Commit graph

16 commits

Author SHA1 Message Date
Steven Whitehouse
4340fe6253 [GFS2] Add generation number
This adds a generation number for the eventual use of NFS to the
ondisk inode. Its backward compatible with the current code since
it doesn't really matter what the generation number is to start with,
and indeed since its set to zero, due to it being taken from padding
in both the inode and rgrp header, it should be fine.

The eventual plan is to use this rather than no_formal_ino in the
NFS filehandles. At that point no_formal_ino will be unused.

At the same time we also add a releasepages call back to the
"normal" address space for gfs2 inodes. Also I've removed a
one-linrer function thats not required any more.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-07-11 09:46:33 -04:00
Adrian Bunk
43f5d210a0 [GFS2] [-mm patch] fs/gfs2/: make code static
This patch makes the following needlessly global code static:
- eaops.c: struct gfs2_security_eaops
- rgrp.c: gfs2_free_uninit_di()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-06-22 11:16:40 -04:00
Steven Whitehouse
3a8476dda1 [GFS2] Remove debugging printks
A few of my printks slipped through last time. Also fix a couple of
minor bugs.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-06-19 09:10:39 -04:00
Steven Whitehouse
feaa7bba02 [GFS2] Fix unlinked file handling
This patch fixes the way we have been dealing with unlinked,
but still open files. It removes all limits (other than memory
for inodes, as per every other filesystem) on numbers of these
which we can support on GFS2. It also means that (like other
fs) its the responsibility of the last process to close the file
to deallocate the storage, rather than the person who did the
unlinking. Note that with GFS2, those two events might take place
on different nodes.

Also there are a number of other changes:

 o We use the Linux inode subsystem as it was intended to be
used, wrt allocating GFS2 inodes
 o The Linux inode cache is now the point which we use for
local enforcement of only holding one copy of the inode in
core at once (previous to this we used the glock layer).
 o We no longer use the unlinked "special" file. We just ignore it
completely. This makes unlinking more efficient.
 o We now use the 4th block allocation state. The previously unused
state is used to track unlinked but still open inodes.
 o gfs2_inoded is no longer needed
 o Several fields are now no longer needed (and removed) from the in
core struct gfs2_inode
 o Several fields are no longer needed (and removed) from the in core
superblock

There are a number of future possible optimisations and clean ups
which have been made possible by this patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-06-14 15:32:57 -04:00
Steven Whitehouse
382066da25 [GFS2] Casts for printing 64bit numbers
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-05-24 10:22:09 -04:00
Steven Whitehouse
3a8a9a1034 [GFS2] Update copyright date to 2006
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-05-18 15:09:15 -04:00
Steven Whitehouse
bd8968010a [GFS2] Remove semaphore.h from C files
We no longer use semaphores, everything has been converted to
mutex or rwsem, so we don't need to include this header any more.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-05-18 14:54:58 -04:00
Steven Whitehouse
3efd7534a8 [GFS2] Make newly moved functions static
The functions moved from bits.c can now be made static.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-05-18 14:02:52 -04:00
Steven Whitehouse
88c8ab1fcb [GFS2] Merge bits.[ch] into rgrp.c
Since they are small and will be inlined by the complier,
it makes sense to merge the contents of bits.[ch] into
rgrp.c

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-05-18 13:52:39 -04:00
Steven Whitehouse
fd88de569b [GFS2] Readpages support
This adds readpages support (and also corrects a small bug in
the readpage error path at the same time). Hopefully this will
improve performance by allowing GFS to submit larger lumps of
I/O at a time.

In order to simplify the setting of BH_Boundary, it currently gets
set when we hit the end of a indirect pointer block. There is
always a boundary at this point with the current allocation code.
It doesn't get all the boundaries right though, so there is still
room for improvement in this.

See comments in fs/gfs2/ops_address.c for further information about
readpages with GFS2.

Signed-off-by: Steven Whitehouse
2006-05-05 16:59:11 -04:00
Steven Whitehouse
5c676f6d35 [GFS2] Macros removal in gfs2.h
As suggested by Pekka Enberg <penberg@cs.helsinki.fi>.

The DIV_RU macro is renamed DIV_ROUND_UP and and moved to kernel.h
The other macros are gone from gfs2.h as (although not requested
by Pekka Enberg) are a number of included header file which are now
included individually. The inode number comparison function is
now an inline function.

The DT2IF and IF2DT may be addressed in a future patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-02-27 17:23:27 -05:00
Steven Whitehouse
568f4c9659 [GFS2] 80 Column audit of GFS2
Requested by:
Prarit Bhargava <prarit@redhat.com>

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-02-27 12:00:42 -05:00
Steven Whitehouse
f55ab26a8f [GFS2] Use mutices rather than semaphores
As well as a number of minor bug fixes, this patch changes GFS
to use mutices rather than semaphores. This results in better
information in case there are any locking problems.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-02-21 12:51:39 +00:00
Steven Whitehouse
f42faf4fa4 [GFS2] Add gfs2_internal_read()
Add the new external read function. Its temporarily in jdata.c
even though the protoype is in ops_file.h - this will change
shortly. The current implementation will change to a page cache
one when that happens.

In order to effect the above changes, the various internal inodes
now have Linux inodes attached to them. We keep the references to
the Linux inodes, rather than the gfs2_inodes in the super block.

In order to get everything to work correctly I've had to reorder
the init sequence on mount (which I should probably have done
earlier when .gfs2_admin was made visible).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-01-30 18:34:10 +00:00
Steven Whitehouse
d4e9c4c3bf [GFS2] Add an additional argument to gfs2_trans_add_bh()
This adds an extra argument to gfs2_trans_add_bh() to indicate whether the
bh being added to the transaction is metadata or data. Its currently unused
since all existing callers set it to 1 (metadata) but following patches will
make use of it.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-01-18 11:19:28 +00:00
David Teigland
b3b94faa5f [GFS2] The core of GFS2
This patch contains all the core files for GFS2.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-01-16 16:50:04 +00:00