diff mbox series

[v4,1/3] xfs: delete duplicated tp->t_dqinfo null check and allocation

Message ID 1602130749-23093-2-git-send-email-kaixuxia@tencent.com (mailing list archive)
State Superseded
Headers show
Series [v4,1/3] xfs: delete duplicated tp->t_dqinfo null check and allocation | expand

Commit Message

Kaixu Xia Oct. 8, 2020, 4:19 a.m. UTC 
From: Kaixu Xia <kaixuxia@tencent.com>

The function xfs_trans_mod_dquot_byino() wrap around xfs_trans_mod_dquot()
to account for quotas, and also there is the function call chain
xfs_trans_reserve_quota_bydquots -> xfs_trans_dqresv -> xfs_trans_mod_dquot,
both of them do the duplicated null check and allocation. Thus
we can delete the duplicated operation from them.

Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
---
 fs/xfs/xfs_trans_dquot.c | 7 -------
 1 file changed, 7 deletions(-)

Comments

Brian Foster Oct. 9, 2020, 11:32 a.m. UTC | #1 
On Thu, Oct 08, 2020 at 12:19:07PM +0800, xiakaixu1987@gmail.com wrote:
> From: Kaixu Xia <kaixuxia@tencent.com>
> 
> The function xfs_trans_mod_dquot_byino() wrap around xfs_trans_mod_dquot()
> to account for quotas, and also there is the function call chain
> xfs_trans_reserve_quota_bydquots -> xfs_trans_dqresv -> xfs_trans_mod_dquot,
> both of them do the duplicated null check and allocation. Thus
> we can delete the duplicated operation from them.
> 
> Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
> ---

Seems reasonable:

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  fs/xfs/xfs_trans_dquot.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
> index fe45b0c3970c..67f1e275b34d 100644
> --- a/fs/xfs/xfs_trans_dquot.c
> +++ b/fs/xfs/xfs_trans_dquot.c
> @@ -143,9 +143,6 @@ xfs_trans_mod_dquot_byino(
>  	    xfs_is_quota_inode(&mp->m_sb, ip->i_ino))
>  		return;
>  
> -	if (tp->t_dqinfo == NULL)
> -		xfs_trans_alloc_dqinfo(tp);
> -
>  	if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot)
>  		(void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
>  	if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot)
> @@ -698,7 +695,6 @@ xfs_trans_dqresv(
>  	 * because we don't have the luxury of a transaction envelope then.
>  	 */
>  	if (tp) {
> -		ASSERT(tp->t_dqinfo);
>  		ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
>  		if (nblks != 0)
>  			xfs_trans_mod_dquot(tp, dqp,
> @@ -752,9 +748,6 @@ xfs_trans_reserve_quota_bydquots(
>  	if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
>  		return 0;
>  
> -	if (tp && tp->t_dqinfo == NULL)
> -		xfs_trans_alloc_dqinfo(tp);
> -
>  	ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
>  
>  	if (udqp) {
> -- 
> 2.20.0
>
Darrick J. Wong Oct. 26, 2020, 10:51 p.m. UTC | #2 
On Thu, Oct 08, 2020 at 12:19:07PM +0800, xiakaixu1987@gmail.com wrote:
> From: Kaixu Xia <kaixuxia@tencent.com>
> 
> The function xfs_trans_mod_dquot_byino() wrap around xfs_trans_mod_dquot()
> to account for quotas, and also there is the function call chain
> xfs_trans_reserve_quota_bydquots -> xfs_trans_dqresv -> xfs_trans_mod_dquot,
> both of them do the duplicated null check and allocation. Thus
> we can delete the duplicated operation from them.
> 
> Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>

Looks good to me,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
>  fs/xfs/xfs_trans_dquot.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
> index fe45b0c3970c..67f1e275b34d 100644
> --- a/fs/xfs/xfs_trans_dquot.c
> +++ b/fs/xfs/xfs_trans_dquot.c
> @@ -143,9 +143,6 @@ xfs_trans_mod_dquot_byino(
>  	    xfs_is_quota_inode(&mp->m_sb, ip->i_ino))
>  		return;
>  
> -	if (tp->t_dqinfo == NULL)
> -		xfs_trans_alloc_dqinfo(tp);
> -
>  	if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot)
>  		(void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
>  	if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot)
> @@ -698,7 +695,6 @@ xfs_trans_dqresv(
>  	 * because we don't have the luxury of a transaction envelope then.
>  	 */
>  	if (tp) {
> -		ASSERT(tp->t_dqinfo);
>  		ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
>  		if (nblks != 0)
>  			xfs_trans_mod_dquot(tp, dqp,
> @@ -752,9 +748,6 @@ xfs_trans_reserve_quota_bydquots(
>  	if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
>  		return 0;
>  
> -	if (tp && tp->t_dqinfo == NULL)
> -		xfs_trans_alloc_dqinfo(tp);
> -
>  	ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
>  
>  	if (udqp) {
> -- 
> 2.20.0
>
diff mbox series

Patch

diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index fe45b0c3970c..67f1e275b34d 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -143,9 +143,6 @@  xfs_trans_mod_dquot_byino(
 	    xfs_is_quota_inode(&mp->m_sb, ip->i_ino))
 		return;
 
-	if (tp->t_dqinfo == NULL)
-		xfs_trans_alloc_dqinfo(tp);
-
 	if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot)
 		(void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
 	if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot)
@@ -698,7 +695,6 @@  xfs_trans_dqresv(
 	 * because we don't have the luxury of a transaction envelope then.
 	 */
 	if (tp) {
-		ASSERT(tp->t_dqinfo);
 		ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
 		if (nblks != 0)
 			xfs_trans_mod_dquot(tp, dqp,
@@ -752,9 +748,6 @@  xfs_trans_reserve_quota_bydquots(
 	if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
 		return 0;
 
-	if (tp && tp->t_dqinfo == NULL)
-		xfs_trans_alloc_dqinfo(tp);
-
 	ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
 
 	if (udqp) {