diff options
| author | Qasim Ijaz <qasdev00@gmail.com> | 2025-02-15 12:52:49 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-02-21 15:33:57 +0100 |
| commit | 282f395244df3663dc24e97a86087431c9192513 (patch) | |
| tree | 47710a4c94a0c8ced0918ed04fb99aa551e50799 | |
| parent | 81256a50aa0fddefbf4849db8cad9f70c5167c04 (diff) | |
x86/mm: Replace open-coded gap bounding with clamp()
Rather than manually bounding gap between gap_min and gap_max,
use the well-known clamp() macro to make the code easier to read.
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250215125249.10729-1-qasdev00@gmail.com
| -rw-r--r-- | arch/x86/mm/mmap.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index b8a6ffffb451..5ed2109211da 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -84,7 +84,6 @@ static unsigned long mmap_base(unsigned long rnd, unsigned long task_size, { unsigned long gap = rlim_stack->rlim_cur; unsigned long pad = stack_maxrandom_size(task_size) + stack_guard_gap; - unsigned long gap_min, gap_max; /* Values close to RLIM_INFINITY can overflow. */ if (gap + pad > gap) @@ -94,13 +93,7 @@ static unsigned long mmap_base(unsigned long rnd, unsigned long task_size, * Top of mmap area (just below the process stack). * Leave an at least ~128 MB hole with possible stack randomization. */ - gap_min = SIZE_128M; - gap_max = (task_size / 6) * 5; - - if (gap < gap_min) - gap = gap_min; - else if (gap > gap_max) - gap = gap_max; + gap = clamp(gap, SIZE_128M, (task_size / 6) * 5); return PAGE_ALIGN(task_size - gap - rnd); } |