| Message ID | 20190315094335.30970-1-aneesh.kumar@linux.ibm.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | arch/powerpc/dax: Add MAP_SYNC mmap flag | expand |
| Context | Check | Description |
|---|---|---|
| snowpatch_ozlabs/apply_patch | success | Successfully applied on branch next (de3c83c2fd2b87cf68214eda76dfa66989d78cb6) |
| snowpatch_ozlabs/build-ppc64le | success | Build succeeded |
| snowpatch_ozlabs/build-ppc64be | success | Build succeeded |
| snowpatch_ozlabs/build-ppc64e | success | Build succeeded |
| snowpatch_ozlabs/build-pmac32 | success | Build succeeded |
| snowpatch_ozlabs/checkpatch | warning | total: 0 errors, 1 warnings, 0 checks, 7 lines checked |
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h index 65065ce32814..e08cc5fc9d2f 100644 --- a/arch/powerpc/include/uapi/asm/mman.h +++ b/arch/powerpc/include/uapi/asm/mman.h @@ -29,6 +29,7 @@ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ #define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ #define MAP_HUGETLB 0x40000 /* create a huge page mapping */ +#define MAP_SYNC 0x80000 /* perform synchronous page faults for the mapping */ /* Override any generic PKEY permission defines */ #define PKEY_DISABLE_EXECUTE 0x4
This enables support for synchronous DAX fault on powerpc The generic changes are added as part of commit b6fb293f2497 ("mm: Define MAP_SYNC and VM_SYNC flags") Without this, mmap returns EOPNOTSUPP for MAP_SYNC with MAP_SHARED_VALIDATE Fixes: b5beae5e224f ("powerpc/pseries: Add driver for PAPR SCM regions") Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> --- arch/powerpc/include/uapi/asm/mman.h | 1 + 1 file changed, 1 insertion(+)