fs/buffer.c: remove redundant initialization in alloc_page_buffers()

buffer_head comes from kmem_cache_zalloc(), no need to zero its fields. Signed-off-by: Yan Hong <clouds.yan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
git-mirror · Dec 13, 2012 · 02c0ab6 · 02c0ab6
1 parent a3f3c29
commit 02c0ab6
Showing 1 changed file with 0 additions and 3 deletions.
diff --git a/fs/buffer.c b/fs/buffer.c
@@ -849,13 +849,10 @@ struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,
 		if (!bh)
 			goto no_grow;
 
-		bh->b_bdev = NULL;
 		bh->b_this_page = head;
 		bh->b_blocknr = -1;
 		head = bh;
 
-		bh->b_state = 0;
-		atomic_set(&bh->b_count, 0);
 		bh->b_size = size;
 
 		/* Link the buffer to its page */