3 files changed, 21 insertions, 22 deletions

diff --git a/fs/ntfs/Makefile b/fs/ntfs/Makefile
index 58b6be992544..4ff028fcfd6e 100644
--- a/fs/ntfs/Makefile
+++ b/fs/ntfs/Makefile
@@ -6,7 +6,7 @@ ntfs-objs := aops.o attrib.o collate.o compress.o debug.o dir.o file.o \
              index.o inode.o mft.o mst.o namei.o runlist.o super.o sysctl.o \
              unistr.o upcase.o
 
-EXTRA_CFLAGS = -DNTFS_VERSION=\"2.1.29\"
+EXTRA_CFLAGS = -DNTFS_VERSION=\"2.1.30\"
 
 ifeq ($(CONFIG_NTFS_DEBUG),y)
 EXTRA_CFLAGS += -DDEBUG
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 113ebd9f25a4..f4b1057abdd2 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -1,7 +1,7 @@
 /*
  * file.c - NTFS kernel file operations.  Part of the Linux-NTFS project.
  *
- * Copyright (c) 2001-2007 Anton Altaparmakov
+ * Copyright (c) 2001-2011 Anton Altaparmakov and Tuxera Inc.
  *
  * This program/include file is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as published
@@ -1380,15 +1380,14 @@ static inline void ntfs_set_next_iovec(const struct iovec **iovp,
  * pages (out to offset + bytes), to emulate ntfs_copy_from_user()'s
  * single-segment behaviour.
  *
- * We call the same helper (__ntfs_copy_from_user_iovec_inatomic()) both
- * when atomic and when not atomic.  This is ok because
- * __ntfs_copy_from_user_iovec_inatomic() calls __copy_from_user_inatomic()
- * and it is ok to call this when non-atomic.
- * Infact, the only difference between __copy_from_user_inatomic() and
+ * We call the same helper (__ntfs_copy_from_user_iovec_inatomic()) both when
+ * atomic and when not atomic.  This is ok because it calls
+ * __copy_from_user_inatomic() and it is ok to call this when non-atomic.  In
+ * fact, the only difference between __copy_from_user_inatomic() and
  * __copy_from_user() is that the latter calls might_sleep() and the former
- * should not zero the tail of the buffer on error.  And on many
- * architectures __copy_from_user_inatomic() is just defined to
- * __copy_from_user() so it makes no difference at all on those architectures.
+ * should not zero the tail of the buffer on error.  And on many architectures
+ * __copy_from_user_inatomic() is just defined to __copy_from_user() so it
+ * makes no difference at all on those architectures.
  */
 static inline size_t ntfs_copy_from_user_iovec(struct page **pages,
                 unsigned nr_pages, unsigned ofs, const struct iovec **iov,
@@ -1409,28 +1408,28 @@ static inline size_t ntfs_copy_from_user_iovec(struct page **pages,
                 if (unlikely(copied != len)) {
                         /* Do it the slow way. */
                         addr = kmap(*pages);
-                        copied = __ntfs_copy_from_user_iovec_inatomic(addr + ofs,
-                                        *iov, *iov_ofs, len);
-                        /*
-                         * Zero the rest of the target like __copy_from_user().
-                         */
-                        memset(addr + ofs + copied, 0, len - copied);
-                        kunmap(*pages);
+                        copied = __ntfs_copy_from_user_iovec_inatomic(addr +
+                                        ofs, *iov, *iov_ofs, len);
                         if (unlikely(copied != len))
                                 goto err_out;
+                        kunmap(*pages);
                 }
                 total += len;
+                ntfs_set_next_iovec(iov, iov_ofs, len);
                 bytes -= len;
                 if (!bytes)
                         break;
-                ntfs_set_next_iovec(iov, iov_ofs, len);
                 ofs = 0;
         } while (++pages < last_page);
 out:
         return total;
 err_out:
-        total += copied;
+        BUG_ON(copied > len);
         /* Zero the rest of the target like __copy_from_user(). */
+        memset(addr + ofs + copied, 0, len - copied);
+        kunmap(*pages);
+        total += copied;
+        ntfs_set_next_iovec(iov, iov_ofs, copied);
         while (++pages < last_page) {
                 bytes -= len;
                 if (!bytes)
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index a30ecacc01f2..29099a07b9fe 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -1,7 +1,7 @@
 /*
  * super.c - NTFS kernel super block handling. Part of the Linux-NTFS project.
  *
- * Copyright (c) 2001-2007 Anton Altaparmakov
+ * Copyright (c) 2001-2011 Anton Altaparmakov and Tuxera Inc.
  * Copyright (c) 2001,2002 Richard Russon
  *
  * This program/include file is free software; you can redistribute it and/or
@@ -3193,8 +3193,8 @@ static void __exit exit_ntfs_fs(void)
         ntfs_sysctl(0);
 }
 
-MODULE_AUTHOR("Anton Altaparmakov <aia21@cantab.net>");
-MODULE_DESCRIPTION("NTFS 1.2/3.x driver - Copyright (c) 2001-2007 Anton Altaparmakov");
+MODULE_AUTHOR("Anton Altaparmakov <anton@tuxera.com>");
+MODULE_DESCRIPTION("NTFS 1.2/3.x driver - Copyright (c) 2001-2011 Anton Altaparmakov and Tuxera Inc.");
 MODULE_VERSION(NTFS_VERSION);
 MODULE_LICENSE("GPL");
 #ifdef DEBUG