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Add server extent motion tracking

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Add tracking in the alloc functions that the server uses to move extents
between allocator structures on behalf of client mounts.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2021-10-20 14:06:02 -07:00
parent 70ede28e39
commit 7d71b610af
2 changed files with 36 additions and 0 deletions
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6
kmod/src/alloc.c
View File

@@ -970,6 +970,8 @@ int scoutfs_alloc_move(struct super_block *sb, struct scoutfs_alloc *alloc,
moved += ext.len;
scoutfs_inc_counter(sb, alloc_moved_extent);
trace_scoutfs_alloc_move_extent(sb, &ext);
}
scoutfs_inc_counter(sb, alloc_move);
@@ -1157,6 +1159,8 @@ int scoutfs_alloc_fill_list(struct super_block *sb,
for (i = 0; i < ext.len; i++)
list_block_add(lhead, lblk, ext.start + i);
trace_scoutfs_alloc_fill_extent(sb, &ext);
}
out:
@@ -1225,6 +1229,8 @@ int scoutfs_alloc_empty_list(struct super_block *sb,
break;
list_block_remove(lhead, lblk, ext.len);
trace_scoutfs_alloc_empty_extent(sb, &ext);
}
scoutfs_block_put(sb, bl);

30
kmod/src/scoutfs_trace.h
View File

@@ -2609,6 +2609,36 @@ TRACE_EVENT(scoutfs_alloc_move,
__entry->ret)
);
DECLARE_EVENT_CLASS(scoutfs_alloc_extent_class,
TP_PROTO(struct super_block *sb, struct scoutfs_extent *ext),
TP_ARGS(sb, ext),
TP_STRUCT__entry(
SCSB_TRACE_FIELDS
STE_FIELDS(ext)
),
TP_fast_assign(
SCSB_TRACE_ASSIGN(sb);
STE_ASSIGN(ext, ext);
),
TP_printk(SCSBF" ext "STE_FMT, SCSB_TRACE_ARGS, STE_ENTRY_ARGS(ext))
);
DEFINE_EVENT(scoutfs_alloc_extent_class, scoutfs_alloc_move_extent,
TP_PROTO(struct super_block *sb, struct scoutfs_extent *ext),
TP_ARGS(sb, ext)
);
DEFINE_EVENT(scoutfs_alloc_extent_class, scoutfs_alloc_fill_extent,
TP_PROTO(struct super_block *sb, struct scoutfs_extent *ext),
TP_ARGS(sb, ext)
);
DEFINE_EVENT(scoutfs_alloc_extent_class, scoutfs_alloc_empty_extent,
TP_PROTO(struct super_block *sb, struct scoutfs_extent *ext),
TP_ARGS(sb, ext)
);
TRACE_EVENT(scoutfs_item_read_page,
TP_PROTO(struct super_block *sb, struct scoutfs_key *key,
struct scoutfs_key *pg_start, struct scoutfs_key *pg_end),