diff options
| author | Roger Pau Monne <[email protected]> | 2021-01-19 11:57:27 +0100 |
|---|---|---|
| committer | Juergen Gross <[email protected]> | 2021-01-26 10:26:00 +0100 |
| commit | 0549cd67b01016b579047bce045b386202a8bcfc (patch) | |
| tree | 64d08332ae2d20632057818b386a335a3195475f /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | bd9dcef67ffcae2de49e319fba349df76472fd10 (diff) | |
xen-blkfront: allow discard-* nodes to be optional
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 <[email protected]>
Signed-off-by: Roger Pau Monné <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Tested-By: Arthur Borsboom <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions