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[0/2] block: fix discard merge for single max discard segment

Message ID 20200811092134.2256095-1-ming.lei@redhat.com (mailing list archive)
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Series block: fix discard merge for single max discard segment | expand

Message

Ming Lei Aug. 11, 2020, 9:21 a.m. UTC 
Hello,

The 1st patch checks max discard segment limit in request merge code,
and one discard request failure issue is fixed for virtio_blk.

The 2nd patch fixes handling of single max discard segment for
virtio_blk, and potential memory corruption is fixed.


Ming Lei (2):
  block: respect queue limit of max discard segment
  block: virtio_blk: fix handling single range discard request

 block/blk-merge.c          | 10 ++++++++--
 drivers/block/virtio_blk.c | 23 +++++++++++++++--------
 2 files changed, 23 insertions(+), 10 deletions(-)

Cc: Christoph Hellwig <hch@lst.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Changpeng Liu <changpeng.liu@intel.com>
Cc: Daniel Verkamp <dverkamp@chromium.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>