user/sven/linux.git/include/linux/gfs2_ondisk.h, branch v3.0.45

GFS2: Remove old, unused linked list code from quota

2010-03-01T14:08:10Z

This is the kernel portion of the patch-set for upstream gfs2, to remove the quota-linked-list stuff and replace it with fiemap-based traversal of the quota file. The corresponding userland fixes have been pushed to STABLE3 and master branches of cluster.git and gfs2-utils.git respectively (Refer Red Hat bug #536902). Signed-off-by: Abhi Das Signed-off-by: Steven Whitehouse

GFS2: Tag all metadata with jid

2009-12-03T11:58:47Z

There are two spare field in the header common to all GFS2 metadata. One is just the right size to fit a journal id in it, and this patch updates the journal code so that each time a metadata block is modified, we tag it with the journal id of the node which is performing the modification. The reason for this is that it should make it much easier to debug issues which arise if we can tell which node was the last to modify a particular metadata block. Since the field is updated before the block is written into the journal, each journal should only contain metadata which is tagged with its own journal id. The one exception to this is the journal header block, which might have a different node's id in it, if that journal was recovered by another node in the cluster. Thus each journal will contain a record of which nodes recovered it, via the journal header. The other field in the metadata header could potentially be used to hold information about what kind of operation was performed, but for the time being we just zero it on each transaction so that if we use it for that in future, we'll know that the information (where it exists) is reliable. I did consider using the other field to hold the journal sequence number, however since in GFS2's journaling we write the modified data into the journal and not the original data, this gives no information as to what action caused the modification, so I think we can probably come up with a better use for those 64 bits in the future. Signed-off-by: Steven Whitehouse

GFS2: Add explanation of extended attr on-disk format

2009-08-25T12:44:04Z

Some useful info regarding the on-disk representation of GFS2 extended attributes. Signed-off-by: Steven Whitehouse

headers_check fix: linux/gfs2_ondisk.h

2009-01-30T18:20:12Z

fix the following 'make headers_check' warning: usr/include/linux/gfs2_ondisk.h:109: found __[us]{8,16,32,64} type without #include Signed-off-by: Jaswinder Singh Rajput

GFS2: Add UUID to GFS2 sb

2008-09-22T06:29:31Z

This patch adds a UUID to the GFS2 sb structure. This field is not actually referenced from kernel space at all, but is added for completeness and due to the userland tools which get their on-disk structure information from the gfs2_ondisk.h header file. Since we have to be backwards compatible, we will assume that any GFS2 sb for which the UUID is all 0 does not have a UUID as such. We should then be (after some userland changes) able to support the -U mount option. This addresses Fedora bugzilla #242689 Signed-off-by: Steven Whitehouse

[GFS2] Fix quota do_list operation hang

2007-10-10T07:55:27Z

This is the filesystem part of the patches to fix this bz. There are additional userland patches (gfs2_quota, libgfs2) for the complete solution. This patch adds a new field qu_ll_next to the gfs2_quota structure. This field allows us to create linked lists of quotas in the ondisk quota inode. Instead of scanning through the entire sparse quota file for valid quotas, we can now simply walk through the user and group quota linked lists to perform the do_list operation. Signed-off-by: Abhijith Das Signed-off-by: Steven Whitehouse

[GFS2] Add nanosecond timestamp feature

2007-07-09T07:23:12Z

This adds a nanosecond timestamp feature to the GFS2 filesystem. Due to the way that the on-disk format works, older filesystems will just appear to have this field set to zero. When mounted by an older version of GFS2, the filesystem will simply ignore the extra fields so that it will again appear to have whole second resolution, so that its trivially backward compatible. Signed-off-by: Steven Whitehouse

[GFS2] Fix sign problem in quota/statfs and cleanup _host structures

2007-07-09T07:23:10Z

This patch fixes some sign issues which were accidentally introduced into the quota & statfs code during the endianess annotation process. Also included is a general clean up which moves all of the _host structures out of gfs2_ondisk.h (where they should not have been to start with) and into the places where they are actually used (often only one place). Also those _host structures which are not required any more are removed entirely (which is the eventual plan for all of them). The conversion routines from ondisk.c are also moved into the places where they are actually used, which for almost every one, was just one single place, so all those are now static functions. This also cleans up the end of gfs2_ondisk.h which no longer needs the #ifdef __KERNEL__. The net result is a reduction of about 100 lines of code, many functions now marked static plus the bug fixes as mentioned above. For good measure I ran the code through sparse after making these changes to check that there are no warnings generated. This fixes Red Hat bz #239686 Signed-off-by: Steven Whitehouse

[GFS2] Quotas non-functional - fix another bug

2007-07-09T07:23:01Z

This patch fixes a bug where gfs2 was writing update quota usage information to the wrong location in the quota file. Signed-off-by: Abhijith Das Signed-off-by: Steven Whitehouse

[GFS2] latest gfs2-nmw headers break userland build

2007-07-09T07:22:47Z

2e8701a15cd6f7c95e74d6660615a69b09e453ef commit breaks libgfs2 build: gcc -Wall -I/usr/src/ubuntu/mypkgs/rhcluster/cluster/config -DHELPER_PROGRAM -D_FILE_OFFSET_BITS=64 -DGFS2_RELEASE_NAME=\"2.0\" -ggdb -I/usr/include -I../include -I../libgfs2 -c -o gfs2hex.o gfs2hex.c In file included from hexedit.h:22, from gfs2hex.c:27: /usr/include/linux/gfs2_ondisk.h:505: error: expected specifier-qualifier-list before ‘u32’ make[2]: *** [gfs2hex.o] Error 1 make[2]: Leaving directory `/usr/src/ubuntu/mypkgs/rhcluster/cluster/gfs2/edit' make[1]: *** [all] Error 2 make[1]: Leaving directory `/usr/src/ubuntu/mypkgs/rhcluster/cluster/gfs2' make: *** [gfs2] Error 2 Signed-off-by: Fabio Massimo Di Nitto Signed-off-by: Steven Whitehouse