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| author | Mark Rutland <mark.rutland@arm.com> | 2014-02-05 10:24:13 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-02-05 10:45:07 +0000 |
| commit | 883d50a0ed403446437444a495356ce31e1197a3 (patch) | |
| tree | 6e2e6080ba260e114344cf25314c80e4439b2303 | |
| parent | bfb67a5606376bb32cb6f93dc05cda2e8c2038a5 (diff) | |
| download | linux-883d50a0ed403446437444a495356ce31e1197a3.tar.gz linux-883d50a0ed403446437444a495356ce31e1197a3.tar.bz2 linux-883d50a0ed403446437444a495356ce31e1197a3.zip | |
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: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/mm/pgd.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c index 7083cdada657..62c6101df260 100644 --- a/arch/arm64/mm/pgd.c +++ b/arch/arm64/mm/pgd.c @@ -32,17 +32,10 @@ pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *new_pgd; - if (PGD_SIZE == PAGE_SIZE) - new_pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL); + return (pgd_t *)get_zeroed_page(GFP_KERNEL); else - new_pgd = kzalloc(PGD_SIZE, GFP_KERNEL); - - if (!new_pgd) - return NULL; - - return new_pgd; + return kzalloc(PGD_SIZE, GFP_KERNEL); } void pgd_free(struct mm_struct *mm, pgd_t *pgd) |