Yves-Alexis Perez reported commit 4ef9ad19e176 ("mm: huge_memory: don't force huge page alignment on 32 bit") didn't work for x86_32 [1]. It is because x86_32 uses CONFIG_X86_32 instead of CONFIG_32BIT.
!CONFIG_64BIT should cover all 32 bit machines.
[1] https://lore.kernel.org/linux-mm/CAHbLzkr1LwH3pcTgM+aGQ31ip2bKqiqEQ8=FQB+t2c...
Fixes: 4ef9ad19e176 ("mm: huge_memory: don't force huge page alignment on 32 bit") Reported-by: Yves-Alexis Perez corsac@debian.org Tested-By: Yves-Alexis Perez corsac@debian.org Cc: stable@vger.kernel.org [6.8+] Signed-off-by: Yang Shi yang@os.amperecomputing.com --- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 2120f7478e55..64f00aedf9af 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -857,7 +857,7 @@ static unsigned long __thp_get_unmapped_area(struct file *filp, loff_t off_align = round_up(off, size); unsigned long len_pad, ret, off_sub;
- if (IS_ENABLED(CONFIG_32BIT) || in_compat_syscall()) + if (!IS_ENABLED(CONFIG_64BIT) || in_compat_syscall()) return 0;
if (off_end <= off_align || (off_end - off_align) < size)