X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_bmap.h;h=8e0d73d9ccc453557bc494cfe0158c60993cc43e;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=f1bc22fb26aec4abb63a7df717c22f40f7a3114a;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index f1bc22fb2..8e0d73d9c 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -1,39 +1,26 @@ /* - * Copyright (c) 2000-2003 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__ struct getbmap; struct xfs_bmbt_irec; +struct xfs_ifork; struct xfs_inode; struct xfs_mount; struct xfs_trans; @@ -76,13 +63,16 @@ typedef struct xfs_bmap_free #define XFS_BMAPI_IGSTATE 0x200 /* Ignore state - */ /* combine contig. space */ #define XFS_BMAPI_CONTIG 0x400 /* must allocate only one extent */ +/* XFS_BMAPI_DIRECT_IO 0x800 */ +#define XFS_BMAPI_CONVERT 0x1000 /* unwritten extent conversion - */ + /* need write cache flushing and no */ + /* additional allocation alignments */ -#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 +static inline int xfs_bmapi_aflag(int w) +{ + return (w == XFS_ATTR_FORK ? XFS_BMAPI_ATTRFORK : 0); +} /* * Special values for xfs_bmbt_irec_t br_startblock field. @@ -90,14 +80,12 @@ int xfs_bmapi_aflag(int w); #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) \ +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. @@ -118,7 +106,8 @@ typedef struct xfs_bmalloca { 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 */ + char conv; /* overwriting unwritten extents */ } xfs_bmalloca_t; #ifdef __KERNEL__ @@ -156,7 +145,8 @@ xfs_bmap_trace_exlist( 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. @@ -331,19 +321,6 @@ xfs_getbmap( 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 @@ -371,9 +348,21 @@ xfs_bmap_count_blocks( */ int xfs_check_nostate_extents( - xfs_bmbt_rec_t *ep, + struct xfs_ifork *ifp, + xfs_extnum_t idx, xfs_extnum_t num); +/* + * Search the extent records for the entry containing block bno. + * If bno lies in a hole, point to the next entry. If bno lies + * past eof, *eofp will be set, and *prevp will contain the last + * 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_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *, + xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *); + #endif /* __KERNEL__ */ #endif /* __XFS_BMAP_H__ */