Commit 883d50a0 authored by Mark Rutland's avatar Mark Rutland Committed by Catalin Marinas

arm64: simplify pgd_alloc

Currently pgd_alloc has a redundant NULL check in its return path that
can be removed with no ill effects. With that removed it's also possible
to return early and eliminate the new_pgd temporary variable.

This patch applies said modifications, making the logic of pgd_alloc
correspond 1-1 with that of pgd_free.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent bfb67a56
...@@ -32,17 +32,10 @@ ...@@ -32,17 +32,10 @@
pgd_t *pgd_alloc(struct mm_struct *mm) pgd_t *pgd_alloc(struct mm_struct *mm)
{ {
pgd_t *new_pgd;
if (PGD_SIZE == PAGE_SIZE) if (PGD_SIZE == PAGE_SIZE)
new_pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL); return (pgd_t *)get_zeroed_page(GFP_KERNEL);
else else
new_pgd = kzalloc(PGD_SIZE, GFP_KERNEL); return kzalloc(PGD_SIZE, GFP_KERNEL);
if (!new_pgd)
return NULL;
return new_pgd;
} }
void pgd_free(struct mm_struct *mm, pgd_t *pgd) void pgd_free(struct mm_struct *mm, pgd_t *pgd)
......
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