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bcache: don't embed 'return' statements in closure macros

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This is horribly confusing, it breaks the flow of the code without
it being apparent in the caller.

Signed-off-by: Jens Axboe <axboe@fb.com>
Acked-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Jens Axboe 2015-03-06 08:37:46 -07:00
parent 06b285bd11
commit 77b5a08427
4 changed files with 14 additions and 6 deletions
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3
drivers/md/bcache/closure.h
View File

@ -320,7 +320,6 @@ static inline void closure_wake_up(struct closure_waitlist *list)
do { \
set_closure_fn(_cl, _fn, _wq); \
closure_sub(_cl, CLOSURE_RUNNING + 1); \
return; \
} while (0)
/**
@ -349,7 +348,6 @@ do { \
do { \
set_closure_fn(_cl, _fn, _wq); \
closure_queue(_cl); \
return; \
} while (0)
/**
@ -365,7 +363,6 @@ do { \
do { \
set_closure_fn(_cl, _destructor, NULL); \
closure_sub(_cl, CLOSURE_RUNNING - CLOSURE_DESTRUCTOR + 1); \
return; \
} while (0)
/**

1
drivers/md/bcache/io.c
View File

@ -105,6 +105,7 @@ void bch_generic_make_request(struct bio *bio, struct bio_split_pool *p)
} while (n != bio);
continue_at(&s->cl, bch_bio_submit_split_done, NULL);
return;
submit:
generic_make_request(bio);
}

2
drivers/md/bcache/journal.c
View File

@ -592,12 +592,14 @@ static void journal_write_unlocked(struct closure *cl)
if (!w->need_write) {
closure_return_with_destructor(cl, journal_write_unlock);
return;
} else if (journal_full(&c->journal)) {
journal_reclaim(c);
spin_unlock(&c->journal.lock);
btree_flush_write(c);
continue_at(cl, journal_write, system_wq);
return;
}
c->journal.blocks_free -= set_blocks(w->data, block_bytes(c));

14
drivers/md/bcache/request.c
View File

@ -88,8 +88,10 @@ static void bch_data_insert_keys(struct closure *cl)
if (journal_ref)
atomic_dec_bug(journal_ref);
if (!op->insert_data_done)
if (!op->insert_data_done) {
continue_at(cl, bch_data_insert_start, op->wq);
return;
}
bch_keylist_free(&op->insert_keys);
closure_return(cl);
@ -216,8 +218,10 @@ static void bch_data_insert_start(struct closure *cl)
/* 1 for the device pointer and 1 for the chksum */
if (bch_keylist_realloc(&op->insert_keys,
3 + (op->csum ? 1 : 0),
op->c))
op->c)) {
continue_at(cl, bch_data_insert_keys, op->wq);
return;
}
k = op->insert_keys.top;
bkey_init(k);
@ -255,6 +259,7 @@ static void bch_data_insert_start(struct closure *cl)
op->insert_data_done = true;
continue_at(cl, bch_data_insert_keys, op->wq);
return;
err:
/* bch_alloc_sectors() blocks if s->writeback = true */
BUG_ON(op->writeback);
@ -576,8 +581,10 @@ static void cache_lookup(struct closure *cl)
ret = bch_btree_map_keys(&s->op, s->iop.c,
&KEY(s->iop.inode, bio->bi_iter.bi_sector, 0),
cache_lookup_fn, MAP_END_KEY);
if (ret == -EAGAIN)
if (ret == -EAGAIN) {
continue_at(cl, cache_lookup, bcache_wq);
return;
}
closure_return(cl);
}
@ -1085,6 +1092,7 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
continue_at_nobarrier(&s->cl,
flash_dev_nodata,
bcache_wq);
return;
} else if (rw) {
bch_keybuf_check_overlapping(&s->iop.c->moving_gc_keys,
&KEY(d->id, bio->bi_iter.bi_sector, 0),