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| author | Christoph Hellwig <hch@infradead.org> | 2008-10-30 16:58:11 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 16:58:11 +1100 |
| commit | 8cc938fe4237e50bea4aa557ed53b06de2319d49 (patch) | |
| tree | 1b9dd352d423a573d96d5b1b311286a39232ef5b /fs/xfs/xfs_alloc.c | |
| parent | 91cca5df9bc85efdabfa645f51d54259ed09f4bf (diff) | |
| download | linux-8cc938fe4237e50bea4aa557ed53b06de2319d49.tar.gz linux-8cc938fe4237e50bea4aa557ed53b06de2319d49.tar.bz2 linux-8cc938fe4237e50bea4aa557ed53b06de2319d49.zip | |
[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 <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_alloc.c')
| -rw-r--r-- | fs/xfs/xfs_alloc.c | 21 |
1 files changed, 21 insertions, 0 deletions
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 @@ -155,6 +155,27 @@ xfs_alloc_update( } /* + * 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. */ |