struct xfs_mount;
struct xfs_trans;
+extern kmem_zone_t *xfs_bmap_free_item_zone;
+
/*
* DELTA: describe a change to the in-core extent list.
*
/*
* Header for free extent list.
+ *
+ * xbf_low is used by the allocator to activate the lowspace algorithm -
+ * when free space is running low the extent allocator may choose to
+ * allocate an extent from an AG without leaving sufficient space for
+ * a btree split when inserting the new extent. In this case the allocator
+ * will enable the lowspace algorithm which is supposed to allow further
+ * allocations (such as btree splits and newroots) to allocate from
+ * sequential AGs. In order to avoid locking AGs out of order the lowspace
+ * algorithm will start searching for free space from AG 0. If the correct
+ * transaction reservations have been made then this algorithm will eventually
+ * find all the space it needs.
*/
typedef struct xfs_bmap_free
{
xfs_bmap_free_item_t *xbf_first; /* list of to-be-free extents */
int xbf_count; /* count of items on list */
- int xbf_low; /* kludge: alloc in low mode */
+ int xbf_low; /* alloc in low mode */
} xfs_bmap_free_t;
#define XFS_BMAP_MAX_NMAP 4
xfs_extnum_t cnt, /* count of entries in list */
int whichfork); /* data or attr fork */
#define XFS_BMAP_TRACE_EXLIST(ip,c,w) \
- xfs_bmap_trace_exlist(__FUNCTION__,ip,c,w)
+ xfs_bmap_trace_exlist(__func__,ip,c,w)
#else
#define XFS_BMAP_TRACE_EXLIST(ip,c,w)
#endif
*/
int /* error code */
xfs_getbmap(
- bhv_desc_t *bdp, /* XFS behavior descriptor*/
+ xfs_inode_t *ip,
struct getbmap *bmv, /* user bmap structure */
void __user *ap, /* pointer to user's array */
int iflags); /* interface flags */
* entry (null if none). Else, *lastxp will be set to the index
* of the found entry; *gotp will contain the entry.
*/
-xfs_bmbt_rec_t *
+xfs_bmbt_rec_host_t *
xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *,
xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);