Christoph Hellwig 2a842acab1 block: introduce new block status code type ... Currently we use nornal Linux errno values in the block layer, and while we accept any error a few have overloaded magic meanings. This patch instead introduces a new blk_status_t value that holds block layer specific status codes and explicitly explains their meaning. Helpers to convert from and to the previous special meanings are provided for now, but I suspect we want to get rid of them in the long run - those drivers that have a errno input (e.g. networking) usually get errnos that don't know about the special block layer overloads, and similarly returning them to userspace will usually return somethings that strictly speaking isn't correct for file system operations, but that's left as an exercise for later. For now the set of errors is a very limited set that closely corresponds to the previous overloaded errno values, but there is some low hanging fruite to improve it. blk_status_t (ab)uses the sparse __bitwise annotations to allow for sparse typechecking, so that we can easily catch places passing the wrong values. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>		2017-06-09 09:27:32 -06:00
..
aoe.h	aoe: Convert to immutable biovecs	2013-11-23 22:33:52 -08:00
aoeblk.c	block: Use pointer to backing_dev_info from request_queue	2017-02-02 08:20:48 -07:00
aoechr.c	aoe: replace kmalloc and then memcpy with kmemdup	2013-04-30 17:04:08 -07:00
aoecmd.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
aoedev.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
aoemain.c	aoe: whitespace cleanup	2012-12-17 17:15:24 -08:00
aoenet.c	aoe: update copyright date	2013-07-03 16:08:05 -07:00
Makefile	drivers/block/aoe/Makefile: replace the use of <module>-objs with <module>-y	2011-01-19 08:25:02 -07:00