afs: Make afs_fs_fetch_data() take a list of pages
Make afs_fs_fetch_data() take a list of pages for bulk data transfer. This
will allow afs_readpages() to be made more efficient.
Signed-off-by: David Howells <[email protected]>
diff --git a/fs/afs/write.c b/fs/afs/write.c
index f865c3f..c83c1a0 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -86,19 +86,30 @@ void afs_put_writeback(struct afs_writeback *wb)
static int afs_fill_page(struct afs_vnode *vnode, struct key *key,
loff_t pos, struct page *page)
{
+ struct afs_read *req;
loff_t i_size;
int ret;
- int len;
_enter(",,%llu", (unsigned long long)pos);
+ req = kzalloc(sizeof(struct afs_read) + sizeof(struct page *),
+ GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ atomic_set(&req->usage, 1);
+ req->pos = pos;
+ req->nr_pages = 1;
+ req->pages[0] = page;
+
i_size = i_size_read(&vnode->vfs_inode);
if (pos + PAGE_SIZE > i_size)
- len = i_size - pos;
+ req->len = i_size - pos;
else
- len = PAGE_SIZE;
+ req->len = PAGE_SIZE;
- ret = afs_vnode_fetch_data(vnode, key, pos, len, page);
+ ret = afs_vnode_fetch_data(vnode, key, req);
+ afs_put_read(req);
if (ret < 0) {
if (ret == -ENOENT) {
_debug("got NOENT from server"
