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authorBalbir Singh <bsingharora@gmail.com>2017-05-02 15:17:04 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2017-06-05 19:03:10 +1000
commitde3b87611dd1f3c00f4e42fe298457260ea781e0 (patch)
tree77fc83dc2b9ac76f71600757674d959c4a6a33fe /net/bridge/br_stp_if.c
parentc5cee6421cd651446b93c231f0ab8ff2530ba25d (diff)
powerpc/mm/book(e)(3s)/64: Add page table accounting
Introduce a helper pgtable_gfp_flags() which just returns the current gfp flags and adds __GFP_ACCOUNT to account for page table allocation. The generic helper is added to include/asm/pgalloc.h and has two variants - WARNING ugly bits ahead 1. If the header is included from a module, no check for mm == &init_mm is done, since init_mm is not exported 2. For kernel includes, the check is done and required see (3e79ec7 arch: x86: charge page tables to kmemcg) The fundamental assumption is that no module should be doing pgd/pud/pmd and pte alloc's on behalf of init_mm directly. NOTE: This adds an overhead to pmd/pud/pgd allocations similar to x86. The other alternative was to implement pmd_alloc_kernel/pud_alloc_kernel and pgd_alloc_kernel with their offset variants. For 4k page size, pte_alloc_one no longer calls pte_alloc_one_kernel. Signed-off-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'net/bridge/br_stp_if.c')
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