mirrors/scoutfs
1
0
Fork 0
mirror of https://github.com/versity/scoutfs.git synced 2026-02-07 19:20:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

scoutfs: add seg item append trace point

Browse Source 
Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2018-03-26 14:35:47 -07:00
committed by Mark Swan
parent 9148f24aa2
commit 4b413ed804
2 changed files with 39 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
kmod/src/scoutfs_trace.h
View File

@@ -1667,6 +1667,39 @@ DEFINE_EVENT(scoutfs_seg_class, scoutfs_seg_free,
TP_ARGS(seg)
);
TRACE_EVENT(scoutfs_seg_append_item,
TP_PROTO(struct super_block *sb, u64 segno, u64 seq, u32 nr_items,
u32 total_bytes, struct scoutfs_key *key, u16 val_len),
TP_ARGS(sb, segno, seq, nr_items, total_bytes, key, val_len),
TP_STRUCT__entry(
__field(__u64, fsid)
__field(__u64, segno)
__field(__u64, seq)
__field(__u32, nr_items)
__field(__u32, total_bytes)
__field_struct(struct scoutfs_key, key)
__field(__u16, val_len)
),
TP_fast_assign(
__entry->fsid = FSID_ARG(sb);
__entry->segno = segno;
__entry->seq = seq;
__entry->nr_items = nr_items;
__entry->total_bytes = total_bytes;
__entry->key = *key;
__entry->val_len = val_len;
),
TP_printk("fsid "FSID_FMT" segno %llu seq %llu nr_items %u total_bytes %u key "SK_FMT" val_len %u",
__entry->fsid, __entry->segno, __entry->seq,
__entry->nr_items, __entry->total_bytes,
SK_ARG(&__entry->key),
__entry->val_len)
);
DECLARE_EVENT_CLASS(scoutfs_net_class,
TP_PROTO(struct super_block *sb, struct sockaddr_in *name,
struct sockaddr_in *peer, struct scoutfs_net_header *nh),

6
kmod/src/seg.c
View File

@@ -650,6 +650,12 @@ bool scoutfs_seg_append_item(struct super_block *sb, struct scoutfs_segment *seg
links[i] = &sblk->skip_links[i];
}
trace_scoutfs_seg_append_item(sb, le64_to_cpu(sblk->segno),
le64_to_cpu(sblk->seq),
le32_to_cpu(sblk->nr_items),
le32_to_cpu(sblk->total_bytes),
key, val_len);
/*
* It's very bad data corruption if we write out of order items
* to a segment. It'll mislead the key search during read and