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| author | Greg Edwards | 2018-07-26 21:52:54 +0200 |
|---|---|---|
| committer | Jens Axboe | 2018-07-26 23:49:43 +0200 |
| commit | cdcdcaae8450a975e7d07e1bfec21f9b8c016d0c (patch) | |
| tree | 27016d6616006a8f953e2eabec8616853aa1541b /mm/readahead.c | |
| parent | block: move bio_integrity_{intervals,bytes} into blkdev.h (diff) | |
| download | kernel-qcow2-linux-cdcdcaae8450a975e7d07e1bfec21f9b8c016d0c.tar.gz kernel-qcow2-linux-cdcdcaae8450a975e7d07e1bfec21f9b8c016d0c.tar.xz kernel-qcow2-linux-cdcdcaae8450a975e7d07e1bfec21f9b8c016d0c.zip | |
scsi: virtio_scsi: fix pi_bytes{out,in} on 4 KiB block size devices
When the underlying device is a 4 KiB logical block size device with a
protection interval exponent of 0, i.e. 4096 bytes data + 8 bytes PI, the
driver miscalculates the pi_bytes{out,in} by a factor of 8x (64 bytes).
This leads to errors on all reads and writes on 4 KiB logical block size
devices when CONFIG_BLK_DEV_INTEGRITY is enabled and the
VIRTIO_SCSI_F_T10_PI feature bit has been negotiated.
Fixes: e6dc783a38ec0 ("virtio-scsi: Enable DIF/DIX modes in SCSI host LLD")
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'mm/readahead.c')
0 files changed, 0 insertions, 0 deletions