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authorChristoph Hellwig <hch@infradead.org>2008-10-30 16:56:09 +1100
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 16:56:09 +1100
commitfe033cc848489851f0c7de48f0b1bab5d744ad8a (patch)
treef69709f4e9c125c528a699c32f439b53ea0969f3 /fs/xfs/xfs_bmap.c
parent8df4da4a0a642d3a016028c0d922bcb4d5a4a6d7 (diff)
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[XFS] implement generic xfs_btree_lookup
From: Dave Chinner <dgc@sgi.com> [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32192a 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_bmap.c')
-rw-r--r--fs/xfs/xfs_bmap.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index bdbab54948f..1296b4102e9 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -402,6 +402,35 @@ xfs_bmap_disk_count_leaves(
* Bmap internal routines.
*/
+STATIC int /* error */
+xfs_bmbt_lookup_eq(
+ struct xfs_btree_cur *cur,
+ xfs_fileoff_t off,
+ xfs_fsblock_t bno,
+ xfs_filblks_t len,
+ int *stat) /* success/failure */
+{
+ cur->bc_rec.b.br_startoff = off;
+ cur->bc_rec.b.br_startblock = bno;
+ cur->bc_rec.b.br_blockcount = len;
+ return xfs_btree_lookup(cur, XFS_LOOKUP_EQ, stat);
+}
+
+STATIC int /* error */
+xfs_bmbt_lookup_ge(
+ struct xfs_btree_cur *cur,
+ xfs_fileoff_t off,
+ xfs_fsblock_t bno,
+ xfs_filblks_t len,
+ int *stat) /* success/failure */
+{
+ cur->bc_rec.b.br_startoff = off;
+ cur->bc_rec.b.br_startblock = bno;
+ cur->bc_rec.b.br_blockcount = len;
+ return xfs_btree_lookup(cur, XFS_LOOKUP_GE, stat);
+}
+
+
/*
* Called from xfs_bmap_add_attrfork to handle btree format files.
*/