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| author |   Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-11-12 17:01:00 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-12-23 10:18:00 +0900 |
| commit | 1661d07c2d5e6486cab1c189cfb65ff60abf9b92 (patch) | |
| tree | 1230d1c17610face401d553abe723cd52eafe7d9 | |
| parent | f2fs: introduce f2fs_issue_discard() to clean up (diff) | |
| download | linux-dev-1661d07c2d5e6486cab1c189cfb65ff60abf9b92.tar.xz linux-dev-1661d07c2d5e6486cab1c189cfb65ff60abf9b92.zip | |
f2fs: add a tracepoint for f2fs_issue_discard
This patch adds a tracepoint for f2fs_issue_discard.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
| -rw-r--r-- | fs/f2fs/segment.c | 1 | ||||
| -rw-r--r-- | include/trace/events/f2fs.h | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index c51fa4bee60b..cfc0eb4f24d5 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -272,6 +272,7 @@ static void f2fs_issue_discard(struct f2fs_sb_info *sbi, sector_t start = ((sector_t)blkstart) << sbi->log_sectors_per_block; sector_t len = ((sector_t)blklen) << sbi->log_sectors_per_block; blkdev_issue_discard(sbi->sb->s_bdev, start, 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 e0dc355fa317..47ee70de7fed 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 */ |