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xfs: factor out code to find the longest free extent in the AG

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Signed-off-by: Dave Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Dave Chinner
2009-03-16 08:29:46 +01:00
committed by Christoph Hellwig
parent cb4c8cc1e9
commit 6cc87645e2
4 changed files with 31 additions and 22 deletions
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12
fs/xfs/xfs_bmap.c
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@@ -2712,9 +2712,6 @@ xfs_bmap_btalloc(
xfs_agnumber_t startag;
xfs_alloc_arg_t args;
xfs_extlen_t blen;
xfs_extlen_t delta;
xfs_extlen_t longest;
xfs_extlen_t need;
xfs_extlen_t nextminlen = 0;
xfs_perag_t *pag;
int nullfb; /* true if ap->firstblock isn't set */
@@ -2796,13 +2793,8 @@ xfs_bmap_btalloc(
* See xfs_alloc_fix_freelist...
*/
if (pag->pagf_init) {
need = XFS_MIN_FREELIST_PAG(pag, mp);
delta = need > pag->pagf_flcount ?
need - pag->pagf_flcount : 0;
longest = (pag->pagf_longest > delta) ?
(pag->pagf_longest - delta) :
(pag->pagf_flcount > 0 ||
pag->pagf_longest > 0);
xfs_extlen_t longest;
longest = xfs_alloc_longest_free_extent(mp, pag);
if (blen < longest)
blen = longest;
} else