diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-21 22:10:09 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-13 21:22:25 -0400 |
| commit | eb386617be4bdfe02eb0972874f726e2bfc7a6e7 (patch) | |
| tree | 63b70d6b9c2a966be41d8f44d1d86fe6dc692809 /fs/bcachefs/trace.h | |
| parent | 150194cdcb6b4305be41cd8af7a42dd2d1457ae1 (diff) | |
| download | linux-stable-eb386617be4bdfe02eb0972874f726e2bfc7a6e7.tar.gz linux-stable-eb386617be4bdfe02eb0972874f726e2bfc7a6e7.tar.bz2 linux-stable-eb386617be4bdfe02eb0972874f726e2bfc7a6e7.zip | |
bcachefs: Errcode tracepoint, documentation
Add a tracepoint for downcasting private errors to standard errors, so
they can be recovered even when not logged; also, add some
documentation.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/trace.h')
| -rw-r--r-- | fs/bcachefs/trace.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/bcachefs/trace.h b/fs/bcachefs/trace.h index 293b90d704fb..6aa81d1e6d36 100644 --- a/fs/bcachefs/trace.h +++ b/fs/bcachefs/trace.h @@ -1431,6 +1431,25 @@ DEFINE_EVENT(fs_str, data_update, TP_ARGS(c, str) ); +TRACE_EVENT(error_downcast, + TP_PROTO(int bch_err, int std_err, unsigned long ip), + TP_ARGS(bch_err, std_err, ip), + + TP_STRUCT__entry( + __array(char, bch_err, 32 ) + __array(char, std_err, 32 ) + __array(char, ip, 32 ) + ), + + TP_fast_assign( + strscpy(__entry->bch_err, bch2_err_str(bch_err), sizeof(__entry->bch_err)); + strscpy(__entry->std_err, bch2_err_str(std_err), sizeof(__entry->std_err)); + snprintf(__entry->ip, sizeof(__entry->ip), "%ps", (void *) ip); + ), + + TP_printk("%s -> %s %s", __entry->bch_err, __entry->std_err, __entry->ip) +); + #endif /* _TRACE_BCACHEFS_H */ /* This part must be outside protection */ |