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[XFS] implement generic xfs_btree_delete/delrec

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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>
This commit is contained in:
Christoph Hellwig
2008-10-30 16:58:01 +11:00
committed by Lachlan McIlroy
parent d4b3a4b7dd
commit 91cca5df9b
11 changed files with 723 additions and 1839 deletions
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7
fs/xfs/xfs_alloc_btree.h
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@ -94,13 +94,6 @@ typedef struct xfs_btree_sblock xfs_alloc_block_t;
#define XFS_ALLOC_PTR_ADDR(bb,i,cur) \
XFS_BTREE_PTR_ADDR(xfs_alloc, bb, i, XFS_ALLOC_BLOCK_MAXRECS(1, cur))
/*
* Delete the record pointed to by cur.
* The cursor refers to the place where the record was (could be inserted)
* when the operation returns.
*/
extern int xfs_alloc_delete(struct xfs_btree_cur *cur, int *stat);
/*
* Get the data from the pointed-to record.
*/