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Message-ID: <20231009182733.GD21298@frogsfrogsfrogs>
Date:   Mon, 9 Oct 2023 11:27:33 -0700
From:   "Darrick J. Wong" <djwong@...nel.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Chandan Babu R <chandan.babu@...cle.com>,
        linux-xfs@...r.kernel.org, Mateusz Guzik <mjguzik@...il.com>
Subject: Re: [PATCH v2 3/5] xfs: Replace xfs_isilocked with xfs_assert_locked

On Sat, Oct 07, 2023 at 09:35:41PM +0100, Matthew Wilcox (Oracle) wrote:
> To use the new rwsem_assert_held()/rwsem_assert_held_write(), we can't
> use the existing ASSERT macro.
> 
> xfs_assert_ilocked(ip,  XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL) checks 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.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
> ---
>  fs/xfs/libxfs/xfs_attr.c        |  2 +-
>  fs/xfs/libxfs/xfs_attr_remote.c |  2 +-
>  fs/xfs/libxfs/xfs_bmap.c        | 19 +++++----
>  fs/xfs/libxfs/xfs_defer.c       |  2 +-
>  fs/xfs/libxfs/xfs_inode_fork.c  |  2 +-
>  fs/xfs/libxfs/xfs_rtbitmap.c    |  2 +-
>  fs/xfs/libxfs/xfs_trans_inode.c |  6 +--
>  fs/xfs/scrub/readdir.c          |  4 +-
>  fs/xfs/xfs_attr_list.c          |  2 +-
>  fs/xfs/xfs_bmap_util.c          | 10 ++---
>  fs/xfs/xfs_dir2_readdir.c       |  2 +-
>  fs/xfs/xfs_dquot.c              |  4 +-
>  fs/xfs/xfs_file.c               |  4 +-
>  fs/xfs/xfs_inode.c              | 72 +++++++++++----------------------
>  fs/xfs/xfs_inode.h              |  2 +-
>  fs/xfs/xfs_inode_item.c         |  4 +-
>  fs/xfs/xfs_iops.c               |  3 +-
>  fs/xfs/xfs_qm.c                 | 10 ++---
>  fs/xfs/xfs_reflink.c            |  2 +-
>  fs/xfs/xfs_rtalloc.c            |  4 +-
>  fs/xfs/xfs_symlink.c            |  2 +-
>  fs/xfs/xfs_trans_dquot.c        |  2 +-
>  22 files changed, 66 insertions(+), 96 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index e28d93d232de..ebf0722d8963 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -224,7 +224,7 @@ int
>  xfs_attr_get_ilocked(
>  	struct xfs_da_args	*args)
>  {
> -	ASSERT(xfs_isilocked(args->dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(args->dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL);

Bikeshed: I might've gone with xfs_assert_ilocked(), especially
since that's what the commit message says. ;)

--D

>  
>  	if (!xfs_inode_hasattr(args->dp))
>  		return -ENOATTR;
> diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c
> index d440393b40eb..1c007ebf153a 100644
> --- a/fs/xfs/libxfs/xfs_attr_remote.c
> +++ b/fs/xfs/libxfs/xfs_attr_remote.c
> @@ -545,7 +545,7 @@ xfs_attr_rmtval_stale(
>  	struct xfs_buf		*bp;
>  	int			error;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	if (XFS_IS_CORRUPT(mp, map->br_startblock == DELAYSTARTBLOCK) ||
>  	    XFS_IS_CORRUPT(mp, map->br_startblock == HOLESTARTBLOCK))
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index 30c931b38853..d70cf543a52d 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -1189,7 +1189,7 @@ xfs_iread_extents(
>  	if (!xfs_need_iread_extents(ifp))
>  		return 0;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	ir.loaded = 0;
>  	xfs_iext_first(ifp, &ir.icur);
> @@ -3883,7 +3883,7 @@ xfs_bmapi_read(
>  
>  	ASSERT(*nmap >= 1);
>  	ASSERT(!(flags & ~(XFS_BMAPI_ATTRFORK | XFS_BMAPI_ENTIRE)));
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED|XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_SHARED|XFS_ILOCK_EXCL);
>  
>  	if (WARN_ON_ONCE(!ifp))
>  		return -EFSCORRUPTED;
> @@ -4354,7 +4354,7 @@ xfs_bmapi_write(
>  	ASSERT(tp != NULL);
>  	ASSERT(len > 0);
>  	ASSERT(ifp->if_format != XFS_DINODE_FMT_LOCAL);
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(!(flags & XFS_BMAPI_REMAP));
>  
>  	/* zeroing is for currently only for data extents, not metadata */
> @@ -4651,7 +4651,7 @@ xfs_bmapi_remap(
>  	ifp = xfs_ifork_ptr(ip, whichfork);
>  	ASSERT(len > 0);
>  	ASSERT(len <= (xfs_filblks_t)XFS_MAX_BMBT_EXTLEN);
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(!(flags & ~(XFS_BMAPI_ATTRFORK | XFS_BMAPI_PREALLOC |
>  			   XFS_BMAPI_NORMAP)));
>  	ASSERT((flags & (XFS_BMAPI_ATTRFORK | XFS_BMAPI_PREALLOC)) !=
> @@ -5305,7 +5305,7 @@ __xfs_bunmapi(
>  	if (xfs_is_shutdown(mp))
>  		return -EIO;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(len > 0);
>  	ASSERT(nexts >= 0);
>  
> @@ -5648,8 +5648,7 @@ xfs_bmse_merge(
>  
>  	blockcount = left->br_blockcount + got->br_blockcount;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
>  	ASSERT(xfs_bmse_can_merge(left, got, shift));
>  
>  	new = *left;
> @@ -5777,7 +5776,7 @@ xfs_bmap_collapse_extents(
>  	if (xfs_is_shutdown(mp))
>  		return -EIO;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
>  
>  	error = xfs_iread_extents(tp, ip, whichfork);
>  	if (error)
> @@ -5850,7 +5849,7 @@ xfs_bmap_can_insert_extents(
>  	int			is_empty;
>  	int			error = 0;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL);
>  
>  	if (xfs_is_shutdown(ip->i_mount))
>  		return -EIO;
> @@ -5892,7 +5891,7 @@ xfs_bmap_insert_extents(
>  	if (xfs_is_shutdown(mp))
>  		return -EIO;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
>  
>  	error = xfs_iread_extents(tp, ip, whichfork);
>  	if (error)
> diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c
> index bcfb6a4203cd..7927a721dc86 100644
> --- a/fs/xfs/libxfs/xfs_defer.c
> +++ b/fs/xfs/libxfs/xfs_defer.c
> @@ -744,7 +744,7 @@ xfs_defer_ops_capture(
>  	 * transaction.
>  	 */
>  	for (i = 0; i < dfc->dfc_held.dr_inos; i++) {
> -		ASSERT(xfs_isilocked(dfc->dfc_held.dr_ip[i], XFS_ILOCK_EXCL));
> +		xfs_assert_ilocked(dfc->dfc_held.dr_ip[i], XFS_ILOCK_EXCL);
>  		ihold(VFS_I(dfc->dfc_held.dr_ip[i]));
>  	}
>  
> diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
> index 5a2e7ddfa76d..14193e044f3d 100644
> --- a/fs/xfs/libxfs/xfs_inode_fork.c
> +++ b/fs/xfs/libxfs/xfs_inode_fork.c
> @@ -563,7 +563,7 @@ xfs_iextents_copy(
>  	struct xfs_bmbt_irec	rec;
>  	int64_t			copied = 0;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED);
>  	ASSERT(ifp->if_bytes > 0);
>  
>  	for_each_xfs_iext(ifp, &icur, &rec) {
> diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
> index fa180ab66b73..4146b8697c89 100644
> --- a/fs/xfs/libxfs/xfs_rtbitmap.c
> +++ b/fs/xfs/libxfs/xfs_rtbitmap.c
> @@ -974,7 +974,7 @@ xfs_rtfree_extent(
>  	mp = tp->t_mountp;
>  
>  	ASSERT(mp->m_rbmip->i_itemp != NULL);
> -	ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(mp->m_rbmip, XFS_ILOCK_EXCL);
>  
>  	error = xfs_rtcheck_alloc_range(mp, tp, bno, len);
>  	if (error)
> diff --git a/fs/xfs/libxfs/xfs_trans_inode.c b/fs/xfs/libxfs/xfs_trans_inode.c
> index 6b2296ff248a..05229fdef36b 100644
> --- a/fs/xfs/libxfs/xfs_trans_inode.c
> +++ b/fs/xfs/libxfs/xfs_trans_inode.c
> @@ -31,7 +31,7 @@ xfs_trans_ijoin(
>  {
>  	struct xfs_inode_log_item *iip;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	if (ip->i_itemp == NULL)
>  		xfs_inode_item_init(ip, ip->i_mount);
>  	iip = ip->i_itemp;
> @@ -60,7 +60,7 @@ xfs_trans_ichgtime(
>  	struct timespec64	tv;
>  
>  	ASSERT(tp);
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	tv = current_time(inode);
>  
> @@ -90,7 +90,7 @@ xfs_trans_log_inode(
>  	struct inode		*inode = VFS_I(ip);
>  
>  	ASSERT(iip);
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
>  
>  	tp->t_flags |= XFS_TRANS_DIRTY;
> diff --git a/fs/xfs/scrub/readdir.c b/fs/xfs/scrub/readdir.c
> index e51c1544be63..0b200bab04c8 100644
> --- a/fs/xfs/scrub/readdir.c
> +++ b/fs/xfs/scrub/readdir.c
> @@ -283,7 +283,7 @@ xchk_dir_walk(
>  		return -EIO;
>  
>  	ASSERT(S_ISDIR(VFS_I(dp)->i_mode));
> -	ASSERT(xfs_isilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL);
>  
>  	if (dp->i_df.if_format == XFS_DINODE_FMT_LOCAL)
>  		return xchk_dir_walk_sf(sc, dp, dirent_fn, priv);
> @@ -334,7 +334,7 @@ xchk_dir_lookup(
>  		return -EIO;
>  
>  	ASSERT(S_ISDIR(VFS_I(dp)->i_mode));
> -	ASSERT(xfs_isilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL);
>  
>  	if (dp->i_df.if_format == XFS_DINODE_FMT_LOCAL) {
>  		error = xfs_dir2_sf_lookup(&args);
> diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
> index 99bbbe1a0e44..235dd125c92f 100644
> --- a/fs/xfs/xfs_attr_list.c
> +++ b/fs/xfs/xfs_attr_list.c
> @@ -505,7 +505,7 @@ xfs_attr_list_ilocked(
>  {
>  	struct xfs_inode		*dp = context->dp;
>  
> -	ASSERT(xfs_isilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL);
>  
>  	/*
>  	 * Decide on what work routines to call based on the inode size.
> diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
> index fcefab687285..1bd430f69d44 100644
> --- a/fs/xfs/xfs_bmap_util.c
> +++ b/fs/xfs/xfs_bmap_util.c
> @@ -655,8 +655,8 @@ xfs_can_free_eofblocks(
>  	 * Caller must either hold the exclusive io lock; or be inactivating
>  	 * the inode, which guarantees there are no other users of the inode.
>  	 */
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL) ||
> -	       (VFS_I(ip)->i_state & I_FREEING));
> +	if (!(VFS_I(ip)->i_state & I_FREEING))
> +		xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL);
>  
>  	/* prealloc/delalloc exists only on regular files */
>  	if (!S_ISREG(VFS_I(ip)->i_mode))
> @@ -1112,8 +1112,7 @@ xfs_collapse_file_space(
>  	xfs_fileoff_t		shift_fsb = XFS_B_TO_FSB(mp, len);
>  	bool			done = false;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
> -	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL);
>  
>  	trace_xfs_collapse_file_space(ip);
>  
> @@ -1182,8 +1181,7 @@ xfs_insert_file_space(
>  	xfs_fileoff_t		shift_fsb = XFS_B_TO_FSB(mp, len);
>  	bool			done = false;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
> -	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL);
>  
>  	trace_xfs_insert_file_space(ip);
>  
> diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
> index 9f3ceb461515..95cd8b9cf3dc 100644
> --- a/fs/xfs/xfs_dir2_readdir.c
> +++ b/fs/xfs/xfs_dir2_readdir.c
> @@ -521,7 +521,7 @@ xfs_readdir(
>  		return -EIO;
>  
>  	ASSERT(S_ISDIR(VFS_I(dp)->i_mode));
> -	ASSERT(xfs_isilocked(dp, XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL));
> +	xfs_assert_ilocked(dp, XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL);
>  	XFS_STATS_INC(dp->i_mount, xs_dir_getdents);
>  
>  	args.dp = dp;
> diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
> index ac6ba646624d..4b2f1b82badc 100644
> --- a/fs/xfs/xfs_dquot.c
> +++ b/fs/xfs/xfs_dquot.c
> @@ -949,7 +949,7 @@ xfs_qm_dqget_inode(
>  	if (error)
>  		return error;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(xfs_inode_dquot(ip, type) == NULL);
>  
>  	id = xfs_qm_id_for_quotatype(ip, type);
> @@ -1006,7 +1006,7 @@ xfs_qm_dqget_inode(
>  	}
>  
>  dqret:
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	trace_xfs_dqget_miss(dqp);
>  	*O_dqpp = dqp;
>  	return 0;
> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
> index 203700278ddb..9ba2b89b3862 100644
> --- a/fs/xfs/xfs_file.c
> +++ b/fs/xfs/xfs_file.c
> @@ -842,7 +842,7 @@ xfs_break_dax_layouts(
>  {
>  	struct page		*page;
>  
> -	ASSERT(xfs_isilocked(XFS_I(inode), XFS_MMAPLOCK_EXCL));
> +	xfs_assert_ilocked(XFS_I(inode), XFS_MMAPLOCK_EXCL);
>  
>  	page = dax_layout_busy_page(inode->i_mapping);
>  	if (!page)
> @@ -863,7 +863,7 @@ xfs_break_layouts(
>  	bool			retry;
>  	int			error;
>  
> -	ASSERT(xfs_isilocked(XFS_I(inode), XFS_IOLOCK_SHARED|XFS_IOLOCK_EXCL));
> +	xfs_assert_ilocked(XFS_I(inode), XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL);
>  
>  	do {
>  		retry = false;
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index 4d55f58d99b7..812d6f255d84 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -333,52 +333,26 @@ xfs_ilock_demote(
>  	trace_xfs_ilock_demote(ip, lock_flags, _RET_IP_);
>  }
>  
> -#if defined(DEBUG) || defined(XFS_WARN)
> -static inline bool
> -__xfs_rwsem_islocked(
> -	struct rw_semaphore	*rwsem,
> -	bool			shared)
> -{
> -	if (!debug_locks)
> -		return rwsem_is_locked(rwsem);
> -
> -	if (!shared)
> -		return lockdep_is_held_type(rwsem, 0);
> -
> -	/*
> -	 * We are checking that the lock is held at least in shared
> -	 * mode but don't care that it might be held exclusively
> -	 * (i.e. shared | excl). Hence we check if the lock is held
> -	 * in any mode rather than an explicit shared mode.
> -	 */
> -	return lockdep_is_held_type(rwsem, -1);
> -}
> -
> -bool
> -xfs_isilocked(
> +void
> +xfs_assert_ilocked(
>  	struct xfs_inode	*ip,
>  	uint			lock_flags)
>  {
> -	if (lock_flags & (XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)) {
> -		if (!(lock_flags & XFS_ILOCK_SHARED))
> -			return !!ip->i_lock.mr_writer;
> -		return rwsem_is_locked(&ip->i_lock.mr_lock);
> -	}
> -
> -	if (lock_flags & (XFS_MMAPLOCK_EXCL|XFS_MMAPLOCK_SHARED)) {
> -		return __xfs_rwsem_islocked(&VFS_I(ip)->i_mapping->invalidate_lock,
> -				(lock_flags & XFS_MMAPLOCK_SHARED));
> -	}
> -
> -	if (lock_flags & (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED)) {
> -		return __xfs_rwsem_islocked(&VFS_I(ip)->i_rwsem,
> -				(lock_flags & XFS_IOLOCK_SHARED));
> -	}
> -
> -	ASSERT(0);
> -	return false;
> +	if (lock_flags & XFS_ILOCK_SHARED)
> +		rwsem_assert_held(&ip->i_lock.mr_lock);
> +	else if (lock_flags & XFS_ILOCK_EXCL)
> +		BUG_ON(!ip->i_lock.mr_writer);
> +
> +	if (lock_flags & XFS_MMAPLOCK_SHARED)
> +		rwsem_assert_held(&VFS_I(ip)->i_mapping->invalidate_lock);
> +	else if (lock_flags & XFS_MMAPLOCK_EXCL)
> +		rwsem_assert_held_write(&VFS_I(ip)->i_mapping->invalidate_lock);
> +
> +	if (lock_flags & XFS_IOLOCK_SHARED)
> +		rwsem_assert_held(&VFS_I(ip)->i_rwsem);
> +	else if (lock_flags & XFS_IOLOCK_EXCL)
> +		rwsem_assert_held_write(&VFS_I(ip)->i_rwsem);
>  }
> -#endif
>  
>  /*
>   * xfs_lockdep_subclass_ok() is only used in an ASSERT, so is only called when
> @@ -1335,9 +1309,9 @@ xfs_itruncate_extents_flags(
>  	xfs_filblks_t		unmap_len;
>  	int			error = 0;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> -	ASSERT(!atomic_read(&VFS_I(ip)->i_count) ||
> -	       xfs_isilocked(ip, XFS_IOLOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
> +	if (atomic_read(&VFS_I(ip)->i_count))
> +		xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL);
>  	ASSERT(new_size <= XFS_ISIZE(ip));
>  	ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
>  	ASSERT(ip->i_itemp != NULL);
> @@ -1598,7 +1572,7 @@ xfs_inactive_ifree(
>  	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
>  
>  	error = xfs_ifree(tp, ip);
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	if (error) {
>  		/*
>  		 * If we fail to free the inode, shut down.  The cancel
> @@ -2352,7 +2326,7 @@ xfs_ifree(
>  	struct xfs_inode_log_item *iip = ip->i_itemp;
>  	int			error;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(VFS_I(ip)->i_nlink == 0);
>  	ASSERT(ip->i_df.if_nextents == 0);
>  	ASSERT(ip->i_disk_size == 0 || !S_ISREG(VFS_I(ip)->i_mode));
> @@ -2421,7 +2395,7 @@ static void
>  xfs_iunpin(
>  	struct xfs_inode	*ip)
>  {
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED);
>  
>  	trace_xfs_inode_unpin_nowait(ip, _RET_IP_);
>  
> @@ -3182,7 +3156,7 @@ xfs_iflush(
>  	struct xfs_mount	*mp = ip->i_mount;
>  	int			error;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED);
>  	ASSERT(xfs_iflags_test(ip, XFS_IFLUSHING));
>  	ASSERT(ip->i_df.if_format != XFS_DINODE_FMT_BTREE ||
>  	       ip->i_df.if_nextents > XFS_IFORK_MAXEXT(ip, XFS_DATA_FORK));
> diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
> index 0c5bdb91152e..b70f3e8e4525 100644
> --- a/fs/xfs/xfs_inode.h
> +++ b/fs/xfs/xfs_inode.h
> @@ -515,7 +515,7 @@ void		xfs_ilock(xfs_inode_t *, uint);
>  int		xfs_ilock_nowait(xfs_inode_t *, uint);
>  void		xfs_iunlock(xfs_inode_t *, uint);
>  void		xfs_ilock_demote(xfs_inode_t *, uint);
> -bool		xfs_isilocked(struct xfs_inode *, uint);
> +void		xfs_assert_ilocked(struct xfs_inode *, uint);
>  uint		xfs_ilock_data_map_shared(struct xfs_inode *);
>  uint		xfs_ilock_attr_map_shared(struct xfs_inode *);
>  
> diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
> index 127b2410eb20..02427b53328f 100644
> --- a/fs/xfs/xfs_inode_item.c
> +++ b/fs/xfs/xfs_inode_item.c
> @@ -648,7 +648,7 @@ xfs_inode_item_pin(
>  {
>  	struct xfs_inode	*ip = INODE_ITEM(lip)->ili_inode;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(lip->li_buf);
>  
>  	trace_xfs_inode_pin(ip, _RET_IP_);
> @@ -754,7 +754,7 @@ xfs_inode_item_release(
>  	unsigned short		lock_flags;
>  
>  	ASSERT(ip->i_itemp != NULL);
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	lock_flags = iip->ili_lock_flags;
>  	iip->ili_lock_flags = 0;
> diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
> index 1c1e6171209d..2492b746912e 100644
> --- a/fs/xfs/xfs_iops.c
> +++ b/fs/xfs/xfs_iops.c
> @@ -791,8 +791,7 @@ xfs_setattr_size(
>  	uint			lock_flags = 0;
>  	bool			did_zeroing = false;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
> -	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL);
>  	ASSERT(S_ISREG(inode->i_mode));
>  	ASSERT((iattr->ia_valid & (ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
>  		ATTR_MTIME_SET|ATTR_TIMES_SET)) == 0);
> diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
> index 086e78a6143a..660e7878db0d 100644
> --- a/fs/xfs/xfs_qm.c
> +++ b/fs/xfs/xfs_qm.c
> @@ -254,7 +254,7 @@ xfs_qm_dqattach_one(
>  	struct xfs_dquot	*dqp;
>  	int			error;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	error = 0;
>  
>  	/*
> @@ -322,7 +322,7 @@ xfs_qm_dqattach_locked(
>  	if (!xfs_qm_need_dqattach(ip))
>  		return 0;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) {
>  		error = xfs_qm_dqattach_one(ip, XFS_DQTYPE_USER,
> @@ -353,7 +353,7 @@ xfs_qm_dqattach_locked(
>  	 * Don't worry about the dquots that we may have attached before any
>  	 * error - they'll get detached later if it has not already been done.
>  	 */
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	return error;
>  }
>  
> @@ -1808,7 +1808,7 @@ xfs_qm_vop_chown(
>  				 XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
>  
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	ASSERT(XFS_IS_QUOTA_ON(ip->i_mount));
>  
>  	/* old dquot */
> @@ -1896,7 +1896,7 @@ xfs_qm_vop_create_dqattach(
>  	if (!XFS_IS_QUOTA_ON(mp))
>  		return;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	if (udqp && XFS_IS_UQUOTA_ON(mp)) {
>  		ASSERT(ip->i_udquot == NULL);
> diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
> index eb9102453aff..1267e008014e 100644
> --- a/fs/xfs/xfs_reflink.c
> +++ b/fs/xfs/xfs_reflink.c
> @@ -527,7 +527,7 @@ xfs_reflink_allocate_cow(
>  	int			error;
>  	bool			found;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  	if (!ip->i_cowfp) {
>  		ASSERT(!xfs_is_reflink_inode(ip));
>  		xfs_ifork_init_cow(ip);
> diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
> index 16534e9873f6..29382bc9d373 100644
> --- a/fs/xfs/xfs_rtalloc.c
> +++ b/fs/xfs/xfs_rtalloc.c
> @@ -1188,7 +1188,7 @@ xfs_rtallocate_extent(
>  	xfs_fsblock_t	sb;		/* summary file block number */
>  	struct xfs_buf	*sumbp;		/* summary file block buffer */
>  
> -	ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(mp->m_rbmip, XFS_ILOCK_EXCL);
>  	ASSERT(minlen > 0 && minlen <= maxlen);
>  
>  	/*
> @@ -1431,7 +1431,7 @@ xfs_rtpick_extent(
>  	uint64_t	seq;		/* sequence number of file creation */
>  	uint64_t	*seqp;		/* pointer to seqno in inode */
>  
> -	ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(mp->m_rbmip, XFS_ILOCK_EXCL);
>  
>  	seqp = (uint64_t *)&VFS_I(mp->m_rbmip)->i_atime;
>  	if (!(mp->m_rbmip->i_diflags & XFS_DIFLAG_NEWRTBM)) {
> diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
> index 85e433df6a3f..2ca157de4a73 100644
> --- a/fs/xfs/xfs_symlink.c
> +++ b/fs/xfs/xfs_symlink.c
> @@ -43,7 +43,7 @@ xfs_readlink_bmap_ilocked(
>  	int			fsblocks = 0;
>  	int			offset;
>  
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL);
>  
>  	fsblocks = xfs_symlink_blocks(mp, pathlen);
>  	error = xfs_bmapi_read(ip, 0, fsblocks, mval, &nmaps, 0);
> diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
> index aa00cf67ad72..9c159d016ecf 100644
> --- a/fs/xfs/xfs_trans_dquot.c
> +++ b/fs/xfs/xfs_trans_dquot.c
> @@ -796,7 +796,7 @@ xfs_trans_reserve_quota_nblks(
>  		return 0;
>  
>  	ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino));
> -	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
> +	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
>  
>  	if (force)
>  		qflags |= XFS_QMOPT_FORCE_RES;
> -- 
> 2.40.1
> 

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