Messages in this thread Patch in this message | | | From | Jaegeuk Kim <> | Subject | [PATCH 5/5] f2fs: add a tracepoint for f2fs_issue_discard | Date | Fri, 15 Nov 2013 14:20:24 +0900 |
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This patch adds a tracepoint for f2fs_issue_discard.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com> --- fs/f2fs/segment.c | 1 + include/trace/events/f2fs.h | 23 +++++++++++++++++++++++ 2 files changed, 24 insertions(+)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index d021cf3..1f83999 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -274,6 +274,7 @@ static void f2fs_issue_discard(struct f2fs_sb_info *sbi, blkdev_issue_discard(sbi->sb->s_bdev, sector_addr, sector_len, GFP_NOFS, 0); + trace_f2fs_issue_discard(sbi->sb, blkstart, blklen); } static void add_discard_addrs(struct f2fs_sb_info *sbi, diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index e0dc355..47ee70d 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -727,6 +727,29 @@ TRACE_EVENT(f2fs_write_checkpoint, __entry->msg) ); +TRACE_EVENT(f2fs_issue_discard, + + TP_PROTO(struct super_block *sb, block_t blkstart, block_t blklen), + + TP_ARGS(sb, blkstart, blklen), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(block_t, blkstart) + __field(block_t, blklen) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->blkstart = blkstart; + __entry->blklen = blklen; + ), + + TP_printk("dev = (%d,%d), blkstart = 0x%llx, blklen = 0x%llx", + show_dev(__entry), + (unsigned long long)__entry->blkstart, + (unsigned long long)__entry->blklen) +); #endif /* _TRACE_F2FS_H */ /* This part must be outside protection */ -- 1.8.4.474.g128a96c
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