Messages in this thread Patch in this message |  | | From | Christophe Leroy <> | Subject | [PATCH 3/3] powerpc/mm: remove unneccessary test in pgtable_cache_init() | Date | Mon, 13 Aug 2018 13:27:27 +0000 (UTC) |
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pgtable_cache_add() gracefully handles the case when a cache that size already exists by returning early with the following test:
if (PGT_CACHE(shift)) return; /* Already have a cache of this size */
It is then not needed to test the existance of the cache before.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- arch/powerpc/mm/init-common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c index 8fb182aaf87d..ebdb76cbb468 100644 --- a/arch/powerpc/mm/init-common.c +++ b/arch/powerpc/mm/init-common.c @@ -78,13 +78,13 @@ void pgtable_cache_init(void) { pgtable_cache_add(PGD_INDEX_SIZE); - if (PMD_CACHE_INDEX && !PGT_CACHE(PMD_CACHE_INDEX)) + if (PMD_CACHE_INDEX) pgtable_cache_add(PMD_CACHE_INDEX); /* * In all current configs, when the PUD index exists it's the * same size as either the pgd or pmd index except with THP enabled * on book3s 64 */ - if (PUD_CACHE_INDEX && !PGT_CACHE(PUD_CACHE_INDEX)) + if (PUD_CACHE_INDEX) pgtable_cache_add(PUD_CACHE_INDEX); } -- 2.13.3
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