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authorMichael Ellerman <mpe@ellerman.id.au>2016-01-09 08:25:01 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2016-01-09 08:28:44 +1100
commitc33e54fafacaf83b3e345aae0e241c1f152224a0 (patch)
treef79b1f6317b7375076b72267ed24ac686eb731e4 /arch/powerpc
parent7b8ad495d59280b634a7b546f4cdf58cf4d65f61 (diff)
downloadlinux-c33e54fafacaf83b3e345aae0e241c1f152224a0.tar.bz2
powerpc: Fix build break due to paca mm_context_t changes
Commit 2fc251a8dda5 ("powerpc: Copy only required pieces of the mm_context_t to the paca") broke the build for CONFIG_PPC_STD_MMU_64=y and CONFIG_PPC_MM_SLICES=n. That only happens for a kernel built with 4K pages and HUGETLB disabled, which is why we missed it. Fix it by adding a mm_ctx_user_psize member to the paca and populating it in the appropriate places. Fixes: 2fc251a8dda5 ("powerpc: Copy only required pieces of the mm_context_t to the paca") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/paca.h2
-rw-r--r--arch/powerpc/mm/hash_utils_64.c2
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index ef78c288c712..546540b91095 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -138,6 +138,7 @@ struct paca_struct {
u64 mm_ctx_low_slices_psize;
unsigned char mm_ctx_high_slices_psize[SLICE_ARRAY_SIZE];
#else
+ u16 mm_ctx_user_psize;
u16 mm_ctx_sllp;
#endif
#endif
@@ -212,6 +213,7 @@ static inline void copy_mm_to_paca(mm_context_t *context)
memcpy(&get_paca()->mm_ctx_high_slices_psize,
&context->high_slices_psize, SLICE_ARRAY_SIZE);
#else
+ get_paca()->mm_ctx_user_psize = context->user_psize;
get_paca()->mm_ctx_sllp = context->sllp;
#endif
}
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index db744576d730..ba59d5977f34 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -866,7 +866,7 @@ static unsigned int get_paca_psize(unsigned long addr)
#else
unsigned int get_paca_psize(unsigned long addr)
{
- return get_paca()->context.user_psize;
+ return get_paca()->mm_ctx_user_psize;
}
#endif