diff options
| author | Yang Shi <[email protected]> | 2024-07-12 08:58:55 -0700 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-07-26 14:33:09 -0700 |
| commit | d9592025000b3cf26c742f3505da7b83aedc26d5 (patch) | |
| tree | 1a12153de00dc1710e21eb8f827a368afc9c4758 | |
| parent | 4cd7ba16a0afb36550eed7690e73d3e7a743fa96 (diff) | |
mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines
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+t2c3dhNKNHA@mail.gmail.com/
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 4ef9ad19e176 ("mm: huge_memory: don't force huge page alignment on 32 bit")
Signed-off-by: Yang Shi <[email protected]>
Reported-by: Yves-Alexis Perez <[email protected]>
Tested-by: Yves-Alexis Perez <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Cc: Ben Hutchings <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Salvatore Bonaccorso <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Cc: <[email protected]> [6.8+]
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | mm/huge_memory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index f9696c94e211..04b72912035d 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -877,7 +877,7 @@ 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) |