/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * Copyright (c) 2000-2006 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
#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"
return 0;
}
+/*
+ * Handle logging requirements of various synchronous types of write.
+ */
+int
+xfs_write_sync_logforce(
+ xfs_mount_t *mp,
+ xfs_inode_t *ip)
+{
+ int error = 0;
+
+ /*
+ * If we're treating this as O_DSYNC and we have not updated the
+ * size, force the log.
+ */
+ if (!(mp->m_flags & XFS_MOUNT_OSYNCISOSYNC) &&
+ !(ip->i_update_size)) {
+ xfs_inode_log_item_t *iip = ip->i_itemp;
+
+ /*
+ * If an allocation transaction occurred
+ * without extending the size, then we have to force
+ * the log up the proper point to ensure that the
+ * allocation is permanent. We can't count on
+ * the fact that buffered writes lock out direct I/O
+ * writes - the direct I/O write could have extended
+ * the size nontransactionally, then finished before
+ * we started. xfs_write_file will think that the file
+ * didn't grow but the update isn't safe unless the
+ * size change is logged.
+ *
+ * Force the log if we've committed a transaction
+ * against the inode or if someone else has and
+ * the commit record hasn't gone to disk (e.g.
+ * the inode is pinned). This guarantees that
+ * all changes affecting the inode are permanent
+ * when we return.
+ */
+ if (iip && iip->ili_last_lsn) {
+ xfs_log_force(mp, iip->ili_last_lsn,
+ XFS_LOG_FORCE | XFS_LOG_SYNC);
+ } else if (xfs_ipincount(ip) > 0) {
+ xfs_log_force(mp, (xfs_lsn_t)0,
+ XFS_LOG_FORCE | XFS_LOG_SYNC);
+ }
+
+ } else {
+ xfs_trans_t *tp;
+
+ /*
+ * O_SYNC or O_DSYNC _with_ a size update are handled
+ * the same way.
+ *
+ * If the write was synchronous then we need to make
+ * sure that the inode modification time is permanent.
+ * We'll have updated the timestamp above, so here
+ * we use a synchronous transaction to log the inode.
+ * It's not fast, but it's necessary.
+ *
+ * If this a dsync write and the size got changed
+ * non-transactionally, then we need to ensure that
+ * the size change gets logged in a synchronous
+ * transaction.
+ */
+ tp = xfs_trans_alloc(mp, XFS_TRANS_WRITE_SYNC);
+ if ((error = xfs_trans_reserve(tp, 0,
+ XFS_SWRITE_LOG_RES(mp),
+ 0, 0, 0))) {
+ /* Transaction reserve failed */
+ xfs_trans_cancel(tp, 0);
+ } else {
+ /* Transaction reserve successful */
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+ xfs_trans_ihold(tp, ip);
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+ xfs_trans_set_sync(tp);
+ error = xfs_trans_commit(tp, 0, NULL);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ }
+ }
+
+ return error;
+}
+
/*
* Force a shutdown of the filesystem instantly while keeping
* the filesystem consistent. We don't do an unmount here; just shutdown
xfs_mount_t *mp;
mp = XFS_BHVTOM(bdp);
- logerror = flags & XFS_LOG_IO_ERROR;
+ logerror = flags & SHUTDOWN_LOG_IO_ERROR;
- if (!(flags & XFS_FORCE_UMOUNT)) {
- cmn_err(CE_NOTE,
- "xfs_force_shutdown(%s,0x%x) called from line %d of file %s. Return address = 0x%p",
- mp->m_fsname,flags,lnnum,fname,__return_address);
+ if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
+ cmn_err(CE_NOTE, "xfs_force_shutdown(%s,0x%x) called from "
+ "line %d of file %s. Return address = 0x%p",
+ mp->m_fsname, flags, lnnum, fname, __return_address);
}
/*
* No need to duplicate efforts.
/*
* This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
* queue up anybody new on the log reservations, and wakes up
- * everybody who's sleeping on log reservations and tells
- * them the bad news.
+ * everybody who's sleeping on log reservations to tell them
+ * the bad news.
*/
if (xfs_log_force_umount(mp, logerror))
return;
- if (flags & XFS_CORRUPT_INCORE) {
+ if (flags & SHUTDOWN_CORRUPT_INCORE) {
xfs_cmn_err(XFS_PTAG_SHUTDOWN_CORRUPT, CE_ALERT, mp,
"Corruption of in-memory data detected. Shutting down filesystem: %s",
mp->m_fsname);
if (XFS_ERRLEVEL_HIGH <= xfs_error_level) {
xfs_stack_trace();
}
- } else if (!(flags & XFS_FORCE_UMOUNT)) {
+ } else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
if (logerror) {
xfs_cmn_err(XFS_PTAG_SHUTDOWN_LOGERROR, CE_ALERT, mp,
- "Log I/O Error Detected. Shutting down filesystem: %s",
+ "Log I/O Error Detected. Shutting down filesystem: %s",
+ mp->m_fsname);
+ } else if (flags & SHUTDOWN_DEVICE_REQ) {
+ xfs_cmn_err(XFS_PTAG_SHUTDOWN_IOERROR, CE_ALERT, mp,
+ "All device paths lost. Shutting down filesystem: %s",
mp->m_fsname);
- } else if (!(flags & XFS_SHUTDOWN_REMOTE_REQ)) {
+ } else if (!(flags & SHUTDOWN_REMOTE_REQ)) {
xfs_cmn_err(XFS_PTAG_SHUTDOWN_IOERROR, CE_ALERT, mp,
- "I/O Error Detected. Shutting down filesystem: %s",
+ "I/O Error Detected. Shutting down filesystem: %s",
mp->m_fsname);
}
}
- if (!(flags & XFS_FORCE_UMOUNT)) {
- cmn_err(CE_ALERT,
- "Please umount the filesystem, and rectify the problem(s)");
+ if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
+ cmn_err(CE_ALERT, "Please umount the filesystem, "
+ "and rectify the problem(s)");
}
}
* from bwrite and we could be tracing a buffer that has
* been reused.
*/
- xfs_force_shutdown(mp, XFS_METADATA_IO_ERROR);
+ xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
}
return (error);
}
git://git.onelab.eu / linux-2.6.git / blobdiff