Re: [PATCH V2 04/12] xfs: Use xfs_extnum_t instead of basic data types

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On 28 Jul 2021 at 03:29, Darrick J. Wong wrote:
> On Mon, Jul 26, 2021 at 05:15:33PM +0530, Chandan Babu R wrote:
>> xfs_extnum_t is the type to use to declare variables which have values
>> obtained from xfs_dinode->di_[a]nextents. This commit replaces basic
>> types (e.g. uint32_t) with xfs_extnum_t for such variables.
>>
>> Signed-off-by: Chandan Babu R <chandanrlinux@xxxxxxxxx>
>
> Not sure why the structure members change places, but otherwise LGTM.

The re-arrangement of local variables was supposed to happen in the patch
where "xfs_[a]extnum_t" get promoted to larger data types. I will make those
movements happen in that patch.

>
> Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>

Thanks for the review.

>
> --D
>
>
>> ---
>>  fs/xfs/libxfs/xfs_bmap.c       | 2 +-
>>  fs/xfs/libxfs/xfs_inode_buf.c  | 2 +-
>>  fs/xfs/libxfs/xfs_inode_fork.c | 2 +-
>>  fs/xfs/scrub/inode.c           | 2 +-
>>  fs/xfs/scrub/inode_repair.c    | 2 +-
>>  fs/xfs/xfs_trace.h             | 2 +-
>>  6 files changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
>> index 282aeb3c0e49..e5d243fd187d 100644
>> --- a/fs/xfs/libxfs/xfs_bmap.c
>> +++ b/fs/xfs/libxfs/xfs_bmap.c
>> @@ -53,9 +53,9 @@ xfs_bmap_compute_maxlevels(
>>  	xfs_mount_t	*mp,		/* file system mount structure */
>>  	int		whichfork)	/* data or attr fork */
>>  {
>> +	xfs_extnum_t	maxleafents;	/* max leaf entries possible */
>>  	int		level;		/* btree level */
>>  	uint		maxblocks;	/* max blocks at this level */
>> -	uint		maxleafents;	/* max leaf entries possible */
>>  	int		maxrootrecs;	/* max records in root block */
>>  	int		minleafrecs;	/* min records in leaf block */
>>  	int		minnoderecs;	/* min records in node block */
>> diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
>> index 419b92dc6ac8..cba9a38f3270 100644
>> --- a/fs/xfs/libxfs/xfs_inode_buf.c
>> +++ b/fs/xfs/libxfs/xfs_inode_buf.c
>> @@ -342,7 +342,7 @@ xfs_dinode_verify_fork(
>>  	struct xfs_mount	*mp,
>>  	int			whichfork)
>>  {
>> -	uint32_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
>> +	xfs_extnum_t		di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
>>  	xfs_extnum_t		max_extents;
>>
>>  	switch (XFS_DFORK_FORMAT(dip, whichfork)) {
>> diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
>> index c6856ec95335..a1e40df585a3 100644
>> --- a/fs/xfs/libxfs/xfs_inode_fork.c
>> +++ b/fs/xfs/libxfs/xfs_inode_fork.c
>> @@ -107,7 +107,7 @@ xfs_iformat_extents(
>>  	struct xfs_mount	*mp = ip->i_mount;
>>  	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
>>  	int			state = xfs_bmap_fork_to_state(whichfork);
>> -	int			nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>> +	xfs_extnum_t		nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>>  	int			size = nex * sizeof(xfs_bmbt_rec_t);
>>  	struct xfs_iext_cursor	icur;
>>  	struct xfs_bmbt_rec	*dp;
>> diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
>> index e6068590484b..246d11ca133f 100644
>> --- a/fs/xfs/scrub/inode.c
>> +++ b/fs/xfs/scrub/inode.c
>> @@ -219,7 +219,7 @@ xchk_dinode(
>>  	size_t			fork_recs;
>>  	unsigned long long	isize;
>>  	uint64_t		flags2;
>> -	uint32_t		nextents;
>> +	xfs_extnum_t		nextents;
>>  	prid_t			prid;
>>  	uint16_t		flags;
>>  	uint16_t		mode;
>> diff --git a/fs/xfs/scrub/inode_repair.c b/fs/xfs/scrub/inode_repair.c
>> index a44d7b48c374..042c7d0bc0f5 100644
>> --- a/fs/xfs/scrub/inode_repair.c
>> +++ b/fs/xfs/scrub/inode_repair.c
>> @@ -597,9 +597,9 @@ xrep_dinode_bad_extents_fork(
>>  {
>>  	struct xfs_bmbt_irec	new;
>>  	struct xfs_bmbt_rec	*dp;
>> +	xfs_extnum_t		nex;
>>  	bool			isrt;
>>  	int			i;
>> -	int			nex;
>>  	int			fork_size;
>>
>>  	nex = XFS_DFORK_NEXTENTS(dip, whichfork);
>> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
>> index affc9b5834fb..5ed11f894f79 100644
>> --- a/fs/xfs/xfs_trace.h
>> +++ b/fs/xfs/xfs_trace.h
>> @@ -2338,7 +2338,7 @@ DECLARE_EVENT_CLASS(xfs_swap_extent_class,
>>  		__field(int, which)
>>  		__field(xfs_ino_t, ino)
>>  		__field(int, format)
>> -		__field(int, nex)
>> +		__field(xfs_extnum_t, nex)
>>  		__field(int, broot_size)
>>  		__field(int, fork_off)
>>  	),
>> --
>> 2.30.2
>>


--
chandan



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