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f2fs: make sure trace all f2fs_issue_flush 

The root device's issue flush trace is missing,
add it and tracing the result from submit.

Fixes d50aaeec90 ("f2fs: show actual device info in tracepoints")
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Kinglong Mee 2017-03-04 22:13:10 +08:00 committed by Jaegeuk Kim
parent 8ff0971f15
commit 20fda56b01
2 changed files with 20 additions and 15 deletions
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24
fs/f2fs/segment.c
View File

@ -441,7 +441,8 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
}
}
static int __submit_flush_wait(struct block_device *bdev)
static int __submit_flush_wait(struct f2fs_sb_info *sbi,
struct block_device *bdev)
{
struct bio *bio = f2fs_bio_alloc(0);
int ret;
@ -450,23 +451,24 @@ static int __submit_flush_wait(struct block_device *bdev)
bio->bi_bdev = bdev;
ret = submit_bio_wait(bio);
bio_put(bio);
trace_f2fs_issue_flush(bdev, test_opt(sbi, NOBARRIER),
test_opt(sbi, FLUSH_MERGE), ret);
return ret;
}
static int submit_flush_wait(struct f2fs_sb_info *sbi)
{
int ret = __submit_flush_wait(sbi->sb->s_bdev);
int ret = __submit_flush_wait(sbi, sbi->sb->s_bdev);
int i;
if (sbi->s_ndevs && !ret) {
for (i = 1; i < sbi->s_ndevs; i++) {
trace_f2fs_issue_flush(FDEV(i).bdev,
test_opt(sbi, NOBARRIER),
test_opt(sbi, FLUSH_MERGE));
ret = __submit_flush_wait(FDEV(i).bdev);
if (ret)
break;
}
if (!sbi->s_ndevs || ret)
return ret;
for (i = 1; i < sbi->s_ndevs; i++) {
ret = __submit_flush_wait(sbi, FDEV(i).bdev);
if (ret)
break;
}
return ret;
}

11
include/trace/events/f2fs.h
View File

@ -1176,26 +1176,29 @@ TRACE_EVENT(f2fs_issue_reset_zone,
TRACE_EVENT(f2fs_issue_flush,
TP_PROTO(struct block_device *dev, unsigned int nobarrier,
unsigned int flush_merge),
unsigned int flush_merge, int ret),
TP_ARGS(dev, nobarrier, flush_merge),
TP_ARGS(dev, nobarrier, flush_merge, ret),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(unsigned int, nobarrier)
__field(unsigned int, flush_merge)
__field(int, ret)
),
TP_fast_assign(
__entry->dev = dev->bd_dev;
__entry->nobarrier = nobarrier;
__entry->flush_merge = flush_merge;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), %s %s",
TP_printk("dev = (%d,%d), %s %s, ret = %d",
show_dev(__entry->dev),
__entry->nobarrier ? "skip (nobarrier)" : "issue",
__entry->flush_merge ? " with flush_merge" : "")
__entry->flush_merge ? " with flush_merge" : "",
__entry->ret)
);
TRACE_EVENT(f2fs_lookup_extent_tree_start,