1 files changed, 36 insertions, 44 deletions

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 7aa398724706..c6108971b4e6 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1,39 +1,26 @@
 /*
- * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation.
  *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
-
 #include "xfs.h"
-#include "xfs_inum.h"
+#include "xfs_bit.h"
 #include "xfs_log.h"
+#include "xfs_inum.h"
 #include "xfs_sb.h"
+#include "xfs_ag.h"
 #include "xfs_dir.h"
 #include "xfs_dir2.h"
 #include "xfs_trans.h"
@@ -42,13 +29,13 @@
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dir_sf.h"
 #include "xfs_dir2_sf.h"
+#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
 #include "xfs_error.h"
 #include "xfs_rw.h"
 #include "xfs_iomap.h"
@@ -761,8 +748,9 @@ xfs_page_state_convert(
         if (page->index >= end_index) {
                 if ((page->index >= end_index + 1) ||
                     !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
-                        err = -EIO;
-                        goto error;
+                        if (startio)
+                                unlock_page(page);
+                        return 0;
                 }
         }
 
@@ -948,15 +936,18 @@ __linvfs_get_block(
 {
         vnode_t                 *vp = LINVFS_GET_VP(inode);
         xfs_iomap_t             iomap;
+        xfs_off_t               offset;
+        ssize_t                 size;
         int                     retpbbm = 1;
         int                     error;
-        ssize_t                 size;
-        loff_t                  offset = (loff_t)iblock << inode->i_blkbits;
 
-        if (blocks)
-                size = blocks << inode->i_blkbits;
-        else
+        if (blocks) {
+                offset = blocks << inode->i_blkbits;    /* 64 bit goodness */
+                size = (ssize_t) min_t(xfs_off_t, offset, LONG_MAX);
+        } else {
                 size = 1 << inode->i_blkbits;
+        }
+        offset = (xfs_off_t)iblock << inode->i_blkbits;
 
         VOP_BMAP(vp, offset, size,
                 create ? flags : BMAPI_READ, &iomap, &retpbbm, error);
@@ -967,8 +958,8 @@ __linvfs_get_block(
                 return 0;
 
         if (iomap.iomap_bn != IOMAP_DADDR_NULL) {
-                xfs_daddr_t             bn;
-                loff_t                  delta;
+                xfs_daddr_t     bn;
+                xfs_off_t       delta;
 
                 /* For unwritten extents do not report a disk address on
                  * the read case (treat as if we're reading into a hole).
@@ -1000,9 +991,8 @@ __linvfs_get_block(
          */
         if (create &&
             ((!buffer_mapped(bh_result) && !buffer_uptodate(bh_result)) ||
-             (offset >= i_size_read(inode)) || (iomap.iomap_flags & IOMAP_NEW))) {
+             (offset >= i_size_read(inode)) || (iomap.iomap_flags & IOMAP_NEW)))
                 set_buffer_new(bh_result);
-        }
 
         if (iomap.iomap_flags & IOMAP_DELAY) {
                 BUG_ON(direct);
@@ -1014,9 +1004,11 @@ __linvfs_get_block(
         }
 
         if (blocks) {
-                bh_result->b_size = (ssize_t)min(
-                        (loff_t)(iomap.iomap_bsize - iomap.iomap_delta),
-                        (loff_t)(blocks << inode->i_blkbits));
+                ASSERT(iomap.iomap_bsize - iomap.iomap_delta > 0);
+                offset = min_t(xfs_off_t,
+                                iomap.iomap_bsize - iomap.iomap_delta,
+                                blocks << inode->i_blkbits);
+                bh_result->b_size = (u32) min_t(xfs_off_t, UINT_MAX, offset);
         }
 
         return 0;