Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / xfs / xfs_bmap_util.h

diff --git a/kernel/fs/xfs/xfs_bmap_util.h b/kernel/fs/xfs/xfs_bmap_util.h
new file mode 100644 (file)
index 0000000..af97d9a
--- /dev/null
+++ b/kernel/fs/xfs/xfs_bmap_util.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2000-2006 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __XFS_BMAP_UTIL_H__
+#define        __XFS_BMAP_UTIL_H__
+
+/* Kernel only BMAP related definitions and functions */
+
+struct xfs_bmbt_irec;
+struct xfs_bmap_free_item;
+struct xfs_ifork;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+struct xfs_bmalloca;
+
+int    xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
+int    xfs_bmap_eof(struct xfs_inode *ip, xfs_fileoff_t endoff,
+                    int whichfork, int *eof);
+int    xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
+                             int whichfork, int *count);
+int    xfs_bmap_punch_delalloc_range(struct xfs_inode *ip,
+               xfs_fileoff_t start_fsb, xfs_fileoff_t length);
+
+/* bmap to userspace formatter - copy to user & advance pointer */
+typedef int (*xfs_bmap_format_t)(void **, struct getbmapx *, int *);
+int    xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv,
+               xfs_bmap_format_t formatter, void *arg);
+
+/* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */
+void   xfs_bmap_del_free(struct xfs_bmap_free *flist,
+                         struct xfs_bmap_free_item *prev,
+                         struct xfs_bmap_free_item *free);
+int    xfs_bmap_extsize_align(struct xfs_mount *mp, struct xfs_bmbt_irec *gotp,
+                              struct xfs_bmbt_irec *prevp, xfs_extlen_t extsz,
+                              int rt, int eof, int delay, int convert,
+                              xfs_fileoff_t *offp, xfs_extlen_t *lenp);
+void   xfs_bmap_adjacent(struct xfs_bmalloca *ap);
+int    xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip,
+                            int whichfork, struct xfs_bmbt_irec *rec,
+                            int *is_empty);
+
+/* preallocation and hole punch interface */
+int    xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,
+                            xfs_off_t len, int alloc_type);
+int    xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,
+                           xfs_off_t len);
+int    xfs_zero_file_space(struct xfs_inode *ip, xfs_off_t offset,
+                           xfs_off_t len);
+int    xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset,
+                               xfs_off_t len);
+int    xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset,
+                               xfs_off_t len);
+
+/* EOF block manipulation functions */
+bool   xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
+int    xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip,
+                          bool need_iolock);
+
+int    xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
+                        struct xfs_swapext *sx);
+
+xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
+
+#endif /* __XFS_BMAP_UTIL_H__ */