linux-toradex.git/fs/xfs/xfs_ialloc_btree.h, branch v3.4

xfs: remove superflous inobt macros

2009-02-09T07:37:14+00:00

xfs_ialloc_btree.h has a a cuple of macros that only obsfucate the code
but don't provide any abstraction benefits.  This patches removes those
and cleans up the reamaining defintions up a little.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Dave Chinner

[XFS] Remove the rest of the macro-to-function indirections.

2009-01-16T06:10:42+00:00

Remove the last of the macros-defined-to-static-functions.

Signed-off-by: Eric Sandeen 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Lachlan McIlroy

[XFS] Always use struct xfs_btree_block instead of short / longform

2008-10-30T06:14:34+00:00

structures.

Always use the generic xfs_btree_block type instead of the short / long
structures. Add XFS_BTREE_SBLOCK_LEN / XFS_BTREE_LBLOCK_LEN defines for
the length of a short / long form block. The rationale for this is that we
will grow more btree block header variants to support CRCs and other RAS
information, and always accessing them through the same datatype with
unions for the short / long form pointers makes implementing this much
easier.

SGI-PV: 988146

SGI-Modid: xfs-linux-melb:xfs-kern:32300a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Donald Douwsma 
Signed-off-by: David Chinner 
Signed-off-by: Lachlan McIlroy

[XFS] cleanup btree record / key / ptr addressing macros.

2008-10-30T06:11:40+00:00

Replace the generic record / key / ptr addressing macros that use cpp
token pasting with simpler macros that do the job for just one given btree
type. The new macros lose the cur argument and thus can be used outside
the core btree code, but also gain an xfs_mount * argument to allow for
checking the CRC flag in the near future. Note that many of these macros
aren't actually used in the kernel code, but only in userspace (mostly in
xfs_repair).

SGI-PV: 988146

SGI-Modid: xfs-linux-melb:xfs-kern:32295a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Donald Douwsma 
Signed-off-by: David Chinner 
Signed-off-by: Lachlan McIlroy

[XFS] Cleanup maxrecs calculation.

2008-10-30T06:11:19+00:00

Clean up the way the maximum and minimum records for the btree blocks are
calculated. For the alloc and inobt btrees all the values are
pre-calculated in xfs_mount_common, and we switch the current loop around
the ugly generic macros that use cpp token pasting to generate type names
to two small helpers in normal C code. For the bmbt and bmdr trees these
helpers also exist, but can be called during runtime, too. Here we also
kill various macros dealing with them and inline the logic into the
get_minrecs / get_maxrecs / get_dmaxrecs methods in xfs_bmap_btree.c.

Note that all these new helpers take an xfs_mount * argument which will be
needed to determine the size of a btree block once we add support for
extended btree blocks with CRCs and other RAS information.

SGI-PV: 988146

SGI-Modid: xfs-linux-melb:xfs-kern:32292a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Donald Douwsma 
Signed-off-by: Lachlan McIlroy

[XFS] implement generic xfs_btree_get_rec

2008-10-30T05:58:11+00:00

Not really much reason to make it generic given that it's so small, but
this is the last non-method in xfs_alloc_btree.c and xfs_ialloc_btree.c,
so it makes the whole btree implementation more structured.

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32206a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Lachlan McIlroy 
Signed-off-by: Bill O'Donnell 
Signed-off-by: David Chinner

[XFS] implement generic xfs_btree_delete/delrec

2008-10-30T05:58:01+00:00

Make the btree delete code generic. Based on a patch from David Chinner
with lots of changes to follow the original btree implementations more
closely. While this loses some of the generic helper routines for
inserting/moving/removing records it also solves some of the one off bugs
in the original code and makes it easier to verify.

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32205a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Lachlan McIlroy 
Signed-off-by: Bill O'Donnell 
Signed-off-by: David Chinner

[XFS] implement generic xfs_btree_insert/insrec

2008-10-30T05:57:40+00:00

Make the btree insert code generic. Based on a patch from David Chinner
with lots of changes to follow the original btree implementations more
closely. While this loses some of the generic helper routines for
inserting/moving/removing records it also solves some of the one off bugs
in the original code and makes it easier to verify.

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32202a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Lachlan McIlroy 
Signed-off-by: Bill O'Donnell 
Signed-off-by: David Chinner

[XFS] implement generic xfs_btree_update

2008-10-30T05:56:32+00:00

From: Dave Chinner 

The most complicated part here is the lastrec tracking for the alloc
btree. Most logic is in the update_lastrec method which has to do some
hopefully good enough dirty magic to maintain it.

[hch: split out from bigger patch and a rework of the lastrec

logic]

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32194a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Lachlan McIlroy 
Signed-off-by: Bill O'Donnell 
Signed-off-by: David Chinner

[XFS] implement generic xfs_btree_lookup

2008-10-30T05:56:09+00:00

From: Dave Chinner 

[hch: split out from bigger patch and minor adaptions]

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32192a

Signed-off-by: Christoph Hellwig 
Signed-off-by: Lachlan McIlroy 
Signed-off-by: Bill O'Donnell 
Signed-off-by: David Chinner