Commit Graph

6 Commits

Author SHA1 Message Date
Kent Overstreet
eb386617be 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>
2024-03-13 21:22:25 -04:00
Kent Overstreet
96dea3d599 bcachefs: Fix W=12 build errors
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22 17:10:13 -04:00
Kent Overstreet
1809b8cba7 bcachefs: Break up io.c
More reorganization, this splits up io.c into
 - io_read.c
 - io_misc.c - fallocate, fpunch, truncate
 - io_write.c

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22 17:10:12 -04:00
Kent Overstreet
a101957649 bcachefs: More style fixes
Fixes for various checkpatch errors.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22 17:09:45 -04:00
Kent Overstreet
5c1ef830f6 bcachefs: Errcodes can now subtype standard error codes
The next patch is going to be adding private error codes for all the
places we return -ENOSPC.

Additionally, this patch updates return paths at all module boundaries
to call bch2_err_class(), to return the standard error code.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22 17:09:40 -04:00
Kent Overstreet
615f867c14 bcachefs: Improved errcodes
Instead of overloading standard error codes (EINTR/EAGAIN), and defining
short lists of error codes in multiple places that potentially end up
overlapping & conflicting, we're now going to have one master list of
error codes.

Error codes are defined with an x-macro: thus we also have
bch2_err_str() now.

Also, error codes have a class field. Now, instead of checking for
errors with ==, code should use bch2_err_matches(), which returns true
if the error is equal to or a sub-error of the error class.

This means we can define unique errors for every source location where
an error is generated, which will help improve our error messages.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22 17:09:36 -04:00