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(parent: 7011018) | patch
powerc/mm/hash: Reduce hash_mm_context size
authorAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Wed, 17 Apr 2019 13:03:51 +0000 (18:33 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Sun, 21 Apr 2019 13:12:39 +0000 (23:12 +1000)
commitef629cc5bf0543eb57d6e344ba776880ac35fd00
tree3713d40f241169a87dae20faae74ee4e744701catree | snapshot
parent701101865f5d3e268281ce7a254eb4a97d16cbdccommit | diff
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>
arch/powerpc/include/asm/book3s/64/mmu-hash.h diff | blob | blame | history
arch/powerpc/include/asm/book3s/64/mmu.h diff | blob | blame | history
arch/powerpc/mm/hash_utils_64.c diff | blob | blame | history
arch/powerpc/mm/mmu_context_book3s64.c diff | blob | blame | history
arch/powerpc/mm/subpage-prot.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git