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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_trans.h"
#include "xfs_trans_priv.h"
#include "xfs_inode_item.h"
#include <linux/iversion.h>
/*
* Add a locked inode to the transaction.
*
* The inode must be locked, and it cannot be associated with any transaction.
* If lock_flags is non-zero the inode will be unlocked on transaction commit.
*/
void
xfs_trans_ijoin(
struct xfs_trans *tp,
struct xfs_inode *ip,
uint lock_flags)
{
struct xfs_inode_log_item *iip;
xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
if (ip->i_itemp == NULL)
xfs_inode_item_init(ip, ip->i_mount);
iip = ip->i_itemp;
ASSERT(iip->ili_lock_flags == 0);
iip->ili_lock_flags = lock_flags;
ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
/* Reset the per-tx dirty context and add the item to the tx. */
iip->ili_dirty_flags = 0;
xfs_trans_add_item(tp, &iip->ili_item);
}
/*
* Transactional inode timestamp update. Requires the inode to be locked and
* joined to the transaction supplied. Relies on the transaction subsystem to
* track dirty state and update/writeback the inode accordingly.
*/
void
xfs_trans_ichgtime(
struct xfs_trans *tp,
struct xfs_inode *ip,
int flags)
{
struct inode *inode = VFS_I(ip);
struct timespec64 tv;
ASSERT(tp);
xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
tv = current_time(inode);
if (flags & XFS_ICHGTIME_MOD)
inode_set_mtime_to_ts(inode, tv);
if (flags & XFS_ICHGTIME_CHG)
inode_set_ctime_to_ts(inode, tv);
if (flags & XFS_ICHGTIME_ACCESS)
inode_set_atime_to_ts(inode, tv);
if (flags & XFS_ICHGTIME_CREATE)
ip->i_crtime = tv;
}
/*
* This is called to mark the fields indicated in fieldmask as needing to be
* logged when the transaction is committed. The inode must already be
* associated with the given transaction. All we do here is record where the
* inode was dirtied and mark the transaction and inode log item dirty;
* everything else is done in the ->precommit log item operation after the
* changes in the transaction have been completed.
*/
void
xfs_trans_log_inode(
struct xfs_trans *tp,
struct xfs_inode *ip,
uint flags)
{
struct xfs_inode_log_item *iip = ip->i_itemp;
struct inode *inode = VFS_I(ip);
ASSERT(iip);
xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
tp->t_flags |= XFS_TRANS_DIRTY;
/*
* First time we log the inode in a transaction, bump the inode change
* counter if it is configured for this to occur. While we have the
* inode locked exclusively for metadata modification, we can usually
* avoid setting XFS_ILOG_CORE if no one has queried the value since
* the last time it was incremented. If we have XFS_ILOG_CORE already
* set however, then go ahead and bump the i_version counter
* unconditionally.
*/
if (!test_and_set_bit(XFS_LI_DIRTY, &iip->ili_item.li_flags)) {
if (IS_I_VERSION(inode) &&
inode_maybe_inc_iversion(inode, flags & XFS_ILOG_CORE))
flags |= XFS_ILOG_IVERSION;
}
iip->ili_dirty_flags |= flags;
}
int
xfs_trans_roll_inode(
struct xfs_trans **tpp,
struct xfs_inode *ip)
{
int error;
xfs_trans_log_inode(*tpp, ip, XFS_ILOG_CORE);
error = xfs_trans_roll(tpp);
if (!error)
xfs_trans_ijoin(*tpp, ip, 0);
return error;
}
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