]> git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/commit
arm64: Remove unnecessary ISBs from set_{pte,pmd,pud}
authorWill Deacon <will.deacon@arm.com>
Fri, 22 Jun 2018 08:31:16 +0000 (09:31 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 27 Jun 2018 17:26:20 +0000 (18:26 +0100)
commit24fe1b0efad4fcdd32ce46cffeab297f22581707
treefef443db1b23b984f674adaf095af6236e85e97d
parent429388682dc266e7a693f9c27e3aabd341d55343
arm64: Remove unnecessary ISBs from set_{pte,pmd,pud}

Commit 7f0b1bf04511 ("arm64: Fix barriers used for page table modifications")
fixed a reported issue with fixmap page-table entries not being visible
to the walker due to a missing DSB instruction. At the same time, it added
ISB instructions to the arm64 set_{pte,pmd,pud} functions, which are not
required by the architecture and make little sense in isolation.

Remove the redundant ISBs.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/pgtable.h