1 tbd Sun Microsystems, Inc.
5 -------------------------------------------------------------------------------
7 tbd Sun Microsystems, Inc.
11 Frequency : in recovery
13 Description: don't mix llog inodes with normal.
14 Details : allocate inodes for log in last inode group
16 -------------------------------------------------------------------------------
18 2009-04-20 Sun Microsystems, Inc.
23 Description: minor fixes and cleanups
24 Details : use EXT_UNSET_BLOCK to avoid confusion with EXT_MAX_BLOCK.
25 Initialize 'ix' variable in extents patch to stop compiler warning.
29 Description: update FIEMAP ioctl to match upstream kernel version
30 Details : the FIEMAP block-mapping ioctl had a prototype version in
31 ldiskfs 3.0.7 but this release updates it to match the
32 interface in the upstream kernel, with a new ioctl number.
35 Frequency : only if MMP is active and detects filesystem is in use
37 Description: if MMP startup fails, an oops is triggered
38 Details : if ldiskfs mounting doesn't succeed the error handling doesn't
39 clean up the MMP data correctly, causing an oops.
41 -------------------------------------------------------------------------------
43 2009-04-06 Sun Microsystems, Inc.
49 Description: fix racy locking of mballoc block bitmaps causing BUG
50 Details : The locking of the mballoc buddy bitmap and the in-memory
51 block bitmap was using two different spin locks in some
52 cases. This made it possible to incorrectly access the
53 mballoc bitmap while another process was modifying it,
54 causing a sanity assertion to fail. While no on-disk corruption
55 was reported, there was some risk of this happening.
57 -------------------------------------------------------------------------------
59 2009-02-07 Sun Microsystems, Inc.
62 Severity : enhancement
64 Description: Get RAID stripe size from superblock
65 Details : RAID striping parameters are now saved in the superblock itself,
66 so we should use these parameters instead of having to specify
67 a mount option each time.
70 Frequency : only if server is running on unsupported big-endian machine
72 Description: Disable big-endian ldiskfs server support.
73 Details : The ldiskfs code is not tested on big-endian machines, and
74 there are known compatibility problems in the extents code
75 when running for most of the kernels. Print an error message
76 and refuse to mount, in case anyone tests this. For existing
77 filesystems that might have been created in this way it is
78 possible to mount with the "bigendian_extents" option to
82 Frequency : only with software RAID-5
84 Description: MMP block reads may fail to detect another user of the filesystem
85 Details : with software RAID it is possible that the RAID driver will
86 cache the MMP block and not refetch it from disk. Force the
87 read to invalidate the RAID page cache and go directly to disk.
89 -------------------------------------------------------------------------------
91 2008-08-31 Sun Microsystems, Inc.
94 Severity : enhancement
96 Description: Interoperability at server side (Disk interoperability)
97 Details : Exported some ldiskfs functions which are required for iop
101 Description: OSS crashes frequently, e2fsck does not fix
102 Details : Add an extra check to ldiskfs extents code for the condition,
103 eh_entries = 0 & eh_depth != 0
107 Description: migrate ldiskfs - ldiskfs2 (extents on directories)
108 Details : disable preallocation for non-regular files.
111 Frequency : blocks per group < blocksize*8 and uninit_groups is enabled
113 Description: ldiskfs error: XXX blocks in bitmap, YYY in gd
114 Details : If blocks per group is less than blocksize*8, set rest of the
118 Frequency : only for filesystems larger than 8TB
120 Description: ldiskfs BUG ldiskfs_mb_use_best_found()
121 Details : The ldiskfs mballoc3 code was using a __u16 to store the group
122 number, but with 8TB+ filesystems there are more than 65536
123 groups, causing an oops.
125 Severity : enhancement
127 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
128 Details : FIEMAP ioctl will allow an application to efficiently fetch the
129 extent information of a file. It can be used to map logical blocks
130 in a file to physical blocks in the block device.
134 Description: mkfs.lustre: Unable to mount /dev/cciss/c0d1:Cannot allocate memory
135 Details : correctly handle device paths using a subdirectory in /dev when
136 creating the per-device procfs directory under /proc/fs/ldiskfs.
138 -------------------------------------------------------------------------------
140 2008-04-26 Sun Microsystems, Inc.
145 Description: Kernel BUG at ... ldiskfs/ldiskfs/mballoc.c:3853
146 Details : Removing the underlying device (e.g. via a SCSI rescan) can cause a
147 kernel BUG in ldiskfs_mb_discard_inode_preallocations().
151 Description: deadlock in ext3_expand_extra_isize
152 Details : Inode expansion during ext3_mark_inode_dirty may lead to deadlock.
153 This is solved by making sure that ext3_expand_extra_isize isn't
154 called from ext3_xattr_set_handle.
158 Description: soft lockups on 1.6.2 MDS (is_subdir)
159 Details : don't add dentries with ".." to dcache and ignore such dentries in
163 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
165 Description: files may lose file attributes in some cases
166 Details : If there are multiple extended attributes stored on the inode,
167 in particular ACLs, SELinux, or user attributes (if user_xattr
168 is specified for the client mount options) then there is a risk
169 of attribute loss. If an additional attribute is be stored
170 initially in the inode and then increase in size enough to be
171 moved to the external attribute block (e.g. ACL growing in size)
172 for the attribute to be lost.
176 Description: inode version not being initialized on new inodes
177 Details : The inode i_version field was not being initialized on disk.
178 This field is currently unused but will be needed for VBR.
180 --------------------------------------------------------------------------------
182 2008-01-11 Sun Microsystems, Inc.
187 Description: Add support for vanilla-2.6.22 kernel.
189 --------------------------------------------------------------------------------
191 2007-12-07 Cluster File Systems, Inc. <info@clusterfs.com>
196 Description: statfs speedup patches.
197 Details : The patches improve statfs performance for very large
201 Frequency : if the uninit_groups feature is enabled on ldiskfs
203 Description: e2fsck reports "invalid unused inodes count"
204 Details : If a new ldiskfs filesystem is created with the "uninit_groups"
205 feature and only a single inode is created in a group then the
206 "bg_unused_inodes" count is incorrectly updated. Creating a
207 second inode in that group would update it correctly.
209 --------------------------------------------------------------------------------
211 2007-09-27 Cluster File Systems, Inc. <info@clusterfs.com>
214 Severity : enhancement
216 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
217 Details : FIEMAP ioctl will allow an application to efficiently fetch the
218 extent information of a file. It can be used to map logical blocks
219 in a file to physical blocks in the block device.
221 --------------------------------------------------------------------------------
223 2007-08-29 Cluster File Systems, Inc. <info@clusterfs.com>
229 Description: Multiple mount protection(MMP) support.
230 Details : This feature will protect the filesystem from being mounted more
231 than once simultaneously. It will also protect changes by e2fsprogs
232 to the filesystem if it is mounted. This assumes high importance
233 in a shared storage environment where multiple mounts can severely
234 corrupt the filesystem.
236 --------------------------------------------------------------------------------
238 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
240 * Initial release of ldiskfs as a separate package.
245 Description: Updated patchess for new RHEL4 kernel
246 Details : Add patch ext3-unlink-race.patch
247 Updated series file ldiskfs-2.6-rhel4.series