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ANDROID: GKI: mm: add struct vm_fault fields for SPECULATIVE_PAGE_FAULTS

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Two new fields in the struct vm_fault can't easily be excluded using
CONFIG_SPECULATIVE_PAGE_FAULTS. Add them as padding to reduce the
ABI diff between vendors which use SPECULATIVE_PAGE_FAULTS and ACK. This
allows vendors to pick the SPECULATIVE_PAGE_FAULTS feature and still be
ABI compatible with ACK.

Bug: 153715905
Test: build
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
(cherry picked from commit 47e3eb155848872a13ab6ef73a4d0eecac36ce66)
[surenb: kept only struct vm_fault changes and dropped the rest]
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I08dbe38f37fa3e8a0f96f71cb6b2dd8737221da5
Git-commit: a1db93d3a956eae02646e3269f5bb6f3c6fdc7c9
Git-Repo: https://android.googlesource.com/kernel/common/
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
This commit is contained in:
Suren Baghdasaryan 2020-05-04 20:51:02 +05:30 • committed by Vinayak Menon
commit e89b2b7f5b
2 changed files with 18232 additions and 18067 deletions
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37293
abi_gki_aarch64_5cfdde5ea8.xml
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2
include/linux/mm.h
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@ -451,6 +451,8 @@ struct vm_fault {
* page table to avoid allocation from
* atomic context.
*/
unsigned long vma_flags; /* Speculative Page Fault field */
pgprot_t vma_page_prot; /* Speculative Page Fault field */
};
/* page entry size for vm->huge_fault() */