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| author | Mike Christie <mchristi@redhat.com> | 2018-07-23 14:07:49 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-07-30 23:17:53 -0400 |
| commit | c97840c84f5a4362a596a2751e9245a979377a16 (patch) | |
| tree | 84005dbdc1bd7fd4a7f0d9000e4f621a9e726fbb /tools/perf/scripts/python/check-perf-trace.py | |
| parent | dc335a995527fb1ee9ec5649162b22cd1ce728ee (diff) | |
scsi: tcmu: do not set max_blocks if data_bitmap has been setup
This patch prevents a bug where data_bitmap is allocated in
tcmu_configure_device, userspace changes the max_blocks setting, the device
is mapped to a LUN, then we try to access the data_bitmap based on the new
max_blocks limit which may now be out of range.
To prevent this, we just check if data_bitmap has been setup. If it has
then we fail the max_blocks update operation.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions