[XFS] truncate readdir offsets to signed 32 bit values

[linux-2.6-omap-h63xx.git] / fs / xfs / linux-2.6 / xfs_fs_subr.c

diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 36caa6d957dfd035687e51511622f07366b4c259..5aeb777769613152297ebacb0d5a9ade99f7f26c 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -24,6 +24,10 @@ int  fs_noerr(void) { return 0; }
 int  fs_nosys(void) { return ENOSYS; }
 void fs_noval(void) { return; }
 
+/*
+ * note: all filemap functions return negative error codes. These
+ * need to be inverted before returning to the xfs core functions.
+ */
 void
 xfs_tosspages(
        xfs_inode_t     *ip,
@@ -53,7 +57,7 @@ xfs_flushinval_pages(
                if (!ret)
                        truncate_inode_pages(mapping, first);
        }
-       return ret;
+       return -ret;
 }
 
 int
@@ -72,10 +76,23 @@ xfs_flush_pages(
                xfs_iflags_clear(ip, XFS_ITRUNCATED);
                ret = filemap_fdatawrite(mapping);
                if (flags & XFS_B_ASYNC)
-                       return ret;
+                       return -ret;
                ret2 = filemap_fdatawait(mapping);
                if (!ret)
                        ret = ret2;
        }
-       return ret;
+       return -ret;
+}
+
+int
+xfs_wait_on_pages(
+       xfs_inode_t     *ip,
+       xfs_off_t       first,
+       xfs_off_t       last)
+{
+       struct address_space *mapping = VFS_I(ip)->i_mapping;
+
+       if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK))
+               return -filemap_fdatawait(mapping);
+       return 0;
 }