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| author | John Pittman <jpittman@redhat.com> | 2019-04-05 17:42:45 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-04-06 10:51:08 -0600 |
| commit | 7ff684a683d777c4956fce93e60accbab2bd7696 (patch) | |
| tree | 28d71c37e524712b89d51d72a15586baa0661f0b /lib/hweight.c | |
| parent | fd9c40f64c514bdc585a21e2e33fa5f83ca8811b (diff) | |
| download | linux-stable-7ff684a683d777c4956fce93e60accbab2bd7696.tar.gz linux-stable-7ff684a683d777c4956fce93e60accbab2bd7696.tar.bz2 linux-stable-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 <jpittman@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib/hweight.c')
0 files changed, 0 insertions, 0 deletions