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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-02-22 18:46:03 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-02-23 17:42:11 +0000 |
| commit | a92405f082d43267575444a6927085e4c8a69e4e (patch) | |
| tree | ba1521809b1a95c228956628863c8d454cd0dff7 /arch/arm64/Kconfig | |
| parent | 70c8abc28762d04e36c92e07eee2ce6ab41049cb (diff) | |
| download | linux-stable-a92405f082d43267575444a6927085e4c8a69e4e.tar.gz | |
arm64: mm: only perform memstart_addr sanity check if DEBUG_VM
Checking whether memstart_addr has been assigned every time it is
referenced adds a branch instruction that may hurt performance if
the reference in question occurs on a hot path. So only perform the
check if CONFIG_DEBUG_VM=y.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[catalin.marinas@arm.com: replaced #ifdef with VM_BUG_ON]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
0 files changed, 0 insertions, 0 deletions