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path: root/fs/xfs/xfs_btree.c
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2009-01-22Long btree pointers are still 64 bit on diskDave Chinner
[XFS] Long btree pointers are still 64 bit on disk On 32 bit machines with CONFIG_LBD=n, XFS reduces the in memory size of xfs_fsblock_t to 32 bits so that it will fit within 32 bit addressing. However, the disk format for long btree pointers are still 64 bits in size. The recent btree rewrite failed to take this into account when initialising new btree blocks, setting sibling pointers to NULL and checking if they are NULL. Hence checking whether a 64 bit NULL was the same as a 32 bit NULL was failingi resulting in NULL sibling pointers failing to be detected correctly. This showed up as WANT_CORRUPTED_GOTO shutdowns in xfs_btree_delrec. Fix this by making all the comparisons and setting of long pointer btree NULL blocks to the disk format, not the in memory format. i.e. use NULLDFSBNO. Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Reported-by: Jacek Luczak <difrost.kernel@gmail.com> Reported-by: Danny ter Haar <dth@dth.net> Tested-by: Jacek Luczak <difrost.kernel@gmail.com> Reviewed-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Felix Blyakher <felixb@sgi.com>
2009-01-19[XFS] Remove the rest of the macro-to-function indirections.Eric Sandeen
Remove the last of the macros-defined-to-static-functions. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2009-01-09[XFS] fix compile of xfs_btree_readahead_lblock on m68kChristoph Hellwig
Change the left/right variables to the proper always 64bit xfs_dfsbo_t type because otherwise compilation fails for Geert on m68k without CONFIG_LBD: | fs/xfs/xfs_btree.c: In function 'xfs_btree_readahead_lblock': | fs/xfs/xfs_btree.c:736: warning: comparison is always true due to limited range of data type | fs/xfs/xfs_btree.c:741: warning: comparison is always true due to limited range of data type Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-10-30[XFS] Always use struct xfs_btree_block instead of short / longformChristoph Hellwig
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 <hch@infradead.org> Signed-off-by: Donald Douwsma <donaldd@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-10-30[XFS] Make xfs_btree_check_ptr() debug-only code.Lachlan McIlroy
SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32224a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
2008-10-30[XFS] mark various functions in xfs_btree.c staticChristoph Hellwig
Lots of functionality in xfs_btree.c isn't needed by callers outside of this file anymore, so mark these functions static. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32209a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add keys_inorder and recs_inorder btree methodsChristoph Hellwig
Add methods to check whether two keys/records are in the righ order. This replaces the xfs_btree_check_key and xfs_btree_check_rec methods. For the callers from xfs_bmap.c just opencode the bmbt-specific asserts. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32208a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] kill xfs_bmbt_log_block and xfs_bmbt_log_recsChristoph Hellwig
These are equivalent to the xfs_btree_* versions, and the only remaining caller can be switched to the generic one after they are exported. Also remove some now dead infrastructure in xfs_bmap_btree.c. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32207a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_get_recChristoph Hellwig
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 <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_delete/delrecChristoph Hellwig
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 <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] move xfs_bmbt_killroot to common codeChristoph Hellwig
xfs_bmbt_killroot is a mostly generic implementation of moving from a real block based root to an inode based root. So move it to xfs_btree.c where it can use all the nice infrastructure there and make it pointer size agnostic The new name for it is xfs_btree_kill_iroot, following the old naming but making it clear we're dealing with the root in inode case here, and to avoid confusion with xfs_btree_new_root which is used for the not inode rooted case. I've also added a comment describing what it does and why it's named the way it is. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32203a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_insert/insrecChristoph Hellwig
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 <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] move xfs_bmbt_newroot to common codeChristoph Hellwig
xfs_bmbt_newroot is a mostly generic implementation of moving from an inode root to a real block based root. So move it to xfs_btree.c where it can use all the nice infrastructure there and make it pointer size agnostic The new name for it is xfs_btree_new_iroot, following the old naming but making it clear we're dealing with the root in inode case here, and to avoid confusion with xfs_btree_new_root which is used for the not inode rooted case. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32201a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement semi-generic xfs_btree_new_rootChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Add a xfs_btree_new_root helper for the alloc and ialloc btrees. The bmap btree needs it's own version and is not converted. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32200a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_splitChristoph Hellwig
Make the btree split 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:32198a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_lshiftChristoph Hellwig
Make the btree left shift 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:32197a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_rshiftChristoph Hellwig
Make the btree right shift 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:32196a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_updateChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> 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 <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_updkeyChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Note that there are many > 80 char lines introduced due to the xfs_btree_key casts. But the places where this happens is throw-away code once the whole btree code gets merged into a common implementation. The same is true for the temporary xfs_alloc_log_keys define to the new name. All old users will be gone after a few patches. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32193a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_lookupChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> [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 <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_decrementChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32191a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_incrementChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Because this is the first major generic btree routine this patch includes some infrastrucure, first a few routines to deal with a btree block that can be either in short or long form, second xfs_btree_read_buf_block, which is the new central routine to read a btree block given a cursor, and third the new xfs_btree_ptr_addr routine to calculate the address for a given btree pointer record. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32190a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add helpers for addressing entities inside a btree blockChristoph Hellwig
Add new helpers in xfs_btree.c to find the record, key and block pointer entries inside a btree block. To implement this genericly the ->get_maxrecs methods and two new xfs_btree_ops entries for the key and record sizes are used. Also add a big comment describing how the addressing inside a btree block works. Note that these helpers are unused until users are introduced in the next patches and this patch will thus cause some harmless compiler warnings. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32189a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add get_maxrecs btree operationChristoph Hellwig
Factor xfs_btree_maxrecs into a per-btree operation. The get_maxrecs method is based on a patch from Dave Chinner. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32188a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] refactor btree validation helpersChristoph Hellwig
Move the various btree validation helpers around in xfs_btree.c so that they are close to each other and in common #ifdef DEBUG sections. Also add a new xfs_btree_check_ptr helper to check a btree ptr that can be either long or short form. Split out from a bigger patch from Dave Chinner with various small changes applied by me. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32183a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] refactor xfs_btree_readaheadChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Refactor xfs_btree_readahead to make it more readable: (a) remove the inline xfs_btree_readahead wrapper and move all checks out of line into the main routine. (b) factor out helpers for short/long form btrees (c) move check for root in inodes from the callers into xfs_btree_readahead [hch: split out from a big patch and minor cleanups] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32182a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add a long pointers flag to xfs_btree_curChristoph Hellwig
Add a flag to the xfs btree cursor when using long (64bit) block pointers instead of checking btnum == XFS_BTNUM_BMAP. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32181a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] make btree root in inode support genericChristoph Hellwig
The bmap btree is rooted in the inode and not in a disk block. Make the support for this feature more generic by adding a btree flag to for this feature instead of relying on the XFS_BTNUM_BMAP btnum check. Also clean up xfs_btree_get_block where this new flag is used. Based upon a patch from Dave Chinner. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32180a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] split up xfs_btree_init_cursorChristoph Hellwig
xfs_btree_init_cursor contains close to little shared code for the different btrees and will get even more non-common code in the future. Split it up into one routine per btree type. Because xfs_btree_dup_cursor needs to call the init routine for a generic btree cursor add a new btree operation vector that contains a dup_cursor method that initializes a new cursor based on an existing one. The btree operations vector is based on an idea and code from Dave Chinner and will grow more entries later during this series. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32176a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] kill struct xfs_btree_hdrChristoph Hellwig
This type is only embedded in struct xfs_btree_block and never used directly. By moving the fields directly into struct xfs_btree_block a lot of the macros for struct xfs_btree_sblock and struct xfs_btree_lblock can be used for struct xfs_btree_block too now which helps greatly with some of the migrations during implementing the generic btree code. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32174a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-08-13[XFS] Use the same btree_cur union member for alloc and inobt trees.Christoph Hellwig
The alloc and inobt btree use the same agbp/agno pair in the btree_cur union. Make them use the same bc_private.a union member so that code for these two short form btree implementations can be shared. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31788a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-08-13[XFS] small cleanups in xfs_btree.cChristoph Hellwig
Remove unneeded xfs_btree_get_block forward declaration. Move xfs_btree_firstrec next to xfs_btree_lastrec. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31787a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2006-09-28[XFS] endianess annotations for xfs_bmbt_key Trivial as there are noChristoph Hellwig
incore users. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26561a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] endianess annotations for xfs_inobt_rec_t / xfs_inobt_key_tChristoph Hellwig
SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26556a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-06-20[XFS] Remove version 1 directory code. Never functioned on Linux, justNathan Scott
pure bloat. SGI-PV: 952969 SGI-Modid: xfs-linux-melb:xfs-kern:26251a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Endianess annotations for various allocator data structuresChristoph Hellwig
SGI-PV: 943272 SGI-Modid: xfs-linux:xfs-kern:201006a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Update license/copyright notices to match the prefered SGINathan Scott
boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Remove xfs_macros.c, xfs_macros.h, rework headers a whole lot.Nathan Scott
SGI-PV: 943122 SGI-Modid: xfs-linux:xfs-kern:23901a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-06-21[XFS] Fix up some warning fallout from functions made staticEric Sandeen
SGI-PV: 936255 SGI-Modid: xfs-linux:xfs-kern:193691a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-06-21[XFS] mark various symbols static Patch from Adrian BunkChristoph Hellwig
SGI-PV: 936255 SGI-Modid: xfs-linux:xfs-kern:192760a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!