020 10:58:18 +0800
From: brookxu <brookxu.cn@...il.com>
To: tytso@....edu, adilger.kernel@...ger.ca,
linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] ext4: add needed paramter to,
ext4_mb_discard_preallocations trace
Add the needed value to ext4_mb_discard_preallocations trace, so
we can more easily observe the requested number of trim.
Signed-off-by: Chunguang Xu <brookxu@...cent.com>
---
include/trace/events/ext4.h | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index cc41d69..61736d8 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -746,24 +746,26 @@
);
TRACE_EVENT(ext4_discard_preallocations,
- TP_PROTO(struct inode *inode),
+ TP_PROTO(struct inode *inode, unsigned int needed),
- TP_ARGS(inode),
+ TP_ARGS(inode, needed),
TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( ino_t, ino )
+ __field( dev_t, dev )
+ __field( ino_t, ino )
+ __field( unsigned int, needed )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
+ __entry->needed = needed;
),
- TP_printk("dev %d,%d ino %lu",
+ TP_printk("dev %d,%d ino %lu needed %u",
MAJOR(__entry->dev), MINOR(__entry->dev),
- (unsigned long) __entry->ino)
+ (unsigned long) __entry->ino, __entry->needed)
);
TRACE_EVENT(ext4_mb_discard_preallocations,
--
1.8.3.1
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