Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...

[mv-sheeva.git] / fs / xfs / xfs_alloc.h

diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 6d05199b667cea3c72576750924a8ee8a63effcc..0ab56b32c7eb70484ed4a7fdcfdbac3595c1ecab 100644 (file)
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -19,6 +19,7 @@
 #define        __XFS_ALLOC_H__
 
 struct xfs_buf;
+struct xfs_btree_cur;
 struct xfs_mount;
 struct xfs_perag;
 struct xfs_trans;
@@ -27,16 +28,16 @@ struct xfs_busy_extent;
 /*
  * Freespace allocation types.  Argument to xfs_alloc_[v]extent.
  */
-typedef enum xfs_alloctype
-{
-       XFS_ALLOCTYPE_ANY_AG,           /* allocate anywhere, use rotor */
-       XFS_ALLOCTYPE_FIRST_AG,         /* ... start at ag 0 */
-       XFS_ALLOCTYPE_START_AG,         /* anywhere, start in this a.g. */
-       XFS_ALLOCTYPE_THIS_AG,          /* anywhere in this a.g. */
-       XFS_ALLOCTYPE_START_BNO,        /* near this block else anywhere */
-       XFS_ALLOCTYPE_NEAR_BNO,         /* in this a.g. and near this block */
-       XFS_ALLOCTYPE_THIS_BNO          /* at exactly this block */
-} xfs_alloctype_t;
+#define XFS_ALLOCTYPE_ANY_AG   0x01    /* allocate anywhere, use rotor */
+#define XFS_ALLOCTYPE_FIRST_AG 0x02    /* ... start at ag 0 */
+#define XFS_ALLOCTYPE_START_AG 0x04    /* anywhere, start in this a.g. */
+#define XFS_ALLOCTYPE_THIS_AG  0x08    /* anywhere in this a.g. */
+#define XFS_ALLOCTYPE_START_BNO        0x10    /* near this block else anywhere */
+#define XFS_ALLOCTYPE_NEAR_BNO 0x20    /* in this a.g. and near this block */
+#define XFS_ALLOCTYPE_THIS_BNO 0x40    /* at exactly this block */
+
+/* this should become an enum again when the tracing code is fixed */
+typedef unsigned int xfs_alloctype_t;
 
 #define XFS_ALLOC_TYPES \
        { XFS_ALLOCTYPE_ANY_AG,         "ANY_AG" }, \
@@ -118,16 +119,16 @@ xfs_alloc_longest_free_extent(struct xfs_mount *mp,
                struct xfs_perag *pag);
 
 #ifdef __KERNEL__
-
 void
-xfs_alloc_busy_insert(xfs_trans_t *tp,
-               xfs_agnumber_t agno,
-               xfs_agblock_t bno,
-               xfs_extlen_t len);
+xfs_alloc_busy_insert(struct xfs_trans *tp, xfs_agnumber_t agno,
+       xfs_agblock_t bno, xfs_extlen_t len);
 
 void
 xfs_alloc_busy_clear(struct xfs_mount *mp, struct xfs_busy_extent *busyp);
 
+int
+xfs_alloc_busy_search(struct xfs_mount *mp, xfs_agnumber_t agno,
+       xfs_agblock_t bno, xfs_extlen_t len);
 #endif /* __KERNEL__ */
 
 /*
@@ -205,4 +206,18 @@ xfs_free_extent(
        xfs_fsblock_t   bno,    /* starting block number of extent */
        xfs_extlen_t    len);   /* length of extent */
 
+int                                    /* error */
+xfs_alloc_lookup_le(
+       struct xfs_btree_cur    *cur,   /* btree cursor */
+       xfs_agblock_t           bno,    /* starting block of extent */
+       xfs_extlen_t            len,    /* length of extent */
+       int                     *stat); /* success/failure */
+
+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 */
+
 #endif /* __XFS_ALLOC_H__ */