diff options
Diffstat (limited to 'fs/bio.c')
| -rw-r--r-- | fs/bio.c | 52 |
1 files changed, 32 insertions, 20 deletions
@@ -27,6 +27,7 @@ #include <linux/mempool.h> #include <linux/workqueue.h> #include <linux/cgroup.h> +#include <linux/aio.h> #include <scsi/sg.h> /* for struct sg_iovec */ #include <trace/events/block.h> @@ -1407,33 +1408,44 @@ void bio_flush_dcache_pages(struct bio *bi) EXPORT_SYMBOL(bio_flush_dcache_pages); #endif -/** - * bio_endio - end I/O on a bio - * @bio: bio - * @error: error, if any - * - * Description: - * bio_endio() will end I/O on the whole bio. bio_endio() is the - * preferred way to end I/O on a bio, it takes care of clearing - * BIO_UPTODATE on error. @error is 0 on success, and and one of the - * established -Exxxx (-EIO, for instance) error values in case - * something went wrong. No one should call bi_end_io() directly on a - * bio unless they own it and thus know that it has an end_io - * function. - **/ -void bio_endio(struct bio *bio, int error) +static inline void __bio_endio(struct bio *bio, struct batch_complete *batch) { - if (error) + if (bio->bi_error) clear_bit(BIO_UPTODATE, &bio->bi_flags); else if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) - error = -EIO; + bio->bi_error = -EIO; + + if (bio_flagged(bio, BIO_BATCH_ENDIO)) + bio->bi_batch_end_io(bio, bio->bi_error, batch); + else if (bio->bi_end_io) + bio->bi_end_io(bio, bio->bi_error); +} + +void bio_endio_batch(struct bio *bio, int error, struct batch_complete *batch) +{ + if (error) + bio->bi_error = error; trace_block_bio_complete(bio, error); - if (bio->bi_end_io) - bio->bi_end_io(bio, error); + if (batch) + bio_list_add(&batch->bio, bio); + else + __bio_endio(bio, batch); + +} +EXPORT_SYMBOL(bio_endio_batch); + +void batch_complete(struct batch_complete *batch) +{ + struct bio *bio; + + while ((bio = bio_list_pop(&batch->bio))) + __bio_endio(bio, batch); + + batch_complete_aio(batch); } -EXPORT_SYMBOL(bio_endio); +EXPORT_SYMBOL(batch_complete); void bio_pair_release(struct bio_pair *bp) { |