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| author | Mark Fasheh <mfasheh@suse.de> | 2014-07-17 12:39:00 -0700 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-09-17 13:37:50 -0700 |
| commit | d3982100baeb9bed8cf931545fb0522268f526e5 (patch) | |
| tree | 4fda14d4f0721f69e284c8dd419d6d05f820f8a5 | |
| parent | 443f24fee731703345e2e6eec8177bb7b7d094c6 (diff) | |
| download | op-kernel-dev-d3982100baeb9bed8cf931545fb0522268f526e5.zip op-kernel-dev-d3982100baeb9bed8cf931545fb0522268f526e5.tar.gz | |
btrfs: add trace for qgroup accounting
We want this to debug qgroup changes on live systems.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/qgroup.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 1 | ||||
| -rw-r--r-- | include/trace/events/btrfs.h | 56 |
3 files changed, 61 insertions, 0 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 2ce4ce7..1e4c6e9 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1335,6 +1335,8 @@ int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans, INIT_LIST_HEAD(&oper->elem.list); oper->elem.seq = 0; + trace_btrfs_qgroup_record_ref(oper); + if (type == BTRFS_QGROUP_OPER_SUB_SUBTREE) { /* * If any operation for this bytenr/ref_root combo @@ -2077,6 +2079,8 @@ static int btrfs_qgroup_account(struct btrfs_trans_handle *trans, ASSERT(is_fstree(oper->ref_root)); + trace_btrfs_qgroup_account(oper); + switch (oper->type) { case BTRFS_QGROUP_OPER_ADD_EXCL: case BTRFS_QGROUP_OPER_SUB_EXCL: diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index d66fbd5..3f1f4e2 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -60,6 +60,7 @@ #include "backref.h" #include "tests/btrfs-tests.h" +#include "qgroup.h" #define CREATE_TRACE_POINTS #include <trace/events/btrfs.h> diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index 4ee4e30..b8774b3 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -23,6 +23,7 @@ struct map_lookup; struct extent_buffer; struct btrfs_work; struct __btrfs_workqueue; +struct btrfs_qgroup_operation; #define show_ref_type(type) \ __print_symbolic(type, \ @@ -1119,6 +1120,61 @@ DEFINE_EVENT(btrfs__workqueue_done, btrfs_workqueue_destroy, TP_ARGS(wq) ); +#define show_oper_type(type) \ + __print_symbolic(type, \ + { BTRFS_QGROUP_OPER_ADD_EXCL, "OPER_ADD_EXCL" }, \ + { BTRFS_QGROUP_OPER_ADD_SHARED, "OPER_ADD_SHARED" }, \ + { BTRFS_QGROUP_OPER_SUB_EXCL, "OPER_SUB_EXCL" }, \ + { BTRFS_QGROUP_OPER_SUB_SHARED, "OPER_SUB_SHARED" }) + +DECLARE_EVENT_CLASS(btrfs_qgroup_oper, + + TP_PROTO(struct btrfs_qgroup_operation *oper), + + TP_ARGS(oper), + + TP_STRUCT__entry( + __field( u64, ref_root ) + __field( u64, bytenr ) + __field( u64, num_bytes ) + __field( u64, seq ) + __field( int, type ) + __field( u64, elem_seq ) + ), + + TP_fast_assign( + __entry->ref_root = oper->ref_root; + __entry->bytenr = oper->bytenr, + __entry->num_bytes = oper->num_bytes; + __entry->seq = oper->seq; + __entry->type = oper->type; + __entry->elem_seq = oper->elem.seq; + ), + + TP_printk("ref_root = %llu, bytenr = %llu, num_bytes = %llu, " + "seq = %llu, elem.seq = %llu, type = %s", + (unsigned long long)__entry->ref_root, + (unsigned long long)__entry->bytenr, + (unsigned long long)__entry->num_bytes, + (unsigned long long)__entry->seq, + (unsigned long long)__entry->elem_seq, + show_oper_type(__entry->type)) +); + +DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_account, + + TP_PROTO(struct btrfs_qgroup_operation *oper), + + TP_ARGS(oper) +); + +DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_record_ref, + + TP_PROTO(struct btrfs_qgroup_operation *oper), + + TP_ARGS(oper) +); + #endif /* _TRACE_BTRFS_H */ /* This part must be outside protection */ |
