On 19.01.21 11:57, Roger Pau Monne wrote:
This is inline with the specification described in blkif.h:* discard-granularity: should be set to the physical block size if node is not present. * discard-alignment, discard-secure: should be set to 0 if node not present. This was detected as QEMU would only create the discard-granularity node but not discard-alignment, and thus the setup done in blkfront_setup_discard would fail. Fix blkfront_setup_discard to not fail on missing nodes, and also fix blkif_set_queue_limits to set the discard granularity to the physical block size if none is specified in xenbus. Fixes: ed30bf317c5ce ('xen-blkfront: Handle discard requests.') Reported-by: Arthur Borsboom <arthurborsb...@gmail.com> Signed-off-by: Roger Pau Monné <roger....@citrix.com>
Reviewed-by: Juergen Gross <jgr...@suse.com> Juergen
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