mm: use macros from compiler.h instead of __attribute__((...))

To increase compiler portability there is <linux/compiler.h> which
provides convenience macros for various gcc constructs.  Eg: __weak for
__attribute__((weak)).  I've replaced all instances of gcc attributes with
the right macro in the memory management (/mm) subsystem.

[akpm@linux-foundation.org: while-we're-there consistency tweaks]
Signed-off-by: Gideon Israel Dsouza <gidisrael@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ed5072c64daa..c5aa43993364 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -13,6 +13,7 @@
 #include <linux/nodemask.h>
 #include <linux/pagemap.h>
 #include <linux/mempolicy.h>
+#include <linux/compiler.h>
 #include <linux/cpuset.h>
 #include <linux/mutex.h>
 #include <linux/bootmem.h>
@@ -3521,7 +3522,7 @@ follow_huge_pud(struct mm_struct *mm, unsigned long address,
 #else /* !CONFIG_ARCH_WANT_GENERAL_HUGETLB */
 
 /* Can be overriden by architectures */
-__attribute__((weak)) struct page *
+struct page * __weak
 follow_huge_pud(struct mm_struct *mm, unsigned long address,
                pud_t *pud, int write)
 {