From 8cc938fe4237e50bea4aa557ed53b06de2319d49 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 30 Oct 2008 16:58:11 +1100 Subject: [XFS] implement generic xfs_btree_get_rec 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 --- fs/xfs/xfs_alloc.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'fs/xfs/xfs_alloc.c') diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index e9c70249d2c5..54fa69e27761 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -154,6 +154,27 @@ xfs_alloc_update( return xfs_btree_update(cur, &rec); } +/* + * Get the data from the pointed-to record. + */ +STATIC int /* error */ +xfs_alloc_get_rec( + struct xfs_btree_cur *cur, /* btree cursor */ + xfs_agblock_t *bno, /* output: starting block of extent */ + xfs_extlen_t *len, /* output: length of extent */ + int *stat) /* output: success/failure */ +{ + union xfs_btree_rec *rec; + int error; + + error = xfs_btree_get_rec(cur, &rec, stat); + if (!error && *stat == 1) { + *bno = be32_to_cpu(rec->alloc.ar_startblock); + *len = be32_to_cpu(rec->alloc.ar_blockcount); + } + return error; +} + /* * Compute aligned version of the found extent. * Takes alignment and min length into account. -- cgit v1.2.2