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authorJens Axboe <axboe@kernel.dk>2021-10-15 16:55:05 -0600
committerJens Axboe <axboe@kernel.dk>2021-10-19 05:55:52 -0600
commit6155631a0c3b7ca795a0edb44894e58dc3e3d798 (patch)
tree77ae4a338aafacca741412f604738bf4f065024f
parente028f167eca5fc56938e6c1680d40eed0bc39e80 (diff)
block: align blkdev_dio inlined bio to a cacheline
We get all sorts of unreliable and funky results since the bio is designed to align on a cacheline, which it does not when inlined like this. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/fops.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/fops.c b/block/fops.c
index 2c43e493e37c..21d25ee0e4bf 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -137,7 +137,7 @@ struct blkdev_dio {
size_t size;
atomic_t ref;
unsigned int flags;
- struct bio bio;
+ struct bio bio ____cacheline_aligned_in_smp;
};
static struct bio_set blkdev_dio_pool;