[PATCH 24/37] Re: [2.6-BK-URL] NTFS: 2.1.21 - Big update with race/bugfixes

[Anton Altaparmakov]

This is patch 24/37 in the series.  It contains the following ChangeSet:

<aia21@xxxxxxxxxx> (04/10/12 1.2041.1.2)
   NTFS: Attempting to write outside initialized size is _not_ a bug so remove
         the bug check from fs/ntfs/aops.c::ntfs_write_mst_block().  It is in
         fact required to write outside initialized size when preparing to
         extend the initialized size.
   
   Signed-off-by: Anton Altaparmakov <aia21@xxxxxxxxxx>

Best regards,

	Anton
-- 
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer / IRC: #ntfs on irc.freenode.net
WWW: http://linux-ntfs.sf.net/, http://www-stu.christs.cam.ac.uk/~aia21/

===================================================================

diff -Nru a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
--- a/fs/ntfs/ChangeLog	2004-10-19 10:14:33 +01:00
+++ b/fs/ntfs/ChangeLog	2004-10-19 10:14:33 +01:00
@@ -76,6 +76,10 @@
 	- Modify fs/ntfs/mft.c::write_mft_record_nolock() so that it only
 	  writes the mft record if the buffers belonging to it are dirty.
 	  Otherwise we assume that it was written out by other means already.
+	- Attempting to write outside initialized size is _not_ a bug so remove
+	  the bug check from fs/ntfs/aops.c::ntfs_write_mst_block().  It is in
+	  fact required to write outside initialized size when preparing to
+	  extend the initialized size.
 
 2.1.20 - Fix two stupid bugs introduced in 2.1.18 release.
 
diff -Nru a/fs/ntfs/aops.c b/fs/ntfs/aops.c
--- a/fs/ntfs/aops.c	2004-10-19 10:14:33 +01:00
+++ b/fs/ntfs/aops.c	2004-10-19 10:14:33 +01:00
@@ -892,8 +892,6 @@
 			}
 			BUG_ON(!rec_is_dirty);
 		}
-		/* Attempting to write outside the initialized size is a bug. */
-		BUG_ON(((block + 1) << bh_size_bits) > ni->initialized_size);
 		if (!buffer_mapped(bh)) {
 			ntfs_error(vol->sb, "Writing ntfs records without "
 					"existing mapped buffers is not "
-
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