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| author | Wei Yang <richardw.yang@linux.intel.com> | 2019-01-22 03:48:09 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-02-12 19:18:44 +0100 |
| commit | f101ada7da6551127d192c2f1742c1e9e0f62799 (patch) | |
| tree | dcb5fdae196c8c5ed566b074c56d2c045d5a91c9 /drivers/nvdimm | |
| parent | Linux 5.0-rc4 (diff) | |
| download | linux-f101ada7da6551127d192c2f1742c1e9e0f62799.tar.xz linux-f101ada7da6551127d192c2f1742c1e9e0f62799.zip | |
libnvdimm, pfn: Fix over-trim in trim_pfn_device()
When trying to see whether current nd_region intersects with others,
trim_pfn_device() has already calculated the *size* to be expanded to
SECTION size.
Do not double append 'adjust' to 'size' when calculating whether the end
of a region collides with the next pmem region.
Fixes: ae86cbfef381 "libnvdimm, pfn: Pad pfn namespaces relative to other regions"
Cc: <stable@vger.kernel.org>
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm')
| -rw-r--r-- | drivers/nvdimm/pfn_devs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index 6f22272e8d80..040bbd9c367e 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -678,7 +678,7 @@ static void trim_pfn_device(struct nd_pfn *nd_pfn, u32 *start_pad, u32 *end_trun if (region_intersects(start, size, IORESOURCE_SYSTEM_RAM, IORES_DESC_NONE) == REGION_MIXED || !IS_ALIGNED(end, nd_pfn->align) - || nd_region_conflict(nd_region, start, size + adjust)) + || nd_region_conflict(nd_region, start, size)) *end_trunc = end - phys_pmem_align_down(nd_pfn, end); } |