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| author | Christoph Hellwig <hch@infradead.org> | 2008-10-30 16:54:43 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 16:54:43 +1100 |
| commit | b524bfeee2152fa64b6210f28ced80489b9d2439 (patch) | |
| tree | 226355f2fc34b50975c9c756a211446901dbecbe /fs/xfs/xfs_btree.h | |
| parent | e99ab90d6a9e8ac92f05d2c31d44aa7feee15394 (diff) | |
| download | lwn-b524bfeee2152fa64b6210f28ced80489b9d2439.tar.gz lwn-b524bfeee2152fa64b6210f28ced80489b9d2439.zip | |
[XFS] refactor xfs_btree_readahead
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>
Diffstat (limited to 'fs/xfs/xfs_btree.h')
| -rw-r--r-- | fs/xfs/xfs_btree.h | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index dd93fd39c56a..8be838f0154a 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -421,23 +421,10 @@ xfs_btree_reada_bufs( * Bits in lr are set from XFS_BTCUR_{LEFT,RIGHT}RA. */ int /* readahead block count */ -xfs_btree_readahead_core( - xfs_btree_cur_t *cur, /* btree cursor */ - int lev, /* level in btree */ - int lr); /* left/right bits */ - -static inline int /* readahead block count */ xfs_btree_readahead( xfs_btree_cur_t *cur, /* btree cursor */ int lev, /* level in btree */ - int lr) /* left/right bits */ -{ - if ((cur->bc_ra[lev] | lr) == cur->bc_ra[lev]) - return 0; - - return xfs_btree_readahead_core(cur, lev, lr); -} - + int lr); /* left/right bits */ /* * Set the buffer for level "lev" in the cursor to bp, releasing |