mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
3fed24fffc
To use the new rwsem_assert_held()/rwsem_assert_held_write(), we can't use the existing ASSERT macro. Add a new xfs_assert_ilocked() and convert all the callers. Fix an apparent bug in xfs_isilocked(): If the caller specifies XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL, xfs_assert_ilocked() will check both the IOLOCK and the ILOCK are held for write. xfs_isilocked() only checked that the ILOCK was held for write. xfs_assert_ilocked() is always on, even if DEBUG or XFS_WARN aren't defined. It's a cheap check, so I don't think it's worth defining it away. Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org> Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
// 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_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;
|
|
}
|