diff options
Diffstat (limited to 'fs/xfs/xfs_da_btree.h')
| -rw-r--r-- | fs/xfs/xfs_da_btree.h | 108 |
1 files changed, 23 insertions, 85 deletions
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h index 3a9b9e809c602..41352113721a5 100644 --- a/fs/xfs/xfs_da_btree.h +++ b/fs/xfs/xfs_da_btree.h @@ -1,33 +1,19 @@ /* - * Copyright (c) 2000, 2002 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) 2000,2002,2005 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_DA_BTREE_H__ #define __XFS_DA_BTREE_H__ @@ -92,72 +78,24 @@ typedef struct xfs_da_node_entry xfs_da_node_entry_t; #define XFS_DA_MAXHASH ((xfs_dahash_t)-1) /* largest valid hash value */ -/* - * Macros used by directory code to interface to the filesystem. - */ -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LBSIZE) -int xfs_lbsize(struct xfs_mount *mp); -#define XFS_LBSIZE(mp) xfs_lbsize(mp) -#else -#define XFS_LBSIZE(mp) ((mp)->m_sb.sb_blocksize) -#endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LBLOG) -int xfs_lblog(struct xfs_mount *mp); -#define XFS_LBLOG(mp) xfs_lblog(mp) -#else -#define XFS_LBLOG(mp) ((mp)->m_sb.sb_blocklog) -#endif +#define XFS_LBSIZE(mp) (mp)->m_sb.sb_blocksize +#define XFS_LBLOG(mp) (mp)->m_sb.sb_blocklog -/* - * Macros used by directory code to interface to the kernel - */ - -/* - * Macros used to manipulate directory off_t's - */ -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_MAKE_BNOENTRY) -__uint32_t xfs_da_make_bnoentry(struct xfs_mount *mp, xfs_dablk_t bno, - int entry); #define XFS_DA_MAKE_BNOENTRY(mp,bno,entry) \ - xfs_da_make_bnoentry(mp,bno,entry) -#else -#define XFS_DA_MAKE_BNOENTRY(mp,bno,entry) \ (((bno) << (mp)->m_dircook_elog) | (entry)) -#endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_MAKE_COOKIE) -xfs_off_t xfs_da_make_cookie(struct xfs_mount *mp, xfs_dablk_t bno, int entry, - xfs_dahash_t hash); #define XFS_DA_MAKE_COOKIE(mp,bno,entry,hash) \ - xfs_da_make_cookie(mp,bno,entry,hash) -#else -#define XFS_DA_MAKE_COOKIE(mp,bno,entry,hash) \ (((xfs_off_t)XFS_DA_MAKE_BNOENTRY(mp, bno, entry) << 32) | (hash)) -#endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_COOKIE_HASH) -xfs_dahash_t xfs_da_cookie_hash(struct xfs_mount *mp, xfs_off_t cookie); -#define XFS_DA_COOKIE_HASH(mp,cookie) xfs_da_cookie_hash(mp,cookie) -#else -#define XFS_DA_COOKIE_HASH(mp,cookie) ((xfs_dahash_t)(cookie)) -#endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_COOKIE_BNO) -xfs_dablk_t xfs_da_cookie_bno(struct xfs_mount *mp, xfs_off_t cookie); -#define XFS_DA_COOKIE_BNO(mp,cookie) xfs_da_cookie_bno(mp,cookie) -#else -#define XFS_DA_COOKIE_BNO(mp,cookie) \ - (((xfs_off_t)(cookie) >> 31) == -1LL ? \ +#define XFS_DA_COOKIE_HASH(mp,cookie) ((xfs_dahash_t)cookie) +#define XFS_DA_COOKIE_BNO(mp,cookie) \ + ((((xfs_off_t)(cookie) >> 31) == -1LL ? \ (xfs_dablk_t)0 : \ - (xfs_dablk_t)((xfs_off_t)(cookie) >> ((mp)->m_dircook_elog + 32))) -#endif -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_COOKIE_ENTRY) -int xfs_da_cookie_entry(struct xfs_mount *mp, xfs_off_t cookie); -#define XFS_DA_COOKIE_ENTRY(mp,cookie) xfs_da_cookie_entry(mp,cookie) -#else -#define XFS_DA_COOKIE_ENTRY(mp,cookie) \ - (((xfs_off_t)(cookie) >> 31) == -1LL ? \ + (xfs_dablk_t)((xfs_off_t)(cookie) >> \ + ((mp)->m_dircook_elog + 32)))) +#define XFS_DA_COOKIE_ENTRY(mp,cookie) \ + ((((xfs_off_t)(cookie) >> 31) == -1LL ? \ (xfs_dablk_t)0 : \ (xfs_dablk_t)(((xfs_off_t)(cookie) >> 32) & \ - ((1 << (mp)->m_dircook_elog) - 1))) -#endif + ((1 << (mp)->m_dircook_elog) - 1)))) /*======================================================================== @@ -168,7 +106,7 @@ int xfs_da_cookie_entry(struct xfs_mount *mp, xfs_off_t cookie); * Structure to ease passing around component names. */ typedef struct xfs_da_args { - uchar_t *name; /* string (maybe not NULL terminated) */ + const uchar_t *name; /* string (maybe not NULL terminated) */ int namelen; /* length of string (maybe no NULL) */ uchar_t *value; /* set of bytes (maybe contain NULLs) */ int valuelen; /* length of value */ @@ -314,7 +252,7 @@ xfs_daddr_t xfs_da_reada_buf(struct xfs_trans *trans, struct xfs_inode *dp, int xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno, xfs_dabuf_t *dead_buf); -uint xfs_da_hashname(uchar_t *name_string, int name_length); +uint xfs_da_hashname(const uchar_t *name_string, int name_length); uint xfs_da_log2_roundup(uint i); xfs_da_state_t *xfs_da_state_alloc(void); void xfs_da_state_free(xfs_da_state_t *state); |