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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-09-26 07:57:24 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2022-09-28 19:22:10 +1000 |
| commit | 3e791d0f32b10eff9437822c6099c7a158560151 (patch) | |
| tree | a35405c9697bc8de6108c108c90437471efe3472 /arch/powerpc/mm | |
| parent | powerpc/64s: Add DEBUG_PAGEALLOC for radix (diff) | |
| download | linux-dev-3e791d0f32b10eff9437822c6099c7a158560151.tar.xz linux-dev-3e791d0f32b10eff9437822c6099c7a158560151.zip | |
powerpc/64s: Remove unneeded #ifdef CONFIG_DEBUG_PAGEALLOC in hash_utils
debug_pagealloc_enabled() is always defined and constant folds to
'false' when CONFIG_DEBUG_PAGEALLOC is not enabled.
Remove the #ifdefs, the code and associated static variables will
be optimised out by the compiler when CONFIG_DEBUG_PAGEALLOC is
not defined.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Nicholas Miehlbradt <nicholas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926075726.2846-2-nicholas@linux.ibm.com
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/book3s64/hash_utils.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c index ced1107b1677..4ec003d9e809 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -123,11 +123,8 @@ EXPORT_SYMBOL_GPL(mmu_slb_size); #ifdef CONFIG_PPC_64K_PAGES int mmu_ci_restrictions; #endif -#ifdef CONFIG_DEBUG_PAGEALLOC static u8 *linear_map_hash_slots; static unsigned long linear_map_hash_count; -static DEFINE_SPINLOCK(linear_map_hash_lock); -#endif /* CONFIG_DEBUG_PAGEALLOC */ struct mmu_hash_ops mmu_hash_ops; EXPORT_SYMBOL(mmu_hash_ops); @@ -427,11 +424,9 @@ repeat: break; cond_resched(); -#ifdef CONFIG_DEBUG_PAGEALLOC if (debug_pagealloc_enabled() && (paddr >> PAGE_SHIFT) < linear_map_hash_count) linear_map_hash_slots[paddr >> PAGE_SHIFT] = ret | 0x80; -#endif /* CONFIG_DEBUG_PAGEALLOC */ } return ret < 0 ? ret : 0; } @@ -1066,7 +1061,6 @@ static void __init htab_initialize(void) prot = pgprot_val(PAGE_KERNEL); -#ifdef CONFIG_DEBUG_PAGEALLOC if (debug_pagealloc_enabled()) { linear_map_hash_count = memblock_end_of_DRAM() >> PAGE_SHIFT; linear_map_hash_slots = memblock_alloc_try_nid( @@ -1076,7 +1070,6 @@ static void __init htab_initialize(void) panic("%s: Failed to allocate %lu bytes max_addr=%pa\n", __func__, linear_map_hash_count, &ppc64_rma_size); } -#endif /* CONFIG_DEBUG_PAGEALLOC */ /* create bolted the linear mapping in the hash table */ for_each_mem_range(i, &base, &end) { @@ -1988,6 +1981,8 @@ repeat: } #ifdef CONFIG_DEBUG_PAGEALLOC +static DEFINE_SPINLOCK(linear_map_hash_lock); + static void kernel_map_linear_page(unsigned long vaddr, unsigned long lmi) { unsigned long hash; |