diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/lpar.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 3126fc02e50b..74c59a1e9627 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -938,11 +938,19 @@ static long pSeries_lpar_hpte_find(unsigned long vpn, int psize, int ssize) hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, ssize); want_v = hpte_encode_avpn(vpn, psize, ssize); - /* Bolted entries are always in the primary group */ + /* + * We try to keep bolted entries always in primary hash + * But in some case we can find them in secondary too. + */ hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot = __pSeries_lpar_hpte_find(want_v, hpte_group); - if (slot < 0) - return -1; + if (slot < 0) { + /* Try in secondary */ + hpte_group = (~hash & htab_hash_mask) * HPTES_PER_GROUP; + slot = __pSeries_lpar_hpte_find(want_v, hpte_group); + if (slot < 0) + return -1; + } return hpte_group + slot; } |