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| author | Christoph Hellwig | 2016-03-11 17:34:51 +0100 |
|---|---|---|
| committer | Jens Axboe | 2016-03-14 15:55:22 +0100 |
| commit | 38f8baae890561203ba6093f76b14576ce9b271b (patch) | |
| tree | 14d77bee87ae29c2cfdf9cc6734e75768b771478 /block/bio.c | |
| parent | block: don't unecessarily clobber bi_error for chained bios (diff) | |
| download | kernel-qcow2-linux-38f8baae890561203ba6093f76b14576ce9b271b.tar.gz kernel-qcow2-linux-38f8baae890561203ba6093f76b14576ce9b271b.tar.xz kernel-qcow2-linux-38f8baae890561203ba6093f76b14576ce9b271b.zip | |
block: factor out chained bio completion
Factor common code between bio_chain_endio and bio_endio into a common
helper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/block/bio.c b/block/bio.c index 282ca2e5aaf2..67e51ace1b77 100644 --- a/block/bio.c +++ b/block/bio.c @@ -296,14 +296,19 @@ void bio_reset(struct bio *bio) } EXPORT_SYMBOL(bio_reset); -static void bio_chain_endio(struct bio *bio) +static struct bio *__bio_chain_endio(struct bio *bio) { struct bio *parent = bio->bi_private; if (!parent->bi_error) parent->bi_error = bio->bi_error; - bio_endio(parent); bio_put(bio); + return parent; +} + +static void bio_chain_endio(struct bio *bio) +{ + bio_endio(__bio_chain_endio(bio)); } /* @@ -1753,12 +1758,7 @@ void bio_endio(struct bio *bio) * pointers also disables gcc's sibling call optimization. */ if (bio->bi_end_io == bio_chain_endio) { - struct bio *parent = bio->bi_private; - - if (!parent->bi_error) - parent->bi_error = bio->bi_error; - bio_put(bio); - bio = parent; + bio = __bio_chain_endio(bio); } else { if (bio->bi_end_io) bio->bi_end_io(bio); |