From f2f47d0ef72c30622e62471903ea19446ea79ee2 Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 6 Apr 2022 08:01:24 +0200 Subject: s390/mmap: increase stack/mmap gap to 128MB This basically reverts commit 9e78a13bfb16 ("[S390] reduce miminum gap between stack and mmap_base"). 32MB is not enough space between stack and mmap for some programs. Given that compat task aren't common these days, lets revert back to 128MB. Signed-off-by: Sven Schnelle Reviewed-by: Heiko Carstens Signed-off-by: Heiko Carstens --- arch/s390/mm/mmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/s390/mm') diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index e54f928503c5..d545f5c39f7e 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -58,9 +58,9 @@ static inline unsigned long mmap_base(unsigned long rnd, /* * Top of mmap area (just below the process stack). - * Leave at least a ~32 MB hole. + * Leave at least a ~128 MB hole. */ - gap_min = 32 * 1024 * 1024UL; + gap_min = SZ_128M; gap_max = (STACK_TOP / 6) * 5; if (gap < gap_min) -- cgit v1.2.3-59-g8ed1b