Branch b1_6

Description: MDS may lose file striping (and hence file data) in some cases
Details    : If there are additional extended attributes stored on the MDS,
	     in particular ACLs, SELinux, or user attributes (if user_xattr
	     is specified for the client mount options) then there is a risk
	     of attribute loss.  Additionally, the Lustre file striping
	     needs to be larger than default (e.g. striped over all OSTs),
	     and an additional attribute must be stored initially in the
	     inode and then increase in size enough to be moved to the
	     external attribute block (e.g. ACL growing in size) for file
	     data to be lost.
i=kalpak.shah
i=alex.zhuravlev
b=15777

Sync ChangeLog from b_release_1_6_5.

ldiskfs/ChangeLog

@@ -30,6 +30,18 @@ Description: soft lockups on 1.6.2 MDS (is_subdir)
 Details    : don't add dentries with ".." to dcache and ignore such dentries in
 	     iopen_lookup().
 
+Severity   : critical
+Frequency  : very rare, if additional xattrs are used on kernels >= 2.6.12
+Bugzilla   : 15777
+Description: files may lose file attributes in some cases
+Details    : If there are multiple extended attributes stored on the inode,
+	    in particular ACLs, SELinux, or user attributes (if user_xattr
+	    is specified for the client mount options) then there is a risk
+	    of attribute loss.  If an additional attribute is be stored
+	    initially in the inode and then increase in size enough to be
+	    moved to the external attribute block (e.g. ACL growing in size)
+	    for the attribute to be lost.
+
 --------------------------------------------------------------------------------
 
 2008-01-11  Sun Microsystems, Inc.

ldiskfs/kernel_patches/patches/ext3-ea-expand-lose-block.patch

+Date: Mon, 12 May 2008 11:24:40 +0800
+From: Tiger Yang <tiger.yang@oracle.com>
+Subject: [PATCH] ext3/4: fix uninitialized bs in ext3/4_xattr_set_handle()
+To: linux-ext4@vger.kernel.org
+Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
+
+This fix the uninitialized bs when we try to replace a xattr entry in ibody
+with the new value which require more than free space.
+
+Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
+
+
+diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
+--- a/fs/ext3/xattr.c
++++ b/fs/ext3/xattr.c
+@@ -1000,6 +1000,11 @@ ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
+ 			i.value = NULL;
+ 			error = ext3_xattr_block_set(handle, inode, &i, &bs);
+ 		} else if (error == -ENOSPC) {
++			if (EXT3_I(inode)->i_file_acl && !bs.s.base) {
++				error = ext3_xattr_block_find(inode, &i, &bs);
++				if (error)
++					goto cleanup;
++			}
+ 			error = ext3_xattr_block_set(handle, inode, &i, &bs);
+ 			if (error)
+ 				goto cleanup;

ldiskfs/kernel_patches/series/ldiskfs-2.6-rhel5.series

@@ -13,6 +13,7 @@ ext3-filterdata-sles10.patch
 ext3-uninit-2.6.18.patch
 ext3-nanosecond-2.6.18-vanilla.patch
 ext3-inode-version-2.6.18-vanilla.patch
+ext3-ea-expand-lose-block.patch
 ext3-mmp-2.6.18-vanilla.patch
 ext3-unlink-race.patch
 ext3-fiemap-2.6.18-vanilla.patch

ldiskfs/kernel_patches/series/ldiskfs-2.6-sles10.series

@@ -18,6 +18,7 @@ ext3-disable-write-bar-by-default-2.6-sles10.patch
 ext3-uninit-2.6-sles10.patch
 ext3-nanosecond-2.6-sles10.patch
 ext3-inode-version-2.6-sles10.patch
+ext3-ea-expand-lose-block.patch
 ext3-mmp-2.6-sles10.patch
 ext3-fiemap-2.6-sles10.patch
 ext3-statfs-2.6-sles10.patch

ldiskfs/kernel_patches/series/ldiskfs-2.6.18-vanilla.series

@@ -14,6 +14,7 @@ ext3-16tb-overflow-fixes.patch
 ext3-uninit-2.6.18.patch
 ext3-nanosecond-2.6.18-vanilla.patch
 ext3-inode-version-2.6.18-vanilla.patch
+ext3-ea-expand-lose-block.patch
 ext3-mmp-2.6.18-vanilla.patch
 ext3-handle-directory-corruption-better.patch
 ext3-fiemap-2.6.18-vanilla.patch

ldiskfs/kernel_patches/series/ldiskfs-2.6.22-vanilla.series

@@ -13,6 +13,7 @@ ext3-filterdata-sles10.patch
 ext3-uninit-2.6.22-vanilla.patch
 ext3-nanosecond-2.6.22-vanilla.patch
 ext3-inode-version-2.6.18-vanilla.patch
+ext3-ea-expand-lose-block.patch
 ext3-mmp-2.6.22-vanilla.patch
 ext3-fiemap-2.6.22-vanilla.patch
 ext3-statfs-2.6.22.patch