/*
- * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2001,2005 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/
- */
-
-/*
- * This file contains the implementation of the xfs_efi_log_item
- * and xfs_efd_log_item items.
+ * 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_macros.h"
+#include "xfs_fs.h"
#include "xfs_types.h"
-#include "xfs_inum.h"
#include "xfs_log.h"
+#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_sb.h"
-#include "xfs_dir.h"
+#include "xfs_ag.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_trans_priv.h"
kmem_zone_t *xfs_efd_zone;
STATIC void xfs_efi_item_unlock(xfs_efi_log_item_t *);
-STATIC void xfs_efi_item_abort(xfs_efi_log_item_t *);
-STATIC void xfs_efd_item_abort(xfs_efd_log_item_t *);
+void
+xfs_efi_item_free(xfs_efi_log_item_t *efip)
+{
+ int nexts = efip->efi_format.efi_nextents;
+ if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+ kmem_free(efip);
+ } else {
+ kmem_zone_free(xfs_efi_zone, efip);
+ }
+}
/*
* This returns the number of iovecs needed to log the given efi item.
log_vector->i_addr = (xfs_caddr_t)&(efip->efi_format);
log_vector->i_len = size;
+ XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_EFI_FORMAT);
ASSERT(size >= sizeof(xfs_efi_log_format_t));
}
STATIC void
xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
{
- int nexts;
- int size;
- xfs_mount_t *mp;
- SPLDECL(s);
+ struct xfs_ail *ailp = efip->efi_item.li_ailp;
- mp = efip->efi_item.li_mountp;
- AIL_LOCK(mp, s);
+ spin_lock(&ailp->xa_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
- /*
- * xfs_trans_delete_ail() drops the AIL lock.
- */
- xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
-
- nexts = efip->efi_format.efi_nextents;
- if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efi_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efip, size);
- } else {
- kmem_zone_free(xfs_efi_zone, efip);
- }
+ /* xfs_trans_ail_delete() drops the AIL lock. */
+ xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
+ xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
- AIL_UNLOCK(mp, s);
+ spin_unlock(&ailp->xa_lock);
}
-
- return;
}
/*
STATIC void
xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
{
- int nexts;
- int size;
- xfs_mount_t *mp;
+ struct xfs_ail *ailp = efip->efi_item.li_ailp;
xfs_log_item_desc_t *lidp;
- SPLDECL(s);
- mp = efip->efi_item.li_mountp;
- AIL_LOCK(mp, s);
+ spin_lock(&ailp->xa_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
/*
* free the xaction descriptor pointing to this item
*/
lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) efip);
xfs_trans_free_item(tp, lidp);
- /*
- * pull the item off the AIL.
- * xfs_trans_delete_ail() drops the AIL lock.
- */
- xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
- /*
- * now free the item itself
- */
- nexts = efip->efi_format.efi_nextents;
- if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efi_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efip, size);
- } else {
- kmem_zone_free(xfs_efi_zone, efip);
- }
+
+ /* xfs_trans_ail_delete() drops the AIL lock. */
+ xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
+ xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
- AIL_UNLOCK(mp, s);
+ spin_unlock(&ailp->xa_lock);
}
-
- return;
}
/*
xfs_efi_item_unlock(xfs_efi_log_item_t *efip)
{
if (efip->efi_item.li_flags & XFS_LI_ABORTED)
- xfs_efi_item_abort(efip);
+ xfs_efi_item_free(efip);
return;
}
}
/*
- * This is called when the transaction logging the EFI is aborted.
- * Free up the EFI and return. No need to clean up the slot for
- * the item in the transaction. That was done by the unpin code
- * which is called prior to this routine in the abort/fs-shutdown path.
- */
-STATIC void
-xfs_efi_item_abort(xfs_efi_log_item_t *efip)
-{
- int nexts;
- int size;
-
- nexts = efip->efi_format.efi_nextents;
- if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efi_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efip, size);
- } else {
- kmem_zone_free(xfs_efi_zone, efip);
- }
- return;
-}
-
-/*
* There isn't much you can do to push on an efi item. It is simply
* stuck waiting for all of its corresponding efd items to be
* committed to disk.
/*
* This is the ops vector shared by all efi log items.
*/
-STATIC struct xfs_item_ops xfs_efi_item_ops = {
+static struct xfs_item_ops xfs_efi_item_ops = {
.iop_size = (uint(*)(xfs_log_item_t*))xfs_efi_item_size,
.iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
xfs_efi_item_format,
.iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
xfs_efi_item_committed,
.iop_push = (void(*)(xfs_log_item_t*))xfs_efi_item_push,
- .iop_abort = (void(*)(xfs_log_item_t*))xfs_efi_item_abort,
.iop_pushbuf = NULL,
.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
xfs_efi_item_committing
efip->efi_item.li_type = XFS_LI_EFI;
efip->efi_item.li_ops = &xfs_efi_item_ops;
efip->efi_item.li_mountp = mp;
+ efip->efi_item.li_ailp = mp->m_ail;
efip->efi_format.efi_nextents = nextents;
efip->efi_format.efi_id = (__psint_t)(void*)efip;
}
/*
+ * Copy an EFI format buffer from the given buf, and into the destination
+ * EFI format structure.
+ * The given buffer can be in 32 bit or 64 bit form (which has different padding),
+ * one of which will be the native format for this kernel.
+ * It will handle the conversion of formats if necessary.
+ */
+int
+xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
+{
+ xfs_efi_log_format_t *src_efi_fmt = (xfs_efi_log_format_t *)buf->i_addr;
+ uint i;
+ uint len = sizeof(xfs_efi_log_format_t) +
+ (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t);
+ uint len32 = sizeof(xfs_efi_log_format_32_t) +
+ (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_32_t);
+ uint len64 = sizeof(xfs_efi_log_format_64_t) +
+ (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_64_t);
+
+ if (buf->i_len == len) {
+ memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len);
+ return 0;
+ } else if (buf->i_len == len32) {
+ xfs_efi_log_format_32_t *src_efi_fmt_32 =
+ (xfs_efi_log_format_32_t *)buf->i_addr;
+
+ dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type;
+ dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size;
+ dst_efi_fmt->efi_nextents = src_efi_fmt_32->efi_nextents;
+ dst_efi_fmt->efi_id = src_efi_fmt_32->efi_id;
+ for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
+ dst_efi_fmt->efi_extents[i].ext_start =
+ src_efi_fmt_32->efi_extents[i].ext_start;
+ dst_efi_fmt->efi_extents[i].ext_len =
+ src_efi_fmt_32->efi_extents[i].ext_len;
+ }
+ return 0;
+ } else if (buf->i_len == len64) {
+ xfs_efi_log_format_64_t *src_efi_fmt_64 =
+ (xfs_efi_log_format_64_t *)buf->i_addr;
+
+ dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type;
+ dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size;
+ dst_efi_fmt->efi_nextents = src_efi_fmt_64->efi_nextents;
+ dst_efi_fmt->efi_id = src_efi_fmt_64->efi_id;
+ for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
+ dst_efi_fmt->efi_extents[i].ext_start =
+ src_efi_fmt_64->efi_extents[i].ext_start;
+ dst_efi_fmt->efi_extents[i].ext_len =
+ src_efi_fmt_64->efi_extents[i].ext_len;
+ }
+ return 0;
+ }
+ return EFSCORRUPTED;
+}
+
+/*
* This is called by the efd item code below to release references to
* the given efi item. Each efd calls this with the number of
* extents that it has logged, and when the sum of these reaches
xfs_efi_release(xfs_efi_log_item_t *efip,
uint nextents)
{
- xfs_mount_t *mp;
- int extents_left;
- uint size;
- int nexts;
- SPLDECL(s);
+ struct xfs_ail *ailp = efip->efi_item.li_ailp;
+ int extents_left;
- mp = efip->efi_item.li_mountp;
ASSERT(efip->efi_next_extent > 0);
ASSERT(efip->efi_flags & XFS_EFI_COMMITTED);
- AIL_LOCK(mp, s);
+ spin_lock(&ailp->xa_lock);
ASSERT(efip->efi_next_extent >= nextents);
efip->efi_next_extent -= nextents;
extents_left = efip->efi_next_extent;
if (extents_left == 0) {
- /*
- * xfs_trans_delete_ail() drops the AIL lock.
- */
- xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
+ /* xfs_trans_ail_delete() drops the AIL lock. */
+ xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
+ xfs_efi_item_free(efip);
} else {
- AIL_UNLOCK(mp, s);
- }
-
- if (extents_left == 0) {
- nexts = efip->efi_format.efi_nextents;
- if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efi_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efip, size);
- } else {
- kmem_zone_free(xfs_efi_zone, efip);
- }
+ spin_unlock(&ailp->xa_lock);
}
}
-/*
- * This is called when the transaction that should be committing the
- * EFD corresponding to the given EFI is aborted. The committed and
- * canceled flags are used to coordinate the freeing of the EFI and
- * the references by the transaction that committed it.
- */
STATIC void
-xfs_efi_cancel(
- xfs_efi_log_item_t *efip)
+xfs_efd_item_free(xfs_efd_log_item_t *efdp)
{
- int nexts;
- int size;
- xfs_mount_t *mp;
- SPLDECL(s);
-
- mp = efip->efi_item.li_mountp;
- AIL_LOCK(mp, s);
- if (efip->efi_flags & XFS_EFI_COMMITTED) {
- /*
- * xfs_trans_delete_ail() drops the AIL lock.
- */
- xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
-
- nexts = efip->efi_format.efi_nextents;
- if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efi_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efip, size);
- } else {
- kmem_zone_free(xfs_efi_zone, efip);
- }
+ int nexts = efdp->efd_format.efd_nextents;
+
+ if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
+ kmem_free(efdp);
} else {
- efip->efi_flags |= XFS_EFI_CANCELED;
- AIL_UNLOCK(mp, s);
+ kmem_zone_free(xfs_efd_zone, efdp);
}
-
- return;
}
-
-
-
-
/*
* This returns the number of iovecs needed to log the given efd item.
* We only need 1 iovec for an efd item. It just logs the efd_log_format
log_vector->i_addr = (xfs_caddr_t)&(efdp->efd_format);
log_vector->i_len = size;
+ XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_EFD_FORMAT);
ASSERT(size >= sizeof(xfs_efd_log_format_t));
}
xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
{
if (efdp->efd_item.li_flags & XFS_LI_ABORTED)
- xfs_efd_item_abort(efdp);
+ xfs_efd_item_free(efdp);
return;
}
STATIC xfs_lsn_t
xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
{
- uint size;
- int nexts;
-
/*
* If we got a log I/O error, it's always the case that the LR with the
* EFI got unpinned and freed before the EFD got aborted.
if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
xfs_efi_release(efdp->efd_efip, efdp->efd_format.efd_nextents);
- nexts = efdp->efd_format.efd_nextents;
- if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efd_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efdp, size);
- } else {
- kmem_zone_free(xfs_efd_zone, efdp);
- }
-
+ xfs_efd_item_free(efdp);
return (xfs_lsn_t)-1;
}
/*
- * The transaction of which this EFD is a part has been aborted.
- * Inform its companion EFI of this fact and then clean up after
- * ourselves. No need to clean up the slot for the item in the
- * transaction. That was done by the unpin code which is called
- * prior to this routine in the abort/fs-shutdown path.
- */
-STATIC void
-xfs_efd_item_abort(xfs_efd_log_item_t *efdp)
-{
- int nexts;
- int size;
-
- /*
- * If we got a log I/O error, it's always the case that the LR with the
- * EFI got unpinned and freed before the EFD got aborted. So don't
- * reference the EFI at all in that case.
- */
- if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
- xfs_efi_cancel(efdp->efd_efip);
-
- nexts = efdp->efd_format.efd_nextents;
- if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
- size = sizeof(xfs_efd_log_item_t);
- size += (nexts - 1) * sizeof(xfs_extent_t);
- kmem_free(efdp, size);
- } else {
- kmem_zone_free(xfs_efd_zone, efdp);
- }
- return;
-}
-
-/*
* There isn't much you can do to push on an efd item. It is simply
* stuck waiting for the log to be flushed to disk.
*/
/*
* This is the ops vector shared by all efd log items.
*/
-STATIC struct xfs_item_ops xfs_efd_item_ops = {
+static struct xfs_item_ops xfs_efd_item_ops = {
.iop_size = (uint(*)(xfs_log_item_t*))xfs_efd_item_size,
.iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
xfs_efd_item_format,
.iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
xfs_efd_item_committed,
.iop_push = (void(*)(xfs_log_item_t*))xfs_efd_item_push,
- .iop_abort = (void(*)(xfs_log_item_t*))xfs_efd_item_abort,
.iop_pushbuf = NULL,
.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
xfs_efd_item_committing
efdp->efd_item.li_type = XFS_LI_EFD;
efdp->efd_item.li_ops = &xfs_efd_item_ops;
efdp->efd_item.li_mountp = mp;
+ efdp->efd_item.li_ailp = mp->m_ail;
efdp->efd_efip = efip;
efdp->efd_format.efd_nextents = nextents;
efdp->efd_format.efd_efi_id = efip->efi_format.efi_id;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff