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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2018-06-25 13:45:09 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-06-26 23:43:14 +1000 |
| commit | 941c06d58503b9f2718b20bc45ee7f1d701a1e1e (patch) | |
| tree | aa09401274f7fb7fe305cc910192fbda753a0685 /arch/powerpc/include | |
| parent | b2f82565f2caa1a5c1a26e68593eaef355fae3f4 (diff) | |
| download | linux-941c06d58503b9f2718b20bc45ee7f1d701a1e1e.tar.gz linux-941c06d58503b9f2718b20bc45ee7f1d701a1e1e.tar.bz2 linux-941c06d58503b9f2718b20bc45ee7f1d701a1e1e.zip | |
powerpc/mm/32: Fix pgtable_page_dtor call
Commit 667416f38554 ("powerpc/mm: Fix kernel crash on page table free")
added a call for pgtable_page_dtor in the rcu page table free routine. We missed
the fact that for 32 bit platforms we did call the 'dtor' early. Drop the extra
call for pgtable_page_dtor. We remove the call from __pte_free_tlb so that we
do the page table free and 'dtor' call together. This should help when we
switch these platforms to pte fragments.
Fixes: 667416f38554 ("powerpc/mm: Fix kernel crash on page table free")
Reported-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/32/pgalloc.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/nohash/32/pgalloc.h | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h index e4633803fe43..82e44b1a00ae 100644 --- a/arch/powerpc/include/asm/book3s/32/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h @@ -138,7 +138,6 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb, static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { - pgtable_page_dtor(table); pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_BOOK3S_32_PGALLOC_H */ diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h index 9de40eb614da..8825953c225b 100644 --- a/arch/powerpc/include/asm/nohash/32/pgalloc.h +++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h @@ -140,7 +140,6 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { tlb_flush_pgtable(tlb, address); - pgtable_page_dtor(table); pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_PGALLOC_32_H */ |