+ fs_warn(sdp, "bd_list_tr = %s, bd_le.le_list = %s\n",
+ (list_empty(&bd->bd_list_tr)) ? "no" : "yes",
+ (list_empty(&bd->bd_le.le_list)) ? "no" : "yes");
+
+ if (gl->gl_ops == &gfs2_inode_glops) {
+ struct gfs2_inode *ip = gl->gl_object;
+ unsigned int x;
+
+ if (!ip)
+ return;
+
+ fs_warn(sdp, "ip = %llu %llu\n",
+ (unsigned long long)ip->i_num.no_formal_ino,
+ (unsigned long long)ip->i_num.no_addr);
+
+ for (x = 0; x < GFS2_MAX_META_HEIGHT; x++)
+ fs_warn(sdp, "ip->i_cache[%u] = %s\n",
+ x, (ip->i_cache[x]) ? "!NULL" : "NULL");
+ }
+}
+
+/**
+ * gfs2_aspace_releasepage - free the metadata associated with a page
+ * @page: the page that's being released
+ * @gfp_mask: passed from Linux VFS, ignored by us
+ *
+ * Call try_to_free_buffers() if the buffers in this page can be
+ * released.
+ *
+ * Returns: 0
+ */
+
+int gfs2_releasepage(struct page *page, gfp_t gfp_mask)
+{
+ struct inode *aspace = page->mapping->host;
+ struct gfs2_sbd *sdp = aspace->i_sb->s_fs_info;
+ struct buffer_head *bh, *head;
+ struct gfs2_bufdata *bd;
+ unsigned long t = jiffies + gfs2_tune_get(sdp, gt_stall_secs) * HZ;
+
+ if (!page_has_buffers(page))
+ goto out;
+
+ head = bh = page_buffers(page);
+ do {
+ while (atomic_read(&bh->b_count)) {
+ if (!atomic_read(&aspace->i_writecount))
+ return 0;
+
+ if (time_after_eq(jiffies, t)) {
+ stuck_releasepage(bh);
+ /* should we withdraw here? */
+ return 0;
+ }
+
+ yield();
+ }
+
+ gfs2_assert_warn(sdp, !buffer_pinned(bh));
+
+ bd = bh->b_private;
+ if (bd) {
+ gfs2_assert_warn(sdp, bd->bd_bh == bh);
+ gfs2_assert_warn(sdp, list_empty(&bd->bd_list_tr));
+ gfs2_assert_warn(sdp, list_empty(&bd->bd_le.le_list));
+ gfs2_assert_warn(sdp, !bd->bd_ail);
+ kmem_cache_free(gfs2_bufdata_cachep, bd);
+ bh->b_private = NULL;
+ }
+
+ bh = bh->b_this_page;
+ } while (bh != head);
+
+out:
+ return try_to_free_buffers(page);