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-rw-r--r--fs/ceph/addr.c33
1 files changed, 20 insertions, 13 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index c117c51741d5..45745aae4786 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -238,13 +238,16 @@ static void finish_read(struct ceph_osd_request *req, struct ceph_msg *msg)
struct inode *inode = req->r_inode;
int rc = req->r_result;
int bytes = le32_to_cpu(msg->hdr.data_len);
+ int num_pages;
int i;
dout("finish_read %p req %p rc %d bytes %d\n", inode, req, rc, bytes);
/* unlock all pages, zeroing any data we didn't read */
BUG_ON(req->r_data_in.type != CEPH_OSD_DATA_TYPE_PAGES);
- for (i = 0; i < req->r_data_in.num_pages; i++) {
+ num_pages = calc_pages_for((u64)req->r_data_in.alignment,
+ (u64)req->r_data_in.length);
+ for (i = 0; i < num_pages; i++) {
struct page *page = req->r_data_in.pages[i];
if (bytes < (int)PAGE_CACHE_SIZE) {
@@ -340,7 +343,7 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max)
}
req->r_data_in.type = CEPH_OSD_DATA_TYPE_PAGES;
req->r_data_in.pages = pages;
- req->r_data_in.num_pages = nr_pages;
+ req->r_data_in.length = len;
req->r_data_in.alignment = 0;
req->r_callback = finish_read;
req->r_inode = inode;
@@ -555,6 +558,7 @@ static void writepages_finish(struct ceph_osd_request *req,
struct ceph_inode_info *ci = ceph_inode(inode);
unsigned wrote;
struct page *page;
+ int num_pages;
int i;
struct ceph_snap_context *snapc = req->r_snapc;
struct address_space *mapping = inode->i_mapping;
@@ -565,6 +569,8 @@ static void writepages_finish(struct ceph_osd_request *req,
unsigned issued = ceph_caps_issued(ci);
BUG_ON(req->r_data_out.type != CEPH_OSD_DATA_TYPE_PAGES);
+ num_pages = calc_pages_for((u64)req->r_data_out.alignment,
+ (u64)req->r_data_out.length);
if (rc >= 0) {
/*
* Assume we wrote the pages we originally sent. The
@@ -572,7 +578,7 @@ static void writepages_finish(struct ceph_osd_request *req,
* raced with a truncation and was adjusted at the osd,
* so don't believe the reply.
*/
- wrote = req->r_data_out.num_pages;
+ wrote = num_pages;
} else {
wrote = 0;
mapping_set_error(mapping, rc);
@@ -581,7 +587,7 @@ static void writepages_finish(struct ceph_osd_request *req,
inode, rc, bytes, wrote);
/* clean all pages */
- for (i = 0; i < req->r_data_out.num_pages; i++) {
+ for (i = 0; i < num_pages; i++) {
page = req->r_data_out.pages[i];
BUG_ON(!page);
WARN_ON(!PageUptodate(page));
@@ -611,9 +617,9 @@ static void writepages_finish(struct ceph_osd_request *req,
unlock_page(page);
}
dout("%p wrote+cleaned %d pages\n", inode, wrote);
- ceph_put_wrbuffer_cap_refs(ci, req->r_data_out.num_pages, snapc);
+ ceph_put_wrbuffer_cap_refs(ci, num_pages, snapc);
- ceph_release_pages(req->r_data_out.pages, req->r_data_out.num_pages);
+ ceph_release_pages(req->r_data_out.pages, num_pages);
if (req->r_data_out.pages_from_pool)
mempool_free(req->r_data_out.pages,
ceph_sb_to_client(inode->i_sb)->wb_pagevec_pool);
@@ -624,15 +630,18 @@ static void writepages_finish(struct ceph_osd_request *req,
/*
* allocate a page vec, either directly, or if necessary, via a the
- * mempool. we avoid the mempool if we can because req->r_data_out.num_pages
+ * mempool. we avoid the mempool if we can because req->r_data_out.length
* may be less than the maximum write size.
*/
static void alloc_page_vec(struct ceph_fs_client *fsc,
struct ceph_osd_request *req)
{
size_t size;
+ int num_pages;
- size = sizeof (struct page *) * req->r_data_out.num_pages;
+ num_pages = calc_pages_for((u64)req->r_data_out.alignment,
+ (u64)req->r_data_out.length);
+ size = sizeof (struct page *) * num_pages;
req->r_data_out.pages = kmalloc(size, GFP_NOFS);
if (!req->r_data_out.pages) {
req->r_data_out.pages = mempool_alloc(fsc->wb_pagevec_pool,
@@ -838,11 +847,9 @@ get_more_pages:
}
req->r_data_out.type = CEPH_OSD_DATA_TYPE_PAGES;
- req->r_data_out.num_pages =
- calc_pages_for(0, len);
+ req->r_data_out.length = len;
req->r_data_out.alignment = 0;
- max_pages = req->r_data_out.num_pages;
-
+ max_pages = calc_pages_for(0, (u64)len);
alloc_page_vec(fsc, req);
req->r_callback = writepages_finish;
req->r_inode = inode;
@@ -900,7 +907,7 @@ get_more_pages:
locked_pages, offset, len);
/* revise final length, page count */
- req->r_data_out.num_pages = locked_pages;
+ req->r_data_out.length = len;
req->r_request_ops[0].extent.length = cpu_to_le64(len);
req->r_request_ops[0].payload_len = cpu_to_le32(len);
req->r_request->hdr.data_len = cpu_to_le32(len);
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