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f2fs: add a tracepoint for f2fs_issue_discard

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This patch adds a tracepoint for f2fs_issue_discard.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2013-11-12 17:01:00 +09:00
parent 3720887910
commit 1661d07c2d
2 changed files with 24 additions and 0 deletions
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1
fs/f2fs/segment.c
View file

@ -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,

23
include/trace/events/f2fs.h
View file

@ -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 */