diff mbox

[1/3] ceph: use calc_pages_for() in start_read()

Message ID 5134E4B8.5090908@inktank.com (mailing list archive)
State New, archived
Headers show

Commit Message

Alex Elder March 4, 2013, 6:15 p.m. UTC
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>
---
 fs/ceph/addr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

 	if (!pages)
diff mbox

Patch

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index cfef3e0..a284a1f 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -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;