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/errcode.c | |
| parent | 150194cdcb6b4305be41cd8af7a42dd2d1457ae1 (diff) | |
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/errcode.c')
| -rw-r--r-- | fs/bcachefs/errcode.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/bcachefs/errcode.c b/fs/bcachefs/errcode.c index d260ff9bbfeb..43557bebd0f8 100644 --- a/fs/bcachefs/errcode.c +++ b/fs/bcachefs/errcode.c @@ -2,6 +2,7 @@ #include "bcachefs.h" #include "errcode.h" +#include "trace.h" #include <linux/errname.h> @@ -49,15 +50,17 @@ bool __bch2_err_matches(int err, int class) return err == class; } -int __bch2_err_class(int err) +int __bch2_err_class(int bch_err) { - err = -err; - BUG_ON((unsigned) err >= BCH_ERR_MAX); + int std_err = -bch_err; + BUG_ON((unsigned) std_err >= BCH_ERR_MAX); - while (err >= BCH_ERR_START && bch2_errcode_parents[err - BCH_ERR_START]) - err = bch2_errcode_parents[err - BCH_ERR_START]; + while (std_err >= BCH_ERR_START && bch2_errcode_parents[std_err - BCH_ERR_START]) + std_err = bch2_errcode_parents[std_err - BCH_ERR_START]; + + trace_error_downcast(bch_err, std_err, _RET_IP_); - return -err; + return -std_err; } const char *bch2_blk_status_to_str(blk_status_t status) |