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arm64: kexec: Add comment to explain use of __flush_icache_range()
authorWill Deacon <will.deacon@arm.com>
Tue, 31 Jul 2018 11:09:03 +0000 (12:09 +0100)
committerWill Deacon <will.deacon@arm.com>
Tue, 31 Jul 2018 11:10:38 +0000 (12:10 +0100)
commitdcab90d90935f990407c86b671a7f1ac285d106c
tree6e5176cd76acbbd9882b50b921d66fb9122771f7tree | snapshot
parenteab1cecc1223378fee700ab6acebf0f39fa6da81commit | diff
arm64: kexec: Add comment to explain use of __flush_icache_range()

Now that we understand the deadlock arising from flush_icache_range()
on the kexec crash kernel path, add a comment to justify the use of
__flush_icache_range() here.

Reported-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/kernel/machine_kexec.c diff | blob | history
Domain: System / Kernel;