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-rw-r--r--block/blk-core.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index f0640d7f800f..4d54e9e9951c 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1428,11 +1428,11 @@ static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors)
* bi_sector for remaps as it sees fit. So the values of these fields
* should NOT be depended on after the call to generic_make_request.
*/
-static inline void __generic_make_request(struct bio *bio)
+inline void __generic_make_request(struct bio *bio)
{
struct request_queue *q;
sector_t old_sector;
- int ret, nr_sectors = bio_sectors(bio);
+ int ret = 1, nr_sectors = bio_sectors(bio);
dev_t old_dev;
int err = -EIO;
@@ -1505,7 +1505,10 @@ static inline void __generic_make_request(struct bio *bio)
trace_block_bio_queue(q, bio);
- ret = q->make_request_fn(q, bio);
+ if (bio->bi_bdev->bd_cache_fn)
+ ret = bio->bi_bdev->bd_cache_fn(q, bio);
+ if (ret)
+ ret = q->make_request_fn(q, bio);
} while (ret);
return;
@@ -1513,6 +1516,7 @@ static inline void __generic_make_request(struct bio *bio)
end_io:
bio_endio(bio, err);
}
+EXPORT_SYMBOL_GPL(__generic_make_request);
/*
* We only want one ->make_request_fn to be active at a time,