/*
- * 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
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir.h"
#include "xfs_dir2.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir_sf.h"
#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_quota.h"
#include "xfs_trans_priv.h"
#include "xfs_trans_space.h"
+#include "xfs_inode_item.h"
STATIC void xfs_trans_apply_sb_deltas(xfs_trans_t *);
STATIC void xfs_trans_chunk_committed(xfs_log_item_chunk_t *, xfs_lsn_t, int);
STATIC void xfs_trans_free(xfs_trans_t *);
-kmem_zone_t *xfs_trans_zone;
+kmem_zone_t *xfs_trans_zone;
+
+
+/*
+ * Reservation functions here avoid a huge stack in xfs_trans_init
+ * due to register overflow from temporaries in the calculations.
+ */
+
+STATIC uint
+xfs_calc_write_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_WRITE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_itruncate_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_ITRUNCATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_rename_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_RENAME_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_link_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_LINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_remove_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_REMOVE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_symlink_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_SYMLINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_create_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_CREATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_mkdir_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_MKDIR_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_ifree_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_IFREE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_ichange_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_ICHANGE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_growdata_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_GROWDATA_LOG_RES(mp);
+}
+
+STATIC uint
+xfs_calc_growrtalloc_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_GROWRTALLOC_LOG_RES(mp);
+}
+STATIC uint
+xfs_calc_growrtzero_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_GROWRTZERO_LOG_RES(mp);
+}
+
+STATIC uint
+xfs_calc_growrtfree_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_GROWRTFREE_LOG_RES(mp);
+}
+
+STATIC uint
+xfs_calc_swrite_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_SWRITE_LOG_RES(mp);
+}
+
+STATIC uint
+xfs_calc_writeid_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_WRITEID_LOG_RES(mp);
+}
+
+STATIC uint
+xfs_calc_addafork_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_ADDAFORK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_attrinval_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_ATTRINVAL_LOG_RES(mp);
+}
+
+STATIC uint
+xfs_calc_attrset_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_ATTRSET_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_attrrm_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_ATTRRM_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp);
+}
+
+STATIC uint
+xfs_calc_clear_agi_bucket_reservation(xfs_mount_t *mp)
+{
+ return XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp);
+}
/*
* Initialize the precomputed transaction reservation values
xfs_trans_reservations_t *resp;
resp = &(mp->m_reservations);
- resp->tr_write =
- (uint)(XFS_CALC_WRITE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_itruncate =
- (uint)(XFS_CALC_ITRUNCATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_rename =
- (uint)(XFS_CALC_RENAME_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_link = (uint)XFS_CALC_LINK_LOG_RES(mp);
- resp->tr_remove =
- (uint)(XFS_CALC_REMOVE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_symlink =
- (uint)(XFS_CALC_SYMLINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_create =
- (uint)(XFS_CALC_CREATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_mkdir =
- (uint)(XFS_CALC_MKDIR_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_ifree =
- (uint)(XFS_CALC_IFREE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_ichange =
- (uint)(XFS_CALC_ICHANGE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_growdata = (uint)XFS_CALC_GROWDATA_LOG_RES(mp);
- resp->tr_swrite = (uint)XFS_CALC_SWRITE_LOG_RES(mp);
- resp->tr_writeid = (uint)XFS_CALC_WRITEID_LOG_RES(mp);
- resp->tr_addafork =
- (uint)(XFS_CALC_ADDAFORK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_attrinval = (uint)XFS_CALC_ATTRINVAL_LOG_RES(mp);
- resp->tr_attrset =
- (uint)(XFS_CALC_ATTRSET_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_attrrm =
- (uint)(XFS_CALC_ATTRRM_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
- resp->tr_clearagi = (uint)XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp);
- resp->tr_growrtalloc = (uint)XFS_CALC_GROWRTALLOC_LOG_RES(mp);
- resp->tr_growrtzero = (uint)XFS_CALC_GROWRTZERO_LOG_RES(mp);
- resp->tr_growrtfree = (uint)XFS_CALC_GROWRTFREE_LOG_RES(mp);
+ resp->tr_write = xfs_calc_write_reservation(mp);
+ resp->tr_itruncate = xfs_calc_itruncate_reservation(mp);
+ resp->tr_rename = xfs_calc_rename_reservation(mp);
+ resp->tr_link = xfs_calc_link_reservation(mp);
+ resp->tr_remove = xfs_calc_remove_reservation(mp);
+ resp->tr_symlink = xfs_calc_symlink_reservation(mp);
+ resp->tr_create = xfs_calc_create_reservation(mp);
+ resp->tr_mkdir = xfs_calc_mkdir_reservation(mp);
+ resp->tr_ifree = xfs_calc_ifree_reservation(mp);
+ resp->tr_ichange = xfs_calc_ichange_reservation(mp);
+ resp->tr_growdata = xfs_calc_growdata_reservation(mp);
+ resp->tr_swrite = xfs_calc_swrite_reservation(mp);
+ resp->tr_writeid = xfs_calc_writeid_reservation(mp);
+ resp->tr_addafork = xfs_calc_addafork_reservation(mp);
+ resp->tr_attrinval = xfs_calc_attrinval_reservation(mp);
+ resp->tr_attrset = xfs_calc_attrset_reservation(mp);
+ resp->tr_attrrm = xfs_calc_attrrm_reservation(mp);
+ resp->tr_clearagi = xfs_calc_clear_agi_bucket_reservation(mp);
+ resp->tr_growrtalloc = xfs_calc_growrtalloc_reservation(mp);
+ resp->tr_growrtzero = xfs_calc_growrtzero_reservation(mp);
+ resp->tr_growrtfree = xfs_calc_growrtfree_reservation(mp);
}
/*
xfs_mount_t *mp,
uint type)
{
- fs_check_frozen(XFS_MTOVFS(mp), SB_FREEZE_TRANS);
- atomic_inc(&mp->m_active_trans);
-
- return (_xfs_trans_alloc(mp, type));
-
+ xfs_wait_for_freeze(mp, SB_FREEZE_TRANS);
+ return _xfs_trans_alloc(mp, type);
}
xfs_trans_t *
{
xfs_trans_t *tp;
- ASSERT(xfs_trans_zone != NULL);
- tp = kmem_zone_zalloc(xfs_trans_zone, KM_SLEEP);
+ atomic_inc(&mp->m_active_trans);
- /*
- * Initialize the transaction structure.
- */
+ tp = kmem_zone_zalloc(xfs_trans_zone, KM_SLEEP);
tp->t_magic = XFS_TRANS_MAGIC;
tp->t_type = type;
tp->t_mountp = mp;
tp->t_items_free = XFS_LIC_NUM_SLOTS;
tp->t_busy_free = XFS_LBC_NUM_SLOTS;
- XFS_LIC_INIT(&(tp->t_items));
+ xfs_lic_init(&(tp->t_items));
XFS_LBC_INIT(&(tp->t_busy));
-
- return (tp);
+ return tp;
}
/*
ntp->t_mountp = tp->t_mountp;
ntp->t_items_free = XFS_LIC_NUM_SLOTS;
ntp->t_busy_free = XFS_LBC_NUM_SLOTS;
- XFS_LIC_INIT(&(ntp->t_items));
+ xfs_lic_init(&(ntp->t_items));
XFS_LBC_INIT(&(ntp->t_busy));
ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
-
-#if defined(XLOG_NOLOG) || defined(DEBUG)
- ASSERT(!xlog_debug || tp->t_ticket != NULL);
-#else
ASSERT(tp->t_ticket != NULL);
-#endif
+
ntp->t_flags = XFS_TRANS_PERM_LOG_RES | (tp->t_flags & XFS_TRANS_RESERVE);
- ntp->t_ticket = tp->t_ticket;
+ ntp->t_ticket = xfs_log_ticket_get(tp->t_ticket);
ntp->t_blk_res = tp->t_blk_res - tp->t_blk_res_used;
tp->t_blk_res = tp->t_blk_res_used;
ntp->t_rtx_res = tp->t_rtx_res - tp->t_rtx_res_used;
tp->t_rtx_res = tp->t_rtx_res_used;
- PFLAGS_DUP(&tp->t_pflags, &ntp->t_pflags);
+ ntp->t_pflags = tp->t_pflags;
XFS_TRANS_DUP_DQINFO(tp->t_mountp, tp, ntp);
uint logcount)
{
int log_flags;
- int error;
- int rsvd;
-
- error = 0;
- rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
+ int error = 0;
+ int rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
/* Mark this thread as being in a transaction */
- PFLAGS_SET_FSTRANS(&tp->t_pflags);
+ current_set_flags_nested(&tp->t_pflags, PF_FSTRANS);
/*
* Attempt to reserve the needed disk blocks by decrementing
*/
if (blocks > 0) {
error = xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS,
- -blocks, rsvd);
+ -((int64_t)blocks), rsvd);
if (error != 0) {
- PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
return (XFS_ERROR(ENOSPC));
}
tp->t_blk_res += blocks;
*/
if (rtextents > 0) {
error = xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FREXTENTS,
- -rtextents, rsvd);
+ -((int64_t)rtextents), rsvd);
if (error) {
error = XFS_ERROR(ENOSPC);
goto undo_log;
undo_blocks:
if (blocks > 0) {
(void) xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS,
- blocks, rsvd);
+ (int64_t)blocks, rsvd);
tp->t_blk_res = 0;
}
- PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
- return (error);
+ return error;
}
*
* Mark the transaction structure to indicate that the superblock
* needs to be updated before committing.
+ *
+ * Because we may not be keeping track of allocated/free inodes and
+ * used filesystem blocks in the superblock, we do not mark the
+ * superblock dirty in this transaction if we modify these fields.
+ * We still need to update the transaction deltas so that they get
+ * applied to the incore superblock, but we don't want them to
+ * cause the superblock to get locked and logged if these are the
+ * only fields in the superblock that the transaction modifies.
*/
void
xfs_trans_mod_sb(
xfs_trans_t *tp,
uint field,
- long delta)
+ int64_t delta)
{
+ uint32_t flags = (XFS_TRANS_DIRTY|XFS_TRANS_SB_DIRTY);
+ xfs_mount_t *mp = tp->t_mountp;
switch (field) {
case XFS_TRANS_SB_ICOUNT:
tp->t_icount_delta += delta;
+ if (xfs_sb_version_haslazysbcount(&mp->m_sb))
+ flags &= ~XFS_TRANS_SB_DIRTY;
break;
case XFS_TRANS_SB_IFREE:
tp->t_ifree_delta += delta;
+ if (xfs_sb_version_haslazysbcount(&mp->m_sb))
+ flags &= ~XFS_TRANS_SB_DIRTY;
break;
case XFS_TRANS_SB_FDBLOCKS:
/*
ASSERT(tp->t_blk_res_used <= tp->t_blk_res);
}
tp->t_fdblocks_delta += delta;
+ if (xfs_sb_version_haslazysbcount(&mp->m_sb))
+ flags &= ~XFS_TRANS_SB_DIRTY;
break;
case XFS_TRANS_SB_RES_FDBLOCKS:
/*
*/
ASSERT(delta < 0);
tp->t_res_fdblocks_delta += delta;
+ if (xfs_sb_version_haslazysbcount(&mp->m_sb))
+ flags &= ~XFS_TRANS_SB_DIRTY;
break;
case XFS_TRANS_SB_FREXTENTS:
/*
case XFS_TRANS_SB_RES_FREXTENTS:
/*
* The allocation has already been applied to the
- * in-core superblocks's counter. This should only
+ * in-core superblock's counter. This should only
* be applied to the on-disk superblock.
*/
ASSERT(delta < 0);
return;
}
- tp->t_flags |= (XFS_TRANS_SB_DIRTY | XFS_TRANS_DIRTY);
+ tp->t_flags |= flags;
}
/*
xfs_trans_apply_sb_deltas(
xfs_trans_t *tp)
{
- xfs_sb_t *sbp;
+ xfs_dsb_t *sbp;
xfs_buf_t *bp;
int whole = 0;
(tp->t_ag_freeblks_delta + tp->t_ag_flist_delta +
tp->t_ag_btree_delta));
- if (tp->t_icount_delta != 0) {
- INT_MOD(sbp->sb_icount, ARCH_CONVERT, tp->t_icount_delta);
- }
- if (tp->t_ifree_delta != 0) {
- INT_MOD(sbp->sb_ifree, ARCH_CONVERT, tp->t_ifree_delta);
+ /*
+ * Only update the superblock counters if we are logging them
+ */
+ if (!xfs_sb_version_haslazysbcount(&(tp->t_mountp->m_sb))) {
+ if (tp->t_icount_delta)
+ be64_add_cpu(&sbp->sb_icount, tp->t_icount_delta);
+ if (tp->t_ifree_delta)
+ be64_add_cpu(&sbp->sb_ifree, tp->t_ifree_delta);
+ if (tp->t_fdblocks_delta)
+ be64_add_cpu(&sbp->sb_fdblocks, tp->t_fdblocks_delta);
+ if (tp->t_res_fdblocks_delta)
+ be64_add_cpu(&sbp->sb_fdblocks, tp->t_res_fdblocks_delta);
}
- if (tp->t_fdblocks_delta != 0) {
- INT_MOD(sbp->sb_fdblocks, ARCH_CONVERT, tp->t_fdblocks_delta);
- }
- if (tp->t_res_fdblocks_delta != 0) {
- INT_MOD(sbp->sb_fdblocks, ARCH_CONVERT, tp->t_res_fdblocks_delta);
- }
+ if (tp->t_frextents_delta)
+ be64_add_cpu(&sbp->sb_frextents, tp->t_frextents_delta);
+ if (tp->t_res_frextents_delta)
+ be64_add_cpu(&sbp->sb_frextents, tp->t_res_frextents_delta);
- if (tp->t_frextents_delta != 0) {
- INT_MOD(sbp->sb_frextents, ARCH_CONVERT, tp->t_frextents_delta);
- }
- if (tp->t_res_frextents_delta != 0) {
- INT_MOD(sbp->sb_frextents, ARCH_CONVERT, tp->t_res_frextents_delta);
- }
- if (tp->t_dblocks_delta != 0) {
- INT_MOD(sbp->sb_dblocks, ARCH_CONVERT, tp->t_dblocks_delta);
+ if (tp->t_dblocks_delta) {
+ be64_add_cpu(&sbp->sb_dblocks, tp->t_dblocks_delta);
whole = 1;
}
- if (tp->t_agcount_delta != 0) {
- INT_MOD(sbp->sb_agcount, ARCH_CONVERT, tp->t_agcount_delta);
+ if (tp->t_agcount_delta) {
+ be32_add_cpu(&sbp->sb_agcount, tp->t_agcount_delta);
whole = 1;
}
- if (tp->t_imaxpct_delta != 0) {
- INT_MOD(sbp->sb_imax_pct, ARCH_CONVERT, tp->t_imaxpct_delta);
+ if (tp->t_imaxpct_delta) {
+ sbp->sb_imax_pct += tp->t_imaxpct_delta;
whole = 1;
}
- if (tp->t_rextsize_delta != 0) {
- INT_MOD(sbp->sb_rextsize, ARCH_CONVERT, tp->t_rextsize_delta);
+ if (tp->t_rextsize_delta) {
+ be32_add_cpu(&sbp->sb_rextsize, tp->t_rextsize_delta);
whole = 1;
}
- if (tp->t_rbmblocks_delta != 0) {
- INT_MOD(sbp->sb_rbmblocks, ARCH_CONVERT, tp->t_rbmblocks_delta);
+ if (tp->t_rbmblocks_delta) {
+ be32_add_cpu(&sbp->sb_rbmblocks, tp->t_rbmblocks_delta);
whole = 1;
}
- if (tp->t_rblocks_delta != 0) {
- INT_MOD(sbp->sb_rblocks, ARCH_CONVERT, tp->t_rblocks_delta);
+ if (tp->t_rblocks_delta) {
+ be64_add_cpu(&sbp->sb_rblocks, tp->t_rblocks_delta);
whole = 1;
}
- if (tp->t_rextents_delta != 0) {
- INT_MOD(sbp->sb_rextents, ARCH_CONVERT, tp->t_rextents_delta);
+ if (tp->t_rextents_delta) {
+ be64_add_cpu(&sbp->sb_rextents, tp->t_rextents_delta);
whole = 1;
}
- if (tp->t_rextslog_delta != 0) {
- INT_MOD(sbp->sb_rextslog, ARCH_CONVERT, tp->t_rextslog_delta);
+ if (tp->t_rextslog_delta) {
+ sbp->sb_rextslog += tp->t_rextslog_delta;
whole = 1;
}
if (whole)
/*
- * Log the whole thing, the fields are discontiguous.
+ * Log the whole thing, the fields are noncontiguous.
*/
- xfs_trans_log_buf(tp, bp, 0, sizeof(xfs_sb_t) - 1);
+ xfs_trans_log_buf(tp, bp, 0, sizeof(xfs_dsb_t) - 1);
else
/*
* Since all the modifiable fields are contiguous, we
* can get away with this.
*/
- xfs_trans_log_buf(tp, bp, offsetof(xfs_sb_t, sb_icount),
- offsetof(xfs_sb_t, sb_frextents) +
+ xfs_trans_log_buf(tp, bp, offsetof(xfs_dsb_t, sb_icount),
+ offsetof(xfs_dsb_t, sb_frextents) +
sizeof(sbp->sb_frextents) - 1);
- XFS_MTOVFS(tp->t_mountp)->vfs_super->s_dirt = 1;
+ tp->t_mountp->m_super->s_dirt = 1;
}
/*
- * xfs_trans_unreserve_and_mod_sb() is called to release unused
- * reservations and apply superblock counter changes to the in-core
- * superblock.
+ * xfs_trans_unreserve_and_mod_sb() is called to release unused reservations
+ * and apply superblock counter changes to the in-core superblock. The
+ * t_res_fdblocks_delta and t_res_frextents_delta fields are explicitly NOT
+ * applied to the in-core superblock. The idea is that that has already been
+ * done.
*
* This is done efficiently with a single call to xfs_mod_incore_sb_batch().
+ * However, we have to ensure that we only modify each superblock field only
+ * once because the application of the delta values may not be atomic. That can
+ * lead to ENOSPC races occurring if we have two separate modifcations of the
+ * free space counter to put back the entire reservation and then take away
+ * what we used.
+ *
+ * If we are not logging superblock counters, then the inode allocated/free and
+ * used block counts are not updated in the on disk superblock. In this case,
+ * XFS_TRANS_SB_DIRTY will not be set when the transaction is updated but we
+ * still need to update the incore superblock with the changes.
*/
STATIC void
xfs_trans_unreserve_and_mod_sb(
{
xfs_mod_sb_t msb[14]; /* If you add cases, add entries */
xfs_mod_sb_t *msbp;
+ xfs_mount_t *mp = tp->t_mountp;
/* REFERENCED */
int error;
int rsvd;
+ int64_t blkdelta = 0;
+ int64_t rtxdelta = 0;
msbp = msb;
rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
- /*
- * Release any reserved blocks. Any that were allocated
- * will be taken back again by fdblocks_delta below.
- */
- if (tp->t_blk_res > 0) {
+ /* calculate free blocks delta */
+ if (tp->t_blk_res > 0)
+ blkdelta = tp->t_blk_res;
+
+ if ((tp->t_fdblocks_delta != 0) &&
+ (xfs_sb_version_haslazysbcount(&mp->m_sb) ||
+ (tp->t_flags & XFS_TRANS_SB_DIRTY)))
+ blkdelta += tp->t_fdblocks_delta;
+
+ if (blkdelta != 0) {
msbp->msb_field = XFS_SBS_FDBLOCKS;
- msbp->msb_delta = tp->t_blk_res;
+ msbp->msb_delta = blkdelta;
msbp++;
}
- /*
- * Release any reserved real time extents . Any that were
- * allocated will be taken back again by frextents_delta below.
- */
- if (tp->t_rtx_res > 0) {
+ /* calculate free realtime extents delta */
+ if (tp->t_rtx_res > 0)
+ rtxdelta = tp->t_rtx_res;
+
+ if ((tp->t_frextents_delta != 0) &&
+ (tp->t_flags & XFS_TRANS_SB_DIRTY))
+ rtxdelta += tp->t_frextents_delta;
+
+ if (rtxdelta != 0) {
msbp->msb_field = XFS_SBS_FREXTENTS;
- msbp->msb_delta = tp->t_rtx_res;
+ msbp->msb_delta = rtxdelta;
msbp++;
}
- /*
- * Apply any superblock modifications to the in-core version.
- * The t_res_fdblocks_delta and t_res_frextents_delta fields are
- * explicity NOT applied to the in-core superblock.
- * The idea is that that has already been done.
- */
- if (tp->t_flags & XFS_TRANS_SB_DIRTY) {
+ /* apply remaining deltas */
+
+ if (xfs_sb_version_haslazysbcount(&mp->m_sb) ||
+ (tp->t_flags & XFS_TRANS_SB_DIRTY)) {
if (tp->t_icount_delta != 0) {
msbp->msb_field = XFS_SBS_ICOUNT;
- msbp->msb_delta = (int)tp->t_icount_delta;
+ msbp->msb_delta = tp->t_icount_delta;
msbp++;
}
if (tp->t_ifree_delta != 0) {
msbp->msb_field = XFS_SBS_IFREE;
- msbp->msb_delta = (int)tp->t_ifree_delta;
- msbp++;
- }
- if (tp->t_fdblocks_delta != 0) {
- msbp->msb_field = XFS_SBS_FDBLOCKS;
- msbp->msb_delta = (int)tp->t_fdblocks_delta;
- msbp++;
- }
- if (tp->t_frextents_delta != 0) {
- msbp->msb_field = XFS_SBS_FREXTENTS;
- msbp->msb_delta = (int)tp->t_frextents_delta;
+ msbp->msb_delta = tp->t_ifree_delta;
msbp++;
}
+ }
+
+ if (tp->t_flags & XFS_TRANS_SB_DIRTY) {
if (tp->t_dblocks_delta != 0) {
msbp->msb_field = XFS_SBS_DBLOCKS;
- msbp->msb_delta = (int)tp->t_dblocks_delta;
+ msbp->msb_delta = tp->t_dblocks_delta;
msbp++;
}
if (tp->t_agcount_delta != 0) {
msbp->msb_field = XFS_SBS_AGCOUNT;
- msbp->msb_delta = (int)tp->t_agcount_delta;
+ msbp->msb_delta = tp->t_agcount_delta;
msbp++;
}
if (tp->t_imaxpct_delta != 0) {
msbp->msb_field = XFS_SBS_IMAX_PCT;
- msbp->msb_delta = (int)tp->t_imaxpct_delta;
+ msbp->msb_delta = tp->t_imaxpct_delta;
msbp++;
}
if (tp->t_rextsize_delta != 0) {
msbp->msb_field = XFS_SBS_REXTSIZE;
- msbp->msb_delta = (int)tp->t_rextsize_delta;
+ msbp->msb_delta = tp->t_rextsize_delta;
msbp++;
}
if (tp->t_rbmblocks_delta != 0) {
msbp->msb_field = XFS_SBS_RBMBLOCKS;
- msbp->msb_delta = (int)tp->t_rbmblocks_delta;
+ msbp->msb_delta = tp->t_rbmblocks_delta;
msbp++;
}
if (tp->t_rblocks_delta != 0) {
msbp->msb_field = XFS_SBS_RBLOCKS;
- msbp->msb_delta = (int)tp->t_rblocks_delta;
+ msbp->msb_delta = tp->t_rblocks_delta;
msbp++;
}
if (tp->t_rextents_delta != 0) {
msbp->msb_field = XFS_SBS_REXTENTS;
- msbp->msb_delta = (int)tp->t_rextents_delta;
+ msbp->msb_delta = tp->t_rextents_delta;
msbp++;
}
if (tp->t_rextslog_delta != 0) {
msbp->msb_field = XFS_SBS_REXTSLOG;
- msbp->msb_delta = (int)tp->t_rextslog_delta;
+ msbp->msb_delta = tp->t_rextslog_delta;
msbp++;
}
}
_xfs_trans_commit(
xfs_trans_t *tp,
uint flags,
- xfs_lsn_t *commit_lsn_p,
int *log_flushed)
{
xfs_log_iovec_t *log_vector;
int sync;
#define XFS_TRANS_LOGVEC_COUNT 16
xfs_log_iovec_t log_vector_fast[XFS_TRANS_LOGVEC_COUNT];
-#if defined(XLOG_NOLOG) || defined(DEBUG)
- static xfs_lsn_t trans_lsn = 1;
-#endif
void *commit_iclog;
int shutdown;
if (commit_lsn == -1 && !shutdown)
shutdown = XFS_ERROR(EIO);
}
- PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
xfs_trans_free_items(tp, shutdown? XFS_TRANS_ABORT : 0);
xfs_trans_free_busy(tp);
xfs_trans_free(tp);
XFS_STATS_INC(xs_trans_empty);
- if (commit_lsn_p)
- *commit_lsn_p = commit_lsn;
return (shutdown);
}
-#if defined(XLOG_NOLOG) || defined(DEBUG)
- ASSERT(!xlog_debug || tp->t_ticket != NULL);
-#else
ASSERT(tp->t_ticket != NULL);
-#endif
/*
* If we need to update the superblock, then do it now.
* by using a vector from the stack when it fits.
*/
nvec = xfs_trans_count_vecs(tp);
-
if (nvec == 0) {
- xfs_force_shutdown(mp, XFS_LOG_IO_ERROR);
+ xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR);
goto shut_us_down;
- }
-
-
- if (nvec <= XFS_TRANS_LOGVEC_COUNT) {
+ } else if (nvec <= XFS_TRANS_LOGVEC_COUNT) {
log_vector = log_vector_fast;
} else {
log_vector = (xfs_log_iovec_t *)kmem_alloc(nvec *
*/
xfs_trans_fill_vecs(tp, log_vector);
- /*
- * Ignore errors here. xfs_log_done would do the right thing.
- * We need to put the ticket, etc. away.
- */
- error = xfs_log_write(mp, log_vector, nvec, tp->t_ticket,
- &(tp->t_lsn));
+ error = xfs_log_write(mp, log_vector, nvec, tp->t_ticket, &(tp->t_lsn));
-#if defined(XLOG_NOLOG) || defined(DEBUG)
- if (xlog_debug) {
- commit_lsn = xfs_log_done(mp, tp->t_ticket,
- &commit_iclog, log_flags);
- } else {
- commit_lsn = 0;
- tp->t_lsn = trans_lsn++;
- }
-#else
/*
- * This is the regular case. At this point (after the call finishes),
- * the transaction is committed incore and could go out to disk at
- * any time. However, all the items associated with the transaction
- * are still locked and pinned in memory.
+ * The transaction is committed incore here, and can go out to disk
+ * at any time after this call. However, all the items associated
+ * with the transaction are still locked and pinned in memory.
*/
commit_lsn = xfs_log_done(mp, tp->t_ticket, &commit_iclog, log_flags);
-#endif
tp->t_commit_lsn = commit_lsn;
if (nvec > XFS_TRANS_LOGVEC_COUNT) {
- kmem_free(log_vector, nvec * sizeof(xfs_log_iovec_t));
+ kmem_free(log_vector);
}
- if (commit_lsn_p)
- *commit_lsn_p = commit_lsn;
-
/*
* If we got a log write error. Unpin the logitems that we
* had pinned, clean up, free trans structure, and return error.
*/
if (error || commit_lsn == -1) {
- PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
xfs_trans_uncommit(tp, flags|XFS_TRANS_ABORT);
return XFS_ERROR(EIO);
}
/*
* Mark this thread as no longer being in a transaction
*/
- PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
/*
* Once all the items of the transaction have been copied
xfs_log_item_t *lip;
int i;
#endif
+ xfs_mount_t *mp = tp->t_mountp;
/*
* See if the caller is being too lazy to figure out if
* filesystem. This happens in paths where we detect
* corruption and decide to give up.
*/
- if ((tp->t_flags & XFS_TRANS_DIRTY) &&
- !XFS_FORCED_SHUTDOWN(tp->t_mountp))
- xfs_force_shutdown(tp->t_mountp, XFS_CORRUPT_INCORE);
+ if ((tp->t_flags & XFS_TRANS_DIRTY) && !XFS_FORCED_SHUTDOWN(mp)) {
+ XFS_ERROR_REPORT("xfs_trans_cancel", XFS_ERRLEVEL_LOW, mp);
+ xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
+ }
#ifdef DEBUG
if (!(flags & XFS_TRANS_ABORT)) {
licp = &(tp->t_items);
while (licp != NULL) {
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
lip = lidp->lid_item;
- if (!XFS_FORCED_SHUTDOWN(tp->t_mountp))
+ if (!XFS_FORCED_SHUTDOWN(mp))
ASSERT(!(lip->li_type == XFS_LI_EFD));
}
licp = licp->lic_next;
}
#endif
xfs_trans_unreserve_and_mod_sb(tp);
- XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(tp->t_mountp, tp);
+ XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(mp, tp);
if (tp->t_ticket) {
if (flags & XFS_TRANS_RELEASE_LOG_RES) {
} else {
log_flags = 0;
}
- xfs_log_done(tp->t_mountp, tp->t_ticket, NULL, log_flags);
+ xfs_log_done(mp, tp->t_ticket, NULL, log_flags);
}
/* mark this thread as no longer being in a transaction */
- PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
xfs_trans_free_items(tp, flags);
xfs_trans_free_busy(tp);
kmem_zone_free(xfs_trans_zone, tp);
}
+/*
+ * Roll from one trans in the sequence of PERMANENT transactions to
+ * the next: permanent transactions are only flushed out when
+ * committed with XFS_TRANS_RELEASE_LOG_RES, but we still want as soon
+ * as possible to let chunks of it go to the log. So we commit the
+ * chunk we've been working on and get a new transaction to continue.
+ */
+int
+xfs_trans_roll(
+ struct xfs_trans **tpp,
+ struct xfs_inode *dp)
+{
+ struct xfs_trans *trans;
+ unsigned int logres, count;
+ int error;
+
+ /*
+ * Ensure that the inode is always logged.
+ */
+ trans = *tpp;
+ xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
+
+ /*
+ * Copy the critical parameters from one trans to the next.
+ */
+ logres = trans->t_log_res;
+ count = trans->t_log_count;
+ *tpp = xfs_trans_dup(trans);
+
+ /*
+ * Commit the current transaction.
+ * If this commit failed, then it'd just unlock those items that
+ * are not marked ihold. That also means that a filesystem shutdown
+ * is in progress. The caller takes the responsibility to cancel
+ * the duplicate transaction that gets returned.
+ */
+ error = xfs_trans_commit(trans, 0);
+ if (error)
+ return (error);
+
+ trans = *tpp;
+
+ /*
+ * transaction commit worked ok so we can drop the extra ticket
+ * reference that we gained in xfs_trans_dup()
+ */
+ xfs_log_ticket_put(trans->t_ticket);
+
+
+ /*
+ * Reserve space in the log for th next transaction.
+ * This also pushes items in the "AIL", the list of logged items,
+ * out to disk if they are taking up space at the tail of the log
+ * that we want to use. This requires that either nothing be locked
+ * across this call, or that anything that is locked be logged in
+ * the prior and the next transactions.
+ */
+ error = xfs_trans_reserve(trans, 0, logres, 0,
+ XFS_TRANS_PERM_LOG_RES, count);
+ /*
+ * Ensure that the inode is in the new transaction and locked.
+ */
+ if (error)
+ return error;
+
+ xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
+ xfs_trans_ihold(trans, dp);
+ return 0;
+}
/*
* THIS SHOULD BE REWRITTEN TO USE xfs_trans_next_item().
* Special case the chunk embedded in the transaction.
*/
licp = &(tp->t_items);
- if (!(XFS_LIC_ARE_ALL_FREE(licp))) {
+ if (!(xfs_lic_are_all_free(licp))) {
xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
}
*/
licp = licp->lic_next;
while (licp != NULL) {
- ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+ ASSERT(!xfs_lic_are_all_free(licp));
xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
next_licp = licp->lic_next;
- kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+ kmem_free(licp);
licp = next_licp;
}
xfs_log_item_desc_t *lidp;
xfs_log_item_t *lip;
xfs_lsn_t item_lsn;
- struct xfs_mount *mp;
int i;
- SPLDECL(s);
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ struct xfs_ail *ailp;
+
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
* This would cause the earlier transaction to fail
* the test below.
*/
- mp = lip->li_mountp;
- AIL_LOCK(mp,s);
+ ailp = lip->li_ailp;
+ spin_lock(&ailp->xa_lock);
if (XFS_LSN_CMP(item_lsn, lip->li_lsn) > 0) {
/*
* This will set the item's lsn to item_lsn
* and update the position of the item in
* the AIL.
*
- * xfs_trans_update_ail() drops the AIL lock.
+ * xfs_trans_ail_update() drops the AIL lock.
*/
- xfs_trans_update_ail(mp, lip, item_lsn, s);
+ xfs_trans_ail_update(ailp, lip, item_lsn);
} else {
- AIL_UNLOCK(mp, s);
+ spin_unlock(&ailp->xa_lock);
}
/*
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff