/*
- * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * 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.
+ * 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.
*
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * 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_H__
-#define __XFS_BMAP_H__
+#define __XFS_BMAP_H__
struct getbmap;
struct xfs_bmbt_irec;
/*
* Header for free extent list.
*/
-typedef struct xfs_bmap_free
+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 */
} xfs_bmap_free_t;
-#define XFS_BMAP_MAX_NMAP 4
+#define XFS_BMAP_MAX_NMAP 4
/*
* Flags for xfs_bmapi
*/
-#define XFS_BMAPI_WRITE 0x001 /* write operation: allocate space */
+#define XFS_BMAPI_WRITE 0x001 /* write operation: allocate space */
#define XFS_BMAPI_DELAY 0x002 /* delayed write operation */
#define XFS_BMAPI_ENTIRE 0x004 /* return entire extent, not trimmed */
#define XFS_BMAPI_METADATA 0x008 /* mapping metadata not user data */
#define XFS_BMAPI_ATTRFORK 0x020 /* use attribute fork not data */
#define XFS_BMAPI_ASYNC 0x040 /* bunmapi xactions can be async */
#define XFS_BMAPI_RSVBLOCKS 0x080 /* OK to alloc. reserved data blocks */
-#define XFS_BMAPI_PREALLOC 0x100 /* preallocation op: unwritten space */
-#define XFS_BMAPI_IGSTATE 0x200 /* Ignore state - */
+#define XFS_BMAPI_PREALLOC 0x100 /* preallocation op: unwritten space */
+#define XFS_BMAPI_IGSTATE 0x200 /* Ignore state - */
/* combine contig. space */
-#define XFS_BMAPI_CONTIG 0x400 /* must allocate only one extent */
-#define XFS_BMAPI_DIRECT_IO 0x800 /* Flag from cxfs client, not used
- * by xfs directly. Indicates alloc
- * request is for direct I/O not
- * extent conversion by server */
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAPI_AFLAG)
-int xfs_bmapi_aflag(int w);
-#define XFS_BMAPI_AFLAG(w) xfs_bmapi_aflag(w)
-#else
-#define XFS_BMAPI_AFLAG(w) ((w) == XFS_ATTR_FORK ? XFS_BMAPI_ATTRFORK : 0)
-#endif
+#define XFS_BMAPI_CONTIG 0x400 /* must allocate only one extent */
-/*
- * Special values for xfs_bmbt_irec_t br_startblock field.
- */
-#define DELAYSTARTBLOCK ((xfs_fsblock_t)-1LL)
-#define HOLESTARTBLOCK ((xfs_fsblock_t)-2LL)
+#define XFS_BMAPI_AFLAG(w) xfs_bmapi_aflag(w)
+static inline int xfs_bmapi_aflag(int w)
+{
+ return (w == XFS_ATTR_FORK ? XFS_BMAPI_ATTRFORK : 0);
+}
/*
- * Trace operations for bmap extent tracing
+ * Special values for xfs_bmbt_irec_t br_startblock field.
*/
-#define XFS_BMAP_KTRACE_DELETE 1
-#define XFS_BMAP_KTRACE_INSERT 2
-#define XFS_BMAP_KTRACE_PRE_UP 3
-#define XFS_BMAP_KTRACE_POST_UP 4
-
-#define XFS_BMAP_TRACE_SIZE 4096 /* size of global trace buffer */
-#define XFS_BMAP_KTRACE_SIZE 32 /* size of per-inode trace buffer */
-
-#if defined(XFS_ALL_TRACE)
-#define XFS_BMAP_TRACE
-#endif
-
-#if !defined(DEBUG)
-#undef XFS_BMAP_TRACE
-#endif
-
+#define DELAYSTARTBLOCK ((xfs_fsblock_t)-1LL)
+#define HOLESTARTBLOCK ((xfs_fsblock_t)-2LL)
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_INIT)
-void xfs_bmap_init(xfs_bmap_free_t *flp, xfs_fsblock_t *fbp);
-#define XFS_BMAP_INIT(flp,fbp) xfs_bmap_init(flp,fbp)
-#else
-#define XFS_BMAP_INIT(flp,fbp) \
+#define XFS_BMAP_INIT(flp,fbp) xfs_bmap_init(flp,fbp)
+static inline void xfs_bmap_init(xfs_bmap_free_t *flp, xfs_fsblock_t *fbp)
+{
((flp)->xbf_first = NULL, (flp)->xbf_count = 0, \
- (flp)->xbf_low = 0, *(fbp) = NULLFSBLOCK)
-#endif
+ (flp)->xbf_low = 0, *(fbp) = NULLFSBLOCK);
+}
/*
* Argument structure for xfs_bmap_alloc.
xfs_fileoff_t off; /* offset in file filling in */
struct xfs_trans *tp; /* transaction pointer */
struct xfs_inode *ip; /* incore inode pointer */
- struct xfs_bmbt_irec *prevp; /* extent before the new one */
+ struct xfs_bmbt_irec *prevp; /* extent before the new one */
struct xfs_bmbt_irec *gotp; /* extent after, or delayed */
xfs_extlen_t alen; /* i/o length asked/allocated */
xfs_extlen_t total; /* total blocks needed for xaction */
- xfs_extlen_t minlen; /* mininum allocation size (blocks) */
+ xfs_extlen_t minlen; /* mininum allocation size (blocks) */
xfs_extlen_t minleft; /* amount must be left after alloc */
char eof; /* set if allocating past last extent */
- char wasdel; /* replacing a delayed allocation */
+ char wasdel; /* replacing a delayed allocation */
char userdata;/* set if is user data */
char low; /* low on space, using seq'l ags */
- char aeof; /* allocated space at eof */
+ char aeof; /* allocated space at eof */
} xfs_bmalloca_t;
#ifdef __KERNEL__
+
+#if defined(XFS_BMAP_TRACE)
+/*
+ * Trace operations for bmap extent tracing
+ */
+#define XFS_BMAP_KTRACE_DELETE 1
+#define XFS_BMAP_KTRACE_INSERT 2
+#define XFS_BMAP_KTRACE_PRE_UP 3
+#define XFS_BMAP_KTRACE_POST_UP 4
+
+#define XFS_BMAP_TRACE_SIZE 4096 /* size of global trace buffer */
+#define XFS_BMAP_KTRACE_SIZE 32 /* size of per-inode trace buffer */
+extern ktrace_t *xfs_bmap_trace_buf;
+
+/*
+ * Add bmap trace insert entries for all the contents of the extent list.
+ */
+void
+xfs_bmap_trace_exlist(
+ char *fname, /* function name */
+ struct xfs_inode *ip, /* incore inode pointer */
+ xfs_extnum_t cnt, /* count of entries in list */
+ int whichfork); /* data or attr fork */
+#else
+#define xfs_bmap_trace_exlist(f,ip,c,w)
+#endif
+
/*
* Convert inode from non-attributed to attributed.
* Must not be in a transaction, ip must not be locked.
int /* error code */
xfs_bmap_add_attrfork(
struct xfs_inode *ip, /* incore inode pointer */
- int rsvd); /* flag for reserved block allocation */
+ int size, /* space needed for new attribute */
+ int rsvd); /* flag for reserved block allocation */
/*
* Add the extent to the list of extents to be free at transaction end.
xfs_bmap_cancel(
xfs_bmap_free_t *flist); /* free list to clean up */
-/*
- * Routine to check if a specified inode is swap capable.
- */
-int
-xfs_bmap_check_swappable(
- struct xfs_inode *ip); /* incore inode */
-
/*
* Compute and fill in the value of the maximum depth of a bmap btree
- * in this filesystem. Done once, during mount.
+ * in this filesystem. Done once, during mount.
*/
void
xfs_bmap_compute_maxlevels(
struct xfs_inode *ip, /* incore inode */
int whichfork); /* data or attr fork */
-#if defined(XFS_BMAP_TRACE)
-/*
- * Add bmap trace insert entries for all the contents of the extent list.
- */
-void
-xfs_bmap_trace_exlist(
- char *fname, /* function name */
- struct xfs_inode *ip, /* incore inode pointer */
- xfs_extnum_t cnt, /* count of entries in list */
- int whichfork); /* data or attr fork */
-#else
-#define xfs_bmap_trace_exlist(f,ip,c,w)
-#endif
-
/*
* Map file blocks to filesystem blocks.
* File range is given by the bno/len pair.
/*
* Unmap (remove) blocks from a file.
* If nexts is nonzero then the number of extents to remove is limited to
- * that value. If not all extents in the block range can be removed then
+ * that value. If not all extents in the block range can be removed then
* *done is set.
*/
int /* error */
xfs_getbmap(
bhv_desc_t *bdp, /* XFS behavior descriptor*/
struct getbmap *bmv, /* user bmap structure */
- void *ap, /* pointer to user's array */
+ void __user *ap, /* pointer to user's array */
int iflags); /* interface flags */
-/*
- * Check the last inode extent to determine whether this allocation will result
- * in blocks being allocated at the end of the file. When we allocate new data
- * blocks at the end of the file which do not start at the previous data block,
- * we will try to align the new blocks at stripe unit boundaries.
- */
-int
-xfs_bmap_isaeof(
- struct xfs_inode *ip,
- xfs_fileoff_t off,
- int whichfork,
- char *aeof);
-
/*
* Check if the endoff is outside the last extent. If so the caller will grow
* the allocation to a stripe unit boundary
*/
int
xfs_bmap_eof(
- struct xfs_inode *ip,
- xfs_fileoff_t endoff,
- int whichfork,
- int *eof);
+ struct xfs_inode *ip,
+ xfs_fileoff_t endoff,
+ int whichfork,
+ int *eof);
/*
* Count fsblocks of the given fork.
int
xfs_bmap_count_blocks(
xfs_trans_t *tp,
- xfs_inode_t *ip,
+ struct xfs_inode *ip,
int whichfork,
int *count);
projects / thirdparty / xfsprogs-dev.git / blobdiff