arm64: vdso: Use GFP_KERNEL for allocating compat vdso and signal pages

There's no need to allocate the compat vDSO and signal pages using
GFP_ATOMIC allocations, so use GFP_KERNEL instead.

Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210318170738.7756-2-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index cee5d04..2d057a4 100644 (file)
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -299,7 +299,7 @@ static int aarch32_alloc_kuser_vdso_page(void)
        if (!IS_ENABLED(CONFIG_KUSER_HELPERS))
                return 0;
 
-       vdso_page = get_zeroed_page(GFP_ATOMIC);
+       vdso_page = get_zeroed_page(GFP_KERNEL);
        if (!vdso_page)
                return -ENOMEM;
 
@@ -316,7 +316,7 @@ static int aarch32_alloc_sigpage(void)
        int sigret_sz = __aarch32_sigret_code_end - __aarch32_sigret_code_start;
        unsigned long sigpage;
 
-       sigpage = get_zeroed_page(GFP_ATOMIC);
+       sigpage = get_zeroed_page(GFP_KERNEL);
        if (!sigpage)
                return -ENOMEM;