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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-04-17 18:33:51 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-04-21 23:12:39 +1000 |
| commit | ef629cc5bf0543eb57d6e344ba776880ac35fd00 (patch) | |
| tree | 3713d40f241169a87dae20faae74ee4e744701ca /arch/powerpc/include/asm/book3s/64/mmu.h | |
| parent | powerpc/mm: Reduce memory usage for mm_context_t for radix (diff) | |
| download | wireguard-linux-ef629cc5bf0543eb57d6e344ba776880ac35fd00.tar.xz wireguard-linux-ef629cc5bf0543eb57d6e344ba776880ac35fd00.zip | |
powerc/mm/hash: Reduce hash_mm_context size
Allocate subpage protect related variables only if we use the feature.
This helps in reducing the hash related mm context struct by around 4K
Before the patch
sizeof(struct hash_mm_context) = 8288
After the patch
sizeof(struct hash_mm_context) = 4160
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/asm/book3s/64/mmu.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index e510e46b07ce..230a9dec7677 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -206,7 +206,7 @@ static inline struct slice_mask *mm_ctx_slice_mask_16g(mm_context_t *ctx) #ifdef CONFIG_PPC_SUBPAGE_PROT static inline struct subpage_prot_table *mm_ctx_subpage_prot(mm_context_t *ctx) { - return &ctx->hash_context->spt; + return ctx->hash_context->spt; } #endif |