mm/huge_memory.c: fix stale comments of transparent_hugepage_flags
mm/huge_memory.c: fix stale comments of transparent_hugepage_flags

Since commit 13ece886d99c ("thp: transparent hugepage config choice"),
transparent hugepage support is disabled by default, and
TRANSPARENT_HUGEPAGE_ALWAYS is configured when TRANSPARENT_HUGEPAGE=y.

And since commit d39d33c332c6 ("thp: enable direct defrag"), defrag is
enable for all transparent hugepage page faults by default, not only in
MADV_HUGEPAGE regions.

Signed-off-by: Jianguo Wu <bfa600f2f37bdb58cd7013a13133683dd75e8c4c@huawei.com>
Reviewed-by: Wanpeng Li <86d530c4a0b810dc887df1e4e084ed44c9b7acac@linux.vnet.ibm.com>
Acked-by: Kirill A. Shutemov <eec72676ad9a62f2727dfed6d270d98c0d02adec@linux.intel.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs