Commit cf7b7e14 authored Mar 01, 2013 by Alex Elder Committed by Sage Weil May 01, 2013

ceph: use calc_pages_for() in start_read()



There's a spot that computes the number of pages to allocate for a
page-aligned length by just shifting it.  Use calc_pages_for()
instead, to be consistent with usage everywhere else.  The result
is the same.

The reason for this is to make it clearer in an upcoming patch that
this calculation is duplicated.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

parent 54ae0756

fs/ceph/addr.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -314,7 +314,7 @@ static int start_read(struct inode inode, struct list_head page_list, int max)
		return PTR_ERR(req);

		/* build page vector */
		nr_pages = len >> PAGE_CACHE_SHIFT;
		nr_pages = calc_pages_for(0, len);
		pages = kmalloc(sizeof(pages) nr_pages, GFP_NOFS);
		ret = -ENOMEM;
		if (!pages)