1 tbd Sun Microsystems, Inc.
10 -------------------------------------------------------------------------------
12 2009-04-20 Sun Microsystems, Inc.
17 Description: minor fixes and cleanups
18 Details : use EXT_UNSET_BLOCK to avoid confusion with EXT_MAX_BLOCK.
19 Initialize 'ix' variable in extents patch to stop compiler warning.
23 Description: update FIEMAP ioctl to match upstream kernel version
24 Details : the FIEMAP block-mapping ioctl had a prototype version in
25 ldiskfs 3.0.7 but this release updates it to match the
26 interface in the upstream kernel, with a new ioctl number.
29 Frequency : only if MMP is active and detects filesystem is in use
31 Description: if MMP startup fails, an oops is triggered
32 Details : if ldiskfs mounting doesn't succeed the error handling doesn't
33 clean up the MMP data correctly, causing an oops.
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37 2009-04-06 Sun Microsystems, Inc.
43 Description: fix racy locking of mballoc block bitmaps causing BUG
44 Details : The locking of the mballoc buddy bitmap and the in-memory
45 block bitmap was using two different spin locks in some
46 cases. This made it possible to incorrectly access the
47 mballoc bitmap while another process was modifying it,
48 causing a sanity assertion to fail. While no on-disk corruption
49 was reported, there was some risk of this happening.
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53 2009-02-07 Sun Microsystems, Inc.
56 Severity : enhancement
58 Description: Get RAID stripe size from superblock
59 Details : RAID striping parameters are now saved in the superblock itself,
60 so we should use these parameters instead of having to specify
61 a mount option each time.
64 Frequency : only if server is running on unsupported big-endian machine
66 Description: Disable big-endian ldiskfs server support.
67 Details : The ldiskfs code is not tested on big-endian machines, and
68 there are known compatibility problems in the extents code
69 when running for most of the kernels. Print an error message
70 and refuse to mount, in case anyone tests this. For existing
71 filesystems that might have been created in this way it is
72 possible to mount with the "bigendian_extents" option to
76 Frequency : only with software RAID-5
78 Description: MMP block reads may fail to detect another user of the filesystem
79 Details : with software RAID it is possible that the RAID driver will
80 cache the MMP block and not refetch it from disk. Force the
81 read to invalidate the RAID page cache and go directly to disk.
83 -------------------------------------------------------------------------------
85 2008-08-31 Sun Microsystems, Inc.
88 Severity : enhancement
90 Description: Interoperability at server side (Disk interoperability)
91 Details : Exported some ldiskfs functions which are required for iop
95 Description: OSS crashes frequently, e2fsck does not fix
96 Details : Add an extra check to ldiskfs extents code for the condition,
97 eh_entries = 0 & eh_depth != 0
101 Description: migrate ldiskfs - ldiskfs2 (extents on directories)
102 Details : disable preallocation for non-regular files.
105 Frequency : blocks per group < blocksize*8 and uninit_groups is enabled
107 Description: ldiskfs error: XXX blocks in bitmap, YYY in gd
108 Details : If blocks per group is less than blocksize*8, set rest of the
112 Frequency : only for filesystems larger than 8TB
114 Description: ldiskfs BUG ldiskfs_mb_use_best_found()
115 Details : The ldiskfs mballoc3 code was using a __u16 to store the group
116 number, but with 8TB+ filesystems there are more than 65536
117 groups, causing an oops.
119 Severity : enhancement
121 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
122 Details : FIEMAP ioctl will allow an application to efficiently fetch the
123 extent information of a file. It can be used to map logical blocks
124 in a file to physical blocks in the block device.
128 Description: mkfs.lustre: Unable to mount /dev/cciss/c0d1:Cannot allocate memory
129 Details : correctly handle device paths using a subdirectory in /dev when
130 creating the per-device procfs directory under /proc/fs/ldiskfs.
132 -------------------------------------------------------------------------------
134 2008-04-26 Sun Microsystems, Inc.
139 Description: Kernel BUG at ... ldiskfs/ldiskfs/mballoc.c:3853
140 Details : Removing the underlying device (e.g. via a SCSI rescan) can cause a
141 kernel BUG in ldiskfs_mb_discard_inode_preallocations().
145 Description: deadlock in ext3_expand_extra_isize
146 Details : Inode expansion during ext3_mark_inode_dirty may lead to deadlock.
147 This is solved by making sure that ext3_expand_extra_isize isn't
148 called from ext3_xattr_set_handle.
152 Description: soft lockups on 1.6.2 MDS (is_subdir)
153 Details : don't add dentries with ".." to dcache and ignore such dentries in
157 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
159 Description: files may lose file attributes in some cases
160 Details : If there are multiple extended attributes stored on the inode,
161 in particular ACLs, SELinux, or user attributes (if user_xattr
162 is specified for the client mount options) then there is a risk
163 of attribute loss. If an additional attribute is be stored
164 initially in the inode and then increase in size enough to be
165 moved to the external attribute block (e.g. ACL growing in size)
166 for the attribute to be lost.
170 Description: inode version not being initialized on new inodes
171 Details : The inode i_version field was not being initialized on disk.
172 This field is currently unused but will be needed for VBR.
174 --------------------------------------------------------------------------------
176 2008-01-11 Sun Microsystems, Inc.
181 Description: Add support for vanilla-2.6.22 kernel.
183 --------------------------------------------------------------------------------
185 2007-12-07 Cluster File Systems, Inc. <info@clusterfs.com>
190 Description: statfs speedup patches.
191 Details : The patches improve statfs performance for very large
195 Frequency : if the uninit_groups feature is enabled on ldiskfs
197 Description: e2fsck reports "invalid unused inodes count"
198 Details : If a new ldiskfs filesystem is created with the "uninit_groups"
199 feature and only a single inode is created in a group then the
200 "bg_unused_inodes" count is incorrectly updated. Creating a
201 second inode in that group would update it correctly.
203 --------------------------------------------------------------------------------
205 2007-09-27 Cluster File Systems, Inc. <info@clusterfs.com>
208 Severity : enhancement
210 Description: Add a FIEMAP(FIle Extent MAP) ioctl for ldiskfs
211 Details : FIEMAP ioctl will allow an application to efficiently fetch the
212 extent information of a file. It can be used to map logical blocks
213 in a file to physical blocks in the block device.
215 --------------------------------------------------------------------------------
217 2007-08-29 Cluster File Systems, Inc. <info@clusterfs.com>
223 Description: Multiple mount protection(MMP) support.
224 Details : This feature will protect the filesystem from being mounted more
225 than once simultaneously. It will also protect changes by e2fsprogs
226 to the filesystem if it is mounted. This assumes high importance
227 in a shared storage environment where multiple mounts can severely
228 corrupt the filesystem.
230 --------------------------------------------------------------------------------
232 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
234 * Initial release of ldiskfs as a separate package.
239 Description: Updated patchess for new RHEL4 kernel
240 Details : Add patch ext3-unlink-race.patch
241 Updated series file ldiskfs-2.6-rhel4.series