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f798accd59
This reverts commit e44df26647.
Users reported regressions due to enabling multi-grained timestamps
unconditionally. As no clear consensus on a solution has come up and the
discussion has gone back to the drawing board revert the infrastructure
changes for. If it isn't code that's here to stay, make it go away.
Message-ID: <20230920-keine-eile-c9755b5825db@brauner>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
129 lines
3.3 KiB
C
129 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_shared.h"
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#include "xfs_format.h"
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#include "xfs_log_format.h"
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#include "xfs_trans_resv.h"
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#include "xfs_mount.h"
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#include "xfs_inode.h"
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#include "xfs_trans.h"
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#include "xfs_trans_priv.h"
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#include "xfs_inode_item.h"
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#include <linux/iversion.h>
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/*
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* Add a locked inode to the transaction.
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*
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* The inode must be locked, and it cannot be associated with any transaction.
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* If lock_flags is non-zero the inode will be unlocked on transaction commit.
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*/
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void
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xfs_trans_ijoin(
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struct xfs_trans *tp,
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struct xfs_inode *ip,
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uint lock_flags)
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{
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struct xfs_inode_log_item *iip;
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ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
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if (ip->i_itemp == NULL)
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xfs_inode_item_init(ip, ip->i_mount);
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iip = ip->i_itemp;
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ASSERT(iip->ili_lock_flags == 0);
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iip->ili_lock_flags = lock_flags;
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ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
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/* Reset the per-tx dirty context and add the item to the tx. */
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iip->ili_dirty_flags = 0;
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xfs_trans_add_item(tp, &iip->ili_item);
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}
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/*
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* Transactional inode timestamp update. Requires the inode to be locked and
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* joined to the transaction supplied. Relies on the transaction subsystem to
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* track dirty state and update/writeback the inode accordingly.
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*/
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void
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xfs_trans_ichgtime(
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struct xfs_trans *tp,
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struct xfs_inode *ip,
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int flags)
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{
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struct inode *inode = VFS_I(ip);
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struct timespec64 tv;
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ASSERT(tp);
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ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
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tv = current_time(inode);
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if (flags & XFS_ICHGTIME_MOD)
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inode->i_mtime = tv;
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if (flags & XFS_ICHGTIME_CHG)
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inode_set_ctime_to_ts(inode, tv);
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if (flags & XFS_ICHGTIME_CREATE)
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ip->i_crtime = tv;
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}
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/*
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* This is called to mark the fields indicated in fieldmask as needing to be
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* logged when the transaction is committed. The inode must already be
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* associated with the given transaction. All we do here is record where the
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* inode was dirtied and mark the transaction and inode log item dirty;
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* everything else is done in the ->precommit log item operation after the
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* changes in the transaction have been completed.
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*/
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void
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xfs_trans_log_inode(
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struct xfs_trans *tp,
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struct xfs_inode *ip,
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uint flags)
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{
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struct xfs_inode_log_item *iip = ip->i_itemp;
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struct inode *inode = VFS_I(ip);
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ASSERT(iip);
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ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
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ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
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tp->t_flags |= XFS_TRANS_DIRTY;
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/*
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* First time we log the inode in a transaction, bump the inode change
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* counter if it is configured for this to occur. While we have the
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* inode locked exclusively for metadata modification, we can usually
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* avoid setting XFS_ILOG_CORE if no one has queried the value since
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* the last time it was incremented. If we have XFS_ILOG_CORE already
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* set however, then go ahead and bump the i_version counter
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* unconditionally.
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*/
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if (!test_and_set_bit(XFS_LI_DIRTY, &iip->ili_item.li_flags)) {
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if (IS_I_VERSION(inode) &&
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inode_maybe_inc_iversion(inode, flags & XFS_ILOG_CORE))
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flags |= XFS_ILOG_IVERSION;
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}
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iip->ili_dirty_flags |= flags;
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}
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int
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xfs_trans_roll_inode(
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struct xfs_trans **tpp,
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struct xfs_inode *ip)
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{
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int error;
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xfs_trans_log_inode(*tpp, ip, XFS_ILOG_CORE);
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error = xfs_trans_roll(tpp);
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if (!error)
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xfs_trans_ijoin(*tpp, ip, 0);
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return error;
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}
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