diff options
| author | Huaisheng Ye <[email protected]> | 2018-07-30 15:15:44 +0800 |
|---|---|---|
| committer | Dave Jiang <[email protected]> | 2018-07-30 09:33:03 -0700 |
| commit | 036a82ca90328960d66b7a5c0e1908475d534d62 (patch) | |
| tree | 50053f26cf4512ba0bdcc9e305d2696d8d0641de /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 46a590cde0bd17cc983e40e74c195311cc8ba555 (diff) | |
s390, dcssblk: kaddr and pfn can be NULL to ->direct_access()
dcssblk_direct_access() needs to check the validity of pointers kaddr
and pfn for NULL assignment. If anyone equals to NULL, it doesn't need
to calculate the value.
If either of them is equal to NULL, that is to say callers may
have no need for kaddr or pfn, so this patch is prepared for allowing
them to pass in NULL instead of having to pass in a pointer or local
variable that they then just throw away.
Signed-off-by: Huaisheng Ye <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Acked-by: Martin Schwidefsky <[email protected]>
Signed-off-by: Dave Jiang <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions