1 2010-07-15 Oracle, Inc.
6 Description: FID_in_Dirent feature for OSD.
7 Details : Support for storing the FID in the directory entry has
8 been added to ext3 and ext4.
10 -------------------------------------------------------------------------------
12 2009-11-05 Sun Microsystems, Inc.
16 Frequency : in recovery
18 Description: ext3-corrupted-orphans-2.6.patch added.
19 Details : Backport of ext3 patch to handle corrupted orphans.
21 -------------------------------------------------------------------------------
23 2009-07-31 Sun Microsystems, Inc.
27 Frequency : in recovery
29 Description: don't mix llog inodes with normal.
30 Details : allocate inodes for log in last inode group
32 -------------------------------------------------------------------------------
34 2009-04-20 Sun Microsystems, Inc.
39 Description: minor fixes and cleanups
40 Details : use EXT_UNSET_BLOCK to avoid confusion with EXT_MAX_BLOCK.
41 Initialize 'ix' variable in extents patch to stop compiler warning.
45 Description: update FIEMAP ioctl to match upstream kernel version
46 Details : the FIEMAP block-mapping ioctl had a prototype version in
47 ldiskfs 3.0.7 but this release updates it to match the
48 interface in the upstream kernel, with a new ioctl number.
51 Frequency : only if MMP is active and detects filesystem is in use
53 Description: if MMP startup fails, an oops is triggered
54 Details : if ldiskfs mounting doesn't succeed the error handling doesn't
55 clean up the MMP data correctly, causing an oops.
57 -------------------------------------------------------------------------------
59 2009-04-06 Sun Microsystems, Inc.
65 Description: fix racy locking of mballoc block bitmaps causing BUG
66 Details : The locking of the mballoc buddy bitmap and the in-memory
67 block bitmap was using two different spin locks in some
68 cases. This made it possible to incorrectly access the
69 mballoc bitmap while another process was modifying it,
70 causing a sanity assertion to fail. While no on-disk corruption
71 was reported, there was some risk of this happening.
73 -------------------------------------------------------------------------------
75 2009-02-07 Sun Microsystems, Inc.
78 Severity : enhancement
80 Description: Get RAID stripe size from superblock
81 Details : RAID striping parameters are now saved in the superblock itself,
82 so we should use these parameters instead of having to specify
83 a mount option each time.
86 Frequency : only if server is running on unsupported big-endian machine
88 Description: Disable big-endian ldiskfs server support.
89 Details : The ldiskfs code is not tested on big-endian machines, and
90 there are known compatibility problems in the extents code
91 when running for most of the kernels. Print an error message
92 and refuse to mount, in case anyone tests this. For existing
93 filesystems that might have been created in this way it is
94 possible to mount with the "bigendian_extents" option to
98 Frequency : only with software RAID-5
100 Description: MMP block reads may fail to detect another user of the filesystem
101 Details : with software RAID it is possible that the RAID driver will
102 cache the MMP block and not refetch it from disk. Force the
103 read to invalidate the RAID page cache and go directly to disk.
105 -------------------------------------------------------------------------------
107 2008-08-31 Sun Microsystems, Inc.
110 Severity : enhancement
112 Description: Interoperability at server side (Disk interoperability)
113 Details : Exported some ldiskfs functions which are required for iop
117 Description: OSS crashes frequently, e2fsck does not fix
118 Details : Add an extra check to ldiskfs extents code for the condition,
119 eh_entries = 0 & eh_depth != 0
123 Description: migrate ldiskfs - ldiskfs2 (extents on directories)
124 Details : disable preallocation for non-regular files.
127 Frequency : blocks per group < blocksize*8 and uninit_groups is enabled
129 Description: ldiskfs error: XXX blocks in bitmap, YYY in gd
130 Details : If blocks per group is less than blocksize*8, set rest of the
134 Frequency : only for filesystems larger than 8TB
136 Description: ldiskfs BUG ldiskfs_mb_use_best_found()
137 Details : The ldiskfs mballoc3 code was using a __u16 to store the group
138 number, but with 8TB+ filesystems there are more than 65536
139 groups, causing an oops.
141 Severity : enhancement
143 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
144 Details : FIEMAP ioctl will allow an application to efficiently fetch the
145 extent information of a file. It can be used to map logical blocks
146 in a file to physical blocks in the block device.
150 Description: mkfs.lustre: Unable to mount /dev/cciss/c0d1:Cannot allocate memory
151 Details : correctly handle device paths using a subdirectory in /dev when
152 creating the per-device procfs directory under /proc/fs/ldiskfs.
154 -------------------------------------------------------------------------------
156 2008-04-26 Sun Microsystems, Inc.
161 Description: Kernel BUG at ... ldiskfs/ldiskfs/mballoc.c:3853
162 Details : Removing the underlying device (e.g. via a SCSI rescan) can cause a
163 kernel BUG in ldiskfs_mb_discard_inode_preallocations().
167 Description: deadlock in ext3_expand_extra_isize
168 Details : Inode expansion during ext3_mark_inode_dirty may lead to deadlock.
169 This is solved by making sure that ext3_expand_extra_isize isn't
170 called from ext3_xattr_set_handle.
174 Description: soft lockups on 1.6.2 MDS (is_subdir)
175 Details : don't add dentries with ".." to dcache and ignore such dentries in
179 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
181 Description: files may lose file attributes in some cases
182 Details : If there are multiple extended attributes stored on the inode,
183 in particular ACLs, SELinux, or user attributes (if user_xattr
184 is specified for the client mount options) then there is a risk
185 of attribute loss. If an additional attribute is be stored
186 initially in the inode and then increase in size enough to be
187 moved to the external attribute block (e.g. ACL growing in size)
188 for the attribute to be lost.
192 Description: inode version not being initialized on new inodes
193 Details : The inode i_version field was not being initialized on disk.
194 This field is currently unused but will be needed for VBR.
196 --------------------------------------------------------------------------------
198 2008-01-11 Sun Microsystems, Inc.
203 Description: Add support for vanilla-2.6.22 kernel.
205 --------------------------------------------------------------------------------
207 2007-12-07 Cluster File Systems, Inc. <info@clusterfs.com>
212 Description: statfs speedup patches.
213 Details : The patches improve statfs performance for very large
217 Frequency : if the uninit_groups feature is enabled on ldiskfs
219 Description: e2fsck reports "invalid unused inodes count"
220 Details : If a new ldiskfs filesystem is created with the "uninit_groups"
221 feature and only a single inode is created in a group then the
222 "bg_unused_inodes" count is incorrectly updated. Creating a
223 second inode in that group would update it correctly.
225 --------------------------------------------------------------------------------
227 2007-09-27 Cluster File Systems, Inc. <info@clusterfs.com>
230 Severity : enhancement
232 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
233 Details : FIEMAP ioctl will allow an application to efficiently fetch the
234 extent information of a file. It can be used to map logical blocks
235 in a file to physical blocks in the block device.
237 --------------------------------------------------------------------------------
239 2007-08-29 Cluster File Systems, Inc. <info@clusterfs.com>
245 Description: Multiple mount protection(MMP) support.
246 Details : This feature will protect the filesystem from being mounted more
247 than once simultaneously. It will also protect changes by e2fsprogs
248 to the filesystem if it is mounted. This assumes high importance
249 in a shared storage environment where multiple mounts can severely
250 corrupt the filesystem.
252 --------------------------------------------------------------------------------
254 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
256 * Initial release of ldiskfs as a separate package.
261 Description: Updated patchess for new RHEL4 kernel
262 Details : Add patch ext3-unlink-race.patch
263 Updated series file ldiskfs-2.6-rhel4.series