1 2010-07-31 Oracle, Inc.
6 Description: Reduce group prealloc size and skip groups with little free space.
10 Description: Fix issue with proc_remove.
14 Description: add mount option to disable mb_cache since it can cause slowdown.
18 Description: Disable delayed allocation by default for ext4-based ldiskfs on
23 Description: A mount failure can corrupt the slab. This is a bug in the latest
24 RHEL5.5 kernel and only ext4-based ldiskfs is impacted.
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28 2010-04-30 Oracle, Inc.
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34 2010-01-29 Sun Microsystems, Inc.
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40 2009-11-05 Sun Microsystems, Inc.
44 Frequency : in recovery
46 Description: ext3-corrupted-orphans-2.6.patch added.
47 Details : Backport of ext3 patch to handle corrupted orphans.
49 -------------------------------------------------------------------------------
51 2009-07-31 Sun Microsystems, Inc.
55 Frequency : in recovery
57 Description: don't mix llog inodes with normal.
58 Details : allocate inodes for log in last inode group
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62 2009-04-20 Sun Microsystems, Inc.
67 Description: minor fixes and cleanups
68 Details : use EXT_UNSET_BLOCK to avoid confusion with EXT_MAX_BLOCK.
69 Initialize 'ix' variable in extents patch to stop compiler warning.
73 Description: update FIEMAP ioctl to match upstream kernel version
74 Details : the FIEMAP block-mapping ioctl had a prototype version in
75 ldiskfs 3.0.7 but this release updates it to match the
76 interface in the upstream kernel, with a new ioctl number.
79 Frequency : only if MMP is active and detects filesystem is in use
81 Description: if MMP startup fails, an oops is triggered
82 Details : if ldiskfs mounting doesn't succeed the error handling doesn't
83 clean up the MMP data correctly, causing an oops.
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87 2009-04-06 Sun Microsystems, Inc.
93 Description: fix racy locking of mballoc block bitmaps causing BUG
94 Details : The locking of the mballoc buddy bitmap and the in-memory
95 block bitmap was using two different spin locks in some
96 cases. This made it possible to incorrectly access the
97 mballoc bitmap while another process was modifying it,
98 causing a sanity assertion to fail. While no on-disk corruption
99 was reported, there was some risk of this happening.
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103 2009-02-07 Sun Microsystems, Inc.
106 Severity : enhancement
108 Description: Get RAID stripe size from superblock
109 Details : RAID striping parameters are now saved in the superblock itself,
110 so we should use these parameters instead of having to specify
111 a mount option each time.
114 Frequency : only if server is running on unsupported big-endian machine
116 Description: Disable big-endian ldiskfs server support.
117 Details : The ldiskfs code is not tested on big-endian machines, and
118 there are known compatibility problems in the extents code
119 when running for most of the kernels. Print an error message
120 and refuse to mount, in case anyone tests this. For existing
121 filesystems that might have been created in this way it is
122 possible to mount with the "bigendian_extents" option to
126 Frequency : only with software RAID-5
128 Description: MMP block reads may fail to detect another user of the filesystem
129 Details : with software RAID it is possible that the RAID driver will
130 cache the MMP block and not refetch it from disk. Force the
131 read to invalidate the RAID page cache and go directly to disk.
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135 2008-08-31 Sun Microsystems, Inc.
138 Severity : enhancement
140 Description: Interoperability at server side (Disk interoperability)
141 Details : Exported some ldiskfs functions which are required for iop
145 Description: OSS crashes frequently, e2fsck does not fix
146 Details : Add an extra check to ldiskfs extents code for the condition,
147 eh_entries = 0 & eh_depth != 0
151 Description: migrate ldiskfs - ldiskfs2 (extents on directories)
152 Details : disable preallocation for non-regular files.
155 Frequency : blocks per group < blocksize*8 and uninit_groups is enabled
157 Description: ldiskfs error: XXX blocks in bitmap, YYY in gd
158 Details : If blocks per group is less than blocksize*8, set rest of the
162 Frequency : only for filesystems larger than 8TB
164 Description: ldiskfs BUG ldiskfs_mb_use_best_found()
165 Details : The ldiskfs mballoc3 code was using a __u16 to store the group
166 number, but with 8TB+ filesystems there are more than 65536
167 groups, causing an oops.
169 Severity : enhancement
171 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
172 Details : FIEMAP ioctl will allow an application to efficiently fetch the
173 extent information of a file. It can be used to map logical blocks
174 in a file to physical blocks in the block device.
178 Description: mkfs.lustre: Unable to mount /dev/cciss/c0d1:Cannot allocate memory
179 Details : correctly handle device paths using a subdirectory in /dev when
180 creating the per-device procfs directory under /proc/fs/ldiskfs.
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184 2008-04-26 Sun Microsystems, Inc.
189 Description: Kernel BUG at ... ldiskfs/ldiskfs/mballoc.c:3853
190 Details : Removing the underlying device (e.g. via a SCSI rescan) can cause a
191 kernel BUG in ldiskfs_mb_discard_inode_preallocations().
195 Description: deadlock in ext3_expand_extra_isize
196 Details : Inode expansion during ext3_mark_inode_dirty may lead to deadlock.
197 This is solved by making sure that ext3_expand_extra_isize isn't
198 called from ext3_xattr_set_handle.
202 Description: soft lockups on 1.6.2 MDS (is_subdir)
203 Details : don't add dentries with ".." to dcache and ignore such dentries in
207 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
209 Description: files may lose file attributes in some cases
210 Details : If there are multiple extended attributes stored on the inode,
211 in particular ACLs, SELinux, or user attributes (if user_xattr
212 is specified for the client mount options) then there is a risk
213 of attribute loss. If an additional attribute is be stored
214 initially in the inode and then increase in size enough to be
215 moved to the external attribute block (e.g. ACL growing in size)
216 for the attribute to be lost.
220 Description: inode version not being initialized on new inodes
221 Details : The inode i_version field was not being initialized on disk.
222 This field is currently unused but will be needed for VBR.
224 --------------------------------------------------------------------------------
226 2008-01-11 Sun Microsystems, Inc.
231 Description: Add support for vanilla-2.6.22 kernel.
233 --------------------------------------------------------------------------------
235 2007-12-07 Cluster File Systems, Inc. <info@clusterfs.com>
240 Description: statfs speedup patches.
241 Details : The patches improve statfs performance for very large
245 Frequency : if the uninit_groups feature is enabled on ldiskfs
247 Description: e2fsck reports "invalid unused inodes count"
248 Details : If a new ldiskfs filesystem is created with the "uninit_groups"
249 feature and only a single inode is created in a group then the
250 "bg_unused_inodes" count is incorrectly updated. Creating a
251 second inode in that group would update it correctly.
253 --------------------------------------------------------------------------------
255 2007-09-27 Cluster File Systems, Inc. <info@clusterfs.com>
258 Severity : enhancement
260 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
261 Details : FIEMAP ioctl will allow an application to efficiently fetch the
262 extent information of a file. It can be used to map logical blocks
263 in a file to physical blocks in the block device.
265 --------------------------------------------------------------------------------
267 2007-08-29 Cluster File Systems, Inc. <info@clusterfs.com>
273 Description: Multiple mount protection(MMP) support.
274 Details : This feature will protect the filesystem from being mounted more
275 than once simultaneously. It will also protect changes by e2fsprogs
276 to the filesystem if it is mounted. This assumes high importance
277 in a shared storage environment where multiple mounts can severely
278 corrupt the filesystem.
280 --------------------------------------------------------------------------------
282 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
284 * Initial release of ldiskfs as a separate package.
289 Description: Updated patchess for new RHEL4 kernel
290 Details : Add patch ext3-unlink-race.patch
291 Updated series file ldiskfs-2.6-rhel4.series