The other common disk-based file systems (I checked ext[23], xfs, jfs)
check to ensure that opens of files > 2 GB fail unless O_LARGEFILE is
specified.  They check via generic_file_open or their own open routine.
ReiserFS doesn't have an f_op->open defined, and as such, it's possible to
open files > 2 GB without O_LARGEFILE.
This patch adds the f_op->open member to conform with the expected
behavior.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
        .compat_ioctl = reiserfs_compat_ioctl,
 #endif
        .mmap = generic_file_mmap,
+       .open = generic_file_open,
        .release = reiserfs_file_release,
        .fsync = reiserfs_sync_file,
        .sendfile = generic_file_sendfile,