diff options
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 91 |
1 files changed, 31 insertions, 60 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 2edd6769e5d3..45a77a3a6c07 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1,40 +1,25 @@ /* - * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) 2000-2005 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 */ - #include "xfs.h" - #include "xfs_fs.h" -#include "xfs_inum.h" +#include "xfs_bit.h" #include "xfs_log.h" +#include "xfs_inum.h" #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" @@ -44,16 +29,16 @@ #include "xfs_dmapi.h" #include "xfs_quota.h" #include "xfs_mount.h" -#include "xfs_alloc_btree.h" #include "xfs_bmap_btree.h" +#include "xfs_alloc_btree.h" #include "xfs_ialloc_btree.h" -#include "xfs_btree.h" -#include "xfs_ialloc.h" -#include "xfs_attr_sf.h" #include "xfs_dir_sf.h" #include "xfs_dir2_sf.h" +#include "xfs_attr_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" +#include "xfs_ialloc.h" +#include "xfs_btree.h" #include "xfs_bmap.h" #include "xfs_bit.h" #include "xfs_rtalloc.h" @@ -226,13 +211,12 @@ xfs_iomap( xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count); lockmode = XFS_LCK_MAP_SHARED(mp, io); bmapi_flags = XFS_BMAPI_ENTIRE; - if (flags & BMAPI_IGNSTATE) - bmapi_flags |= XFS_BMAPI_IGSTATE; break; case BMAPI_WRITE: xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, io, offset, count); lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR; - bmapi_flags = 0; + if (flags & BMAPI_IGNSTATE) + bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE; XFS_ILOCK(mp, io, lockmode); break; case BMAPI_ALLOCATE: @@ -380,20 +364,18 @@ xfs_iomap_write_direct( xfs_fileoff_t offset_fsb; xfs_fileoff_t last_fsb; xfs_filblks_t count_fsb; - xfs_fsize_t isize; xfs_fsblock_t firstfsb; - int nimaps, maps; + int nimaps; int error; int bmapi_flag; int quota_flag; int rt; xfs_trans_t *tp; - xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS], *imapp; + xfs_bmbt_irec_t imap; xfs_bmap_free_t free_list; - int aeof; - xfs_filblks_t datablocks, qblocks, resblks; + xfs_filblks_t qblocks, resblks; int committed; - int numrtextents; + int resrtextents; /* * Make sure that the dquots are there. This doesn't hold @@ -403,15 +385,6 @@ xfs_iomap_write_direct( if (error) return XFS_ERROR(error); - maps = min(XFS_WRITE_IMAPS, *nmaps); - nimaps = maps; - - isize = ip->i_d.di_size; - aeof = (offset + count) > isize; - - if (io->io_new_size > isize) - isize = io->io_new_size; - offset_fsb = XFS_B_TO_FSBT(mp, offset); last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); count_fsb = last_fsb - offset_fsb; @@ -434,14 +407,14 @@ xfs_iomap_write_direct( if (!(extsz = ip->i_d.di_extsize)) extsz = mp->m_sb.sb_rextsize; - numrtextents = qblocks = (count_fsb + extsz - 1); - do_div(numrtextents, mp->m_sb.sb_rextsize); + resrtextents = qblocks = (count_fsb + extsz - 1); + do_div(resrtextents, mp->m_sb.sb_rextsize); + resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0); quota_flag = XFS_QMOPT_RES_RTBLKS; - datablocks = 0; } else { - datablocks = qblocks = count_fsb; + resrtextents = 0; + resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, count_fsb); quota_flag = XFS_QMOPT_RES_REGBLKS; - numrtextents = 0; } /* @@ -449,9 +422,8 @@ xfs_iomap_write_direct( */ xfs_iunlock(ip, XFS_ILOCK_EXCL); tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); - resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks); error = xfs_trans_reserve(tp, resblks, - XFS_WRITE_LOG_RES(mp), numrtextents, + XFS_WRITE_LOG_RES(mp), resrtextents, XFS_TRANS_PERM_LOG_RES, XFS_WRITE_LOG_COUNT); @@ -481,9 +453,8 @@ xfs_iomap_write_direct( */ XFS_BMAP_INIT(&free_list, &firstfsb); nimaps = 1; - imapp = &imap[0]; error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, - bmapi_flag, &firstfsb, 0, imapp, &nimaps, &free_list); + bmapi_flag, &firstfsb, 0, &imap, &nimaps, &free_list); if (error) goto error0; @@ -505,7 +476,7 @@ xfs_iomap_write_direct( goto error_out; } - *ret_imap = imap[0]; + *ret_imap = imap; *nmaps = 1; if ( !(io->io_flags & XFS_IOCORE_RT) && !ret_imap->br_startblock) { cmn_err(CE_PANIC,"Access to block zero: fs <%s> inode: %lld " |