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authorChristoph Hellwig <hch@lst.de>2017-06-03 10:38:06 +0300
committerJens Axboe <axboe@fb.com>2017-06-09 18:27:32 +0300
commit4e4cbee93d56137ebff722be022cae5f70ef84fb (patch)
tree4fa7345155599fc6bdd653fca8c5224ddf90a5be /drivers/md/bcache
parentfc17b6534eb8395f0b3133eb31d87deec32c642b (diff)
downloadlinux-4e4cbee93d56137ebff722be022cae5f70ef84fb.tar.xz
block: switch bios to blk_status_t
Replace bi_error with a new bi_status to allow for a clear conversion. Note that device mapper overloaded bi_error with a private value, which we'll have to keep arround at least for now and thus propagate to a proper blk_status_t value. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/bcache')
-rw-r--r--drivers/md/bcache/bcache.h7
-rw-r--r--drivers/md/bcache/btree.c6
-rw-r--r--drivers/md/bcache/io.c6
-rw-r--r--drivers/md/bcache/journal.c2
-rw-r--r--drivers/md/bcache/movinggc.c10
-rw-r--r--drivers/md/bcache/request.c28
-rw-r--r--drivers/md/bcache/request.h2
-rw-r--r--drivers/md/bcache/super.c6
-rw-r--r--drivers/md/bcache/writeback.c4
9 files changed, 36 insertions, 35 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index c3ea03c9a1a8..dee542fff68e 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -849,10 +849,11 @@ static inline void wake_up_allocators(struct cache_set *c)
/* Forward declarations */
-void bch_count_io_errors(struct cache *, int, const char *);
+void bch_count_io_errors(struct cache *, blk_status_t, const char *);
void bch_bbio_count_io_errors(struct cache_set *, struct bio *,
- int, const char *);
-void bch_bbio_endio(struct cache_set *, struct bio *, int, const char *);
+ blk_status_t, const char *);
+void bch_bbio_endio(struct cache_set *, struct bio *, blk_status_t,
+ const char *);
void bch_bbio_free(struct bio *, struct cache_set *);
struct bio *bch_bbio_alloc(struct cache_set *);
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 450d0e848ae4..866dcf78ff8e 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -307,7 +307,7 @@ static void bch_btree_node_read(struct btree *b)
bch_submit_bbio(bio, b->c, &b->key, 0);
closure_sync(&cl);
- if (bio->bi_error)
+ if (bio->bi_status)
set_btree_node_io_error(b);
bch_bbio_free(bio, b->c);
@@ -374,10 +374,10 @@ static void btree_node_write_endio(struct bio *bio)
struct closure *cl = bio->bi_private;
struct btree *b = container_of(cl, struct btree, io);
- if (bio->bi_error)
+ if (bio->bi_status)
set_btree_node_io_error(b);
- bch_bbio_count_io_errors(b->c, bio, bio->bi_error, "writing btree");
+ bch_bbio_count_io_errors(b->c, bio, bio->bi_status, "writing btree");
closure_put(cl);
}
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index db45a88c0ce9..6a9b85095e7b 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -50,7 +50,7 @@ void bch_submit_bbio(struct bio *bio, struct cache_set *c,
/* IO errors */
-void bch_count_io_errors(struct cache *ca, int error, const char *m)
+void bch_count_io_errors(struct cache *ca, blk_status_t error, const char *m)
{
/*
* The halflife of an error is:
@@ -103,7 +103,7 @@ void bch_count_io_errors(struct cache *ca, int error, const char *m)
}
void bch_bbio_count_io_errors(struct cache_set *c, struct bio *bio,
- int error, const char *m)
+ blk_status_t error, const char *m)
{
struct bbio *b = container_of(bio, struct bbio, bio);
struct cache *ca = PTR_CACHE(c, &b->key, 0);
@@ -132,7 +132,7 @@ void bch_bbio_count_io_errors(struct cache_set *c, struct bio *bio,
}
void bch_bbio_endio(struct cache_set *c, struct bio *bio,
- int error, const char *m)
+ blk_status_t error, const char *m)
{
struct closure *cl = bio->bi_private;
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 1198e53d5670..0352d05e495c 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -549,7 +549,7 @@ static void journal_write_endio(struct bio *bio)
{
struct journal_write *w = bio->bi_private;
- cache_set_err_on(bio->bi_error, w->c, "journal io error");
+ cache_set_err_on(bio->bi_status, w->c, "journal io error");
closure_put(&w->c->journal.io);
}
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 13b8a907006d..f633b30c962e 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -63,14 +63,14 @@ static void read_moving_endio(struct bio *bio)
struct moving_io *io = container_of(bio->bi_private,
struct moving_io, cl);
- if (bio->bi_error)
- io->op.error = bio->bi_error;
+ if (bio->bi_status)
+ io->op.status = bio->bi_status;
else if (!KEY_DIRTY(&b->key) &&
ptr_stale(io->op.c, &b->key, 0)) {
- io->op.error = -EINTR;
+ io->op.status = BLK_STS_IOERR;
}
- bch_bbio_endio(io->op.c, bio, bio->bi_error, "reading data to move");
+ bch_bbio_endio(io->op.c, bio, bio->bi_status, "reading data to move");
}
static void moving_init(struct moving_io *io)
@@ -92,7 +92,7 @@ static void write_moving(struct closure *cl)
struct moving_io *io = container_of(cl, struct moving_io, cl);
struct data_insert_op *op = &io->op;
- if (!op->error) {
+ if (!op->status) {
moving_init(io);
io->bio.bio.bi_iter.bi_sector = KEY_START(&io->w->key);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 709c9cc34369..019b3df9f1c6 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -81,7 +81,7 @@ static void bch_data_insert_keys(struct closure *cl)
if (ret == -ESRCH) {
op->replace_collision = true;
} else if (ret) {
- op->error = -ENOMEM;
+ op->status = BLK_STS_RESOURCE;
op->insert_data_done = true;
}
@@ -178,17 +178,17 @@ static void bch_data_insert_endio(struct bio *bio)
struct closure *cl = bio->bi_private;
struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
- if (bio->bi_error) {
+ if (bio->bi_status) {
/* TODO: We could try to recover from this. */
if (op->writeback)
- op->error = bio->bi_error;
+ op->status = bio->bi_status;
else if (!op->replace)
set_closure_fn(cl, bch_data_insert_error, op->wq);
else
set_closure_fn(cl, NULL, NULL);
}
- bch_bbio_endio(op->c, bio, bio->bi_error, "writing data to cache");
+ bch_bbio_endio(op->c, bio, bio->bi_status, "writing data to cache");
}
static void bch_data_insert_start(struct closure *cl)
@@ -488,15 +488,15 @@ static void bch_cache_read_endio(struct bio *bio)
* from the backing device.
*/
- if (bio->bi_error)
- s->iop.error = bio->bi_error;
+ if (bio->bi_status)
+ s->iop.status = bio->bi_status;
else if (!KEY_DIRTY(&b->key) &&
ptr_stale(s->iop.c, &b->key, 0)) {
atomic_long_inc(&s->iop.c->cache_read_races);
- s->iop.error = -EINTR;
+ s->iop.status = BLK_STS_IOERR;
}
- bch_bbio_endio(s->iop.c, bio, bio->bi_error, "reading from cache");
+ bch_bbio_endio(s->iop.c, bio, bio->bi_status, "reading from cache");
}
/*
@@ -593,9 +593,9 @@ static void request_endio(struct bio *bio)
{
struct closure *cl = bio->bi_private;
- if (bio->bi_error) {
+ if (bio->bi_status) {
struct search *s = container_of(cl, struct search, cl);
- s->iop.error = bio->bi_error;
+ s->iop.status = bio->bi_status;
/* Only cache read errors are recoverable */
s->recoverable = false;
}
@@ -611,7 +611,7 @@ static void bio_complete(struct search *s)
&s->d->disk->part0, s->start_time);
trace_bcache_request_end(s->d, s->orig_bio);
- s->orig_bio->bi_error = s->iop.error;
+ s->orig_bio->bi_status = s->iop.status;
bio_endio(s->orig_bio);
s->orig_bio = NULL;
}
@@ -664,7 +664,7 @@ static inline struct search *search_alloc(struct bio *bio,
s->iop.inode = d->id;
s->iop.write_point = hash_long((unsigned long) current, 16);
s->iop.write_prio = 0;
- s->iop.error = 0;
+ s->iop.status = 0;
s->iop.flags = 0;
s->iop.flush_journal = op_is_flush(bio->bi_opf);
s->iop.wq = bcache_wq;
@@ -707,7 +707,7 @@ static void cached_dev_read_error(struct closure *cl)
/* Retry from the backing device: */
trace_bcache_read_retry(s->orig_bio);
- s->iop.error = 0;
+ s->iop.status = 0;
do_bio_hook(s, s->orig_bio);
/* XXX: invalidate cache */
@@ -767,7 +767,7 @@ static void cached_dev_read_done_bh(struct closure *cl)
!s->cache_miss, s->iop.bypass);
trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);
- if (s->iop.error)
+ if (s->iop.status)
continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);
else if (s->iop.bio || verify(dc, &s->bio.bio))
continue_at_nobarrier(cl, cached_dev_read_done, bcache_wq);
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 1ff36875c2b3..7689176951ce 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -10,7 +10,7 @@ struct data_insert_op {
unsigned inode;
uint16_t write_point;
uint16_t write_prio;
- short error;
+ blk_status_t status;
union {
uint16_t flags;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index e57353e39168..fbc4f5412dec 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -271,7 +271,7 @@ static void write_super_endio(struct bio *bio)
{
struct cache *ca = bio->bi_private;
- bch_count_io_errors(ca, bio->bi_error, "writing superblock");
+ bch_count_io_errors(ca, bio->bi_status, "writing superblock");
closure_put(&ca->set->sb_write);
}
@@ -321,7 +321,7 @@ static void uuid_endio(struct bio *bio)
struct closure *cl = bio->bi_private;
struct cache_set *c = container_of(cl, struct cache_set, uuid_write);
- cache_set_err_on(bio->bi_error, c, "accessing uuids");
+ cache_set_err_on(bio->bi_status, c, "accessing uuids");
bch_bbio_free(bio, c);
closure_put(cl);
}
@@ -494,7 +494,7 @@ static void prio_endio(struct bio *bio)
{
struct cache *ca = bio->bi_private;
- cache_set_err_on(bio->bi_error, ca->set, "accessing priorities");
+ cache_set_err_on(bio->bi_status, ca->set, "accessing priorities");
bch_bbio_free(bio, ca->set);
closure_put(&ca->prio);
}
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 6ac2e48b9235..42c66e76f05e 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -167,7 +167,7 @@ static void dirty_endio(struct bio *bio)
struct keybuf_key *w = bio->bi_private;
struct dirty_io *io = w->private;
- if (bio->bi_error)
+ if (bio->bi_status)
SET_KEY_DIRTY(&w->key, false);
closure_put(&io->cl);
@@ -195,7 +195,7 @@ static void read_dirty_endio(struct bio *bio)
struct dirty_io *io = w->private;
bch_count_io_errors(PTR_CACHE(io->dc->disk.c, &w->key, 0),
- bio->bi_error, "reading dirty data from cache");
+ bio->bi_status, "reading dirty data from cache");
dirty_endio(bio);
}