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mm/page_alloc.c: cleanups

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- make pageflag_names[] const

- remove null termination of pageflag_names[]

Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2012-05-29 15:06:44 -07:00 committed by Linus Torvalds
parent acc50c110c
commit 51300cef41
1 changed files with 3 additions and 4 deletions
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7
mm/page_alloc.c
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@ -5938,7 +5938,7 @@ bool is_free_buddy_page(struct page *page)
}
#endif
static struct trace_print_flags pageflag_names[] = {
static const struct trace_print_flags pageflag_names[] = {
{1UL << PG_locked, "locked" },
{1UL << PG_error, "error" },
{1UL << PG_referenced, "referenced" },
@ -5976,7 +5976,6 @@ static struct trace_print_flags pageflag_names[] = {
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
{1UL << PG_compound_lock, "compound_lock" },
#endif
{-1UL, NULL },
};
static void dump_page_flags(unsigned long flags)
@ -5985,14 +5984,14 @@ static void dump_page_flags(unsigned long flags)
unsigned long mask;
int i;
BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) - 1 != __NR_PAGEFLAGS);
BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS);
printk(KERN_ALERT "page flags: %#lx(", flags);
/* remove zone id */
flags &= (1UL << NR_PAGEFLAGS) - 1;
for (i = 0; pageflag_names[i].name && flags; i++) {
for (i = 0; i < ARRAY_SIZE(pageflag_names) && flags; i++) {
mask = pageflag_names[i].mask;
if ((flags & mask) != mask)