When building bcache as a module, the following errors are silenced
by this patch:
ERROR: "call_rwsem_down_read_failed" [block/bcache.ko] undefined!
ERROR: "call_rwsem_wake" [block/bcache.ko] undefined!
There may be implications of the extra code introduced by this, but
I am not familiar with these functions. Though I can confirm that
the resulting build seems to work.
---
block/bcache.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/bcache.c b/block/bcache.c
index a2dbd1e..faaf75e 100644
--- a/block/bcache.c
+++ b/block/bcache.c
@@ -5561,7 +5561,7 @@ static void bio_complete(struct closure *cl)
keylist_free(&s->op.keys);
if (s->op.insert_type & INSERT_WRITE)
- __up_read(&d->writeback_lock);
+ up_read(&d->writeback_lock);
if (s->cache_bio) {
int i;
@@ -5911,7 +5911,7 @@ static void request_write(struct search *s)
s->cl.fn = bio_complete;
s->op.insert_type = INSERT_WRITE;
check_should_skip(s);
- __down_read(&s->op.d->writeback_lock);
+ down_read(&s->op.d->writeback_lock);
if (in_writeback(s->op.d, bio->bi_sector, bio_sectors(bio))) {
s->skip = false;
--
1.7.4.4
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