[POWERPC] 85xx: mpc85xx_mds - reset UCC ethernet properly

[linux-2.6] / fs / ocfs2 / aops.c

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 50cd8a209012ed0cd216c651483416c71baa0d28..f37f25c931f59f7e8b6b5c27ab502529f8621834 100644 (file)
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -930,18 +930,11 @@ static void ocfs2_write_failure(struct inode *inode,
                                loff_t user_pos, unsigned user_len)
 {
        int i;
-       unsigned from, to;
+       unsigned from = user_pos & (PAGE_CACHE_SIZE - 1),
+               to = user_pos + user_len;
        struct page *tmppage;
 
-       ocfs2_zero_new_buffers(wc->w_target_page, user_pos, user_len);
-
-       if (wc->w_large_pages) {
-               from = wc->w_target_from;
-               to = wc->w_target_to;
-       } else {
-               from = 0;
-               to = PAGE_CACHE_SIZE;
-       }
+       ocfs2_zero_new_buffers(wc->w_target_page, from, to);
 
        for(i = 0; i < wc->w_num_pages; i++) {
                tmppage = wc->w_pages[i];
@@ -991,9 +984,6 @@ static int ocfs2_prepare_page_for_write(struct inode *inode, u64 *p_blkno,
                        map_from = cluster_start;
                        map_to = cluster_end;
                }
-
-               wc->w_target_from = map_from;
-               wc->w_target_to = map_to;
        } else {
                /*
                 * If we haven't allocated the new page yet, we
@@ -1211,18 +1201,33 @@ static int ocfs2_write_cluster_by_desc(struct address_space *mapping,
                                       loff_t pos, unsigned len)
 {
        int ret, i;
+       loff_t cluster_off;
+       unsigned int local_len = len;
        struct ocfs2_write_cluster_desc *desc;
+       struct ocfs2_super *osb = OCFS2_SB(mapping->host->i_sb);
 
        for (i = 0; i < wc->w_clen; i++) {
                desc = &wc->w_desc[i];
 
+               /*
+                * We have to make sure that the total write passed in
+                * doesn't extend past a single cluster.
+                */
+               local_len = len;
+               cluster_off = pos & (osb->s_clustersize - 1);
+               if ((cluster_off + local_len) > osb->s_clustersize)
+                       local_len = osb->s_clustersize - cluster_off;
+
                ret = ocfs2_write_cluster(mapping, desc->c_phys,
                                          desc->c_unwritten, data_ac, meta_ac,
-                                         wc, desc->c_cpos, pos, len);
+                                         wc, desc->c_cpos, pos, local_len);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
                }
+
+               len -= local_len;
+               pos += local_len;
        }
 
        ret = 0;