/*
- * 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"
#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"
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:
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;
+ xfs_filblks_t qblocks, resblks;
int committed;
- int numrtextents;
- uint resblks;
+ int resrtextents;
/*
* Make sure that the dquots are there. This doesn't hold
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;
xfs_fileoff_t map_last_fsb;
map_last_fsb = ret_imap->br_blockcount + ret_imap->br_startoff;
-
if (map_last_fsb < last_fsb) {
last_fsb = map_last_fsb;
count_fsb = last_fsb - offset_fsb;
}
/*
- * determine if reserving space on
- * the data or realtime partition.
+ * Determine if reserving space on the data or realtime partition.
*/
if ((rt = XFS_IS_REALTIME_INODE(ip))) {
- int sbrtextsize, iprtextsize;
-
- sbrtextsize = mp->m_sb.sb_rextsize;
- iprtextsize =
- ip->i_d.di_extsize ? ip->i_d.di_extsize : sbrtextsize;
- numrtextents = (count_fsb + iprtextsize - 1);
- do_div(numrtextents, sbrtextsize);
- datablocks = 0;
+ xfs_extlen_t extsz;
+
+ if (!(extsz = ip->i_d.di_extsize))
+ extsz = 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;
} else {
- datablocks = count_fsb;
- numrtextents = 0;
+ resrtextents = 0;
+ resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, count_fsb);
+ quota_flag = XFS_QMOPT_RES_REGBLKS;
}
/*
- * allocate and setup the transaction
+ * Allocate and setup the transaction
*/
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);
/*
- * check for running out of space
+ * Check for running out of space, note: need lock to return
*/
if (error)
- /*
- * Free the transaction structure.
- */
xfs_trans_cancel(tp, 0);
-
xfs_ilock(ip, XFS_ILOCK_EXCL);
-
if (error)
- goto error_out; /* Don't return in above if .. trans ..,
- need lock to return */
+ goto error_out;
- if (XFS_TRANS_RESERVE_BLKQUOTA(mp, tp, ip, resblks)) {
+ if (XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag)) {
error = (EDQUOT);
goto error1;
}
- nimaps = 1;
bmapi_flag = XFS_BMAPI_WRITE;
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
bmapi_flag |= XFS_BMAPI_PREALLOC;
/*
- * issue the bmapi() call to allocate the blocks
+ * Issue the bmapi() call to allocate the blocks
*/
XFS_BMAP_INIT(&free_list, &firstfsb);
- imapp = &imap[0];
+ nimaps = 1;
error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
- bmapi_flag, &firstfsb, 0, imapp, &nimaps, &free_list);
- if (error) {
+ bmapi_flag, &firstfsb, 0, &imap, &nimaps, &free_list);
+ if (error)
goto error0;
- }
/*
- * complete the transaction
+ * Complete the transaction
*/
-
error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed);
- if (error) {
+ if (error)
goto error0;
- }
-
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
- if (error) {
+ if (error)
goto error_out;
- }
- /* copy any maps to caller's array and return any error. */
+ /*
+ * Copy any maps to caller's array and return any error.
+ */
if (nimaps == 0) {
error = (ENOSPC);
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 "
}
return 0;
- error0: /* Cancel bmap, unlock inode, and cancel trans */
+error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
xfs_bmap_cancel(&free_list);
+ XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag);
- error1: /* Just cancel transaction */
+error1: /* Just cancel transaction */
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
*nmaps = 0; /* nothing set-up here */
projects / linux-2.6-omap-h63xx.git / blobdiff