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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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