luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

libnvdimm/label: Remove the dpa align check

Browse Source 
There's no strict requirement why slot_valid() needs to check for page alignment
and it would seem to actively hurt cross-page-size compatibility. Let's
delete the check and rely on checksum validation.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-6-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Aneesh Kumar K.V 2019-09-05 21:16:01 +05:30 committed by Dan Williams
parent edbb52c244
commit 047e0eff1f
1 changed files with 0 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/nvdimm/label.c
View File

@ -353,11 +353,6 @@ static bool slot_valid(struct nvdimm_drvdata *ndd,
if (slot != __le32_to_cpu(nd_label->slot))
return false;
/* check that DPA allocations are page aligned */
if ((__le64_to_cpu(nd_label->dpa)
| __le64_to_cpu(nd_label->rawsize)) % SZ_4K)
return false;
/* check checksum */
if (namespace_label_has(ndd, checksum)) {
u64 sum, sum_save;