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| author | Jiri Kosina <jkosina@suse.cz> | 2018-06-08 11:20:42 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2018-06-08 11:20:42 +0300 |
| commit | c1144d29f405ce1f4e6ede6482beb3d0d09750c6 (patch) | |
| tree | 0f9fe36a50005bae6ffe28a4f978e71273f5b1d1 /arch/arm/mm/mmap.c | |
| parent | d6c70a86bc72fabe7fc9d9533afdb46a56c16896 (diff) | |
| parent | a317e559574b2af62095b39792d168cb98cb2561 (diff) | |
| download | linux-c1144d29f405ce1f4e6ede6482beb3d0d09750c6.tar.xz | |
Merge branch 'for-4.18/alps' into for-linus
hid-alps driver cleanups wrt. t4_read_write_register() handling
from Christophe Jaillet
Diffstat (limited to 'arch/arm/mm/mmap.c')
| -rw-r--r-- | arch/arm/mm/mmap.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index eb1de66517d5..f866870db749 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -21,20 +21,20 @@ #define MIN_GAP (128*1024*1024UL) #define MAX_GAP ((TASK_SIZE)/6*5) -static int mmap_is_legacy(void) +static int mmap_is_legacy(struct rlimit *rlim_stack) { if (current->personality & ADDR_COMPAT_LAYOUT) return 1; - if (rlimit(RLIMIT_STACK) == RLIM_INFINITY) + if (rlim_stack->rlim_cur == RLIM_INFINITY) return 1; return sysctl_legacy_va_layout; } -static unsigned long mmap_base(unsigned long rnd) +static unsigned long mmap_base(unsigned long rnd, struct rlimit *rlim_stack) { - unsigned long gap = rlimit(RLIMIT_STACK); + unsigned long gap = rlim_stack->rlim_cur; if (gap < MIN_GAP) gap = MIN_GAP; @@ -180,18 +180,18 @@ unsigned long arch_mmap_rnd(void) return rnd << PAGE_SHIFT; } -void arch_pick_mmap_layout(struct mm_struct *mm) +void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack) { unsigned long random_factor = 0UL; if (current->flags & PF_RANDOMIZE) random_factor = arch_mmap_rnd(); - if (mmap_is_legacy()) { + if (mmap_is_legacy(rlim_stack)) { mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; mm->get_unmapped_area = arch_get_unmapped_area; } else { - mm->mmap_base = mmap_base(random_factor); + mm->mmap_base = mmap_base(random_factor, rlim_stack); mm->get_unmapped_area = arch_get_unmapped_area_topdown; } } |