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| author | John Pittman <[email protected]> | 2019-04-05 21:42:45 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2019-04-06 16:51:08 +0000 |
| commit | 7ff684a683d777c4956fce93e60accbab2bd7696 (patch) | |
| tree | 28d71c37e524712b89d51d72a15586baa0661f0b /lib/string_helpers.c | |
| parent | block: Revert v5.0 blk_mq_request_issue_directly() changes (diff) | |
| download | kernel-7ff684a683d777c4956fce93e60accbab2bd7696.tar.gz kernel-7ff684a683d777c4956fce93e60accbab2bd7696.zip | |
null_blk: prevent crash from bad home_node value
At module load, if the selected home_node value is greater than
the available numa nodes, the system will crash in
__alloc_pages_nodemask() due to a bad paging request. Prevent this
user error crash by detecting the bad value, logging an error, and
setting g_home_node back to the default of NUMA_NO_NODE.
Signed-off-by: John Pittman <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions