From 04a58620a17cb14fa20c6e536e03eb27f9af6bc9 Mon Sep 17 00:00:00 2001 From: Kaixu Xia Date: Thu, 3 Dec 2020 16:41:21 -0800 Subject: [PATCH] xfs: check tp->t_dqinfo value instead of the XFS_TRANS_DQ_DIRTY flag Nowadays the only things that the XFS_TRANS_DQ_DIRTY flag seems to do are indicates the tp->t_dqinfo->dqs[XFS_QM_TRANS_{USR,GRP,PRJ}] values changed and check in xfs_trans_apply_dquot_deltas() and the unreserve variant xfs_trans_unreserve_and_mod_dquots(). Actually, we also can use the tp->t_dqinfo value instead of the XFS_TRANS_DQ_DIRTY flag, that is to say, we allocate the new tp->t_dqinfo only when the qtrx values changed, so the tp->t_dqinfo value isn't NULL equals the XFS_TRANS_DQ_DIRTY flag is set, we only need to check if tp->t_dqinfo == NULL in xfs_trans_apply_dquot_deltas() and its unreserve variant to determine whether lock all of the dquots and join them to the transaction. Signed-off-by: Kaixu Xia Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_shared.h | 1 - fs/xfs/xfs_inode.c | 8 +------- fs/xfs/xfs_trans_dquot.c | 13 ++----------- 3 files changed, 3 insertions(+), 19 deletions(-) diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h index c795ae47b3c9..8c61a461bf7b 100644 --- a/fs/xfs/libxfs/xfs_shared.h +++ b/fs/xfs/libxfs/xfs_shared.h @@ -62,7 +62,6 @@ void xfs_log_get_max_trans_res(struct xfs_mount *mp, #define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */ #define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */ #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */ -#define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */ #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */ #define XFS_TRANS_NO_WRITECOUNT 0x40 /* do not elevate SB writecount */ #define XFS_TRANS_RES_FDBLKS 0x80 /* reserve newly freed blocks */ diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 004fce3646ae..034fe0adae05 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -959,7 +959,6 @@ xfs_dir_ialloc( xfs_buf_t *ialloc_context = NULL; int code; void *dqinfo; - uint tflags; tp = *tpp; ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES); @@ -1018,12 +1017,9 @@ xfs_dir_ialloc( * and attach it to the next transaction. */ dqinfo = NULL; - tflags = 0; if (tp->t_dqinfo) { dqinfo = (void *)tp->t_dqinfo; tp->t_dqinfo = NULL; - tflags = tp->t_flags & XFS_TRANS_DQ_DIRTY; - tp->t_flags &= ~(XFS_TRANS_DQ_DIRTY); } code = xfs_trans_roll(&tp); @@ -1031,10 +1027,8 @@ xfs_dir_ialloc( /* * Re-attach the quota info that we detached from prev trx. */ - if (dqinfo) { + if (dqinfo) tp->t_dqinfo = dqinfo; - tp->t_flags |= tflags; - } if (code) { xfs_buf_relse(ialloc_context); diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index 67f1e275b34d..0ebfd7930382 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -84,13 +84,6 @@ xfs_trans_dup_dqinfo( xfs_trans_alloc_dqinfo(ntp); - /* - * Because the quota blk reservation is carried forward, - * it is also necessary to carry forward the DQ_DIRTY flag. - */ - if (otp->t_flags & XFS_TRANS_DQ_DIRTY) - ntp->t_flags |= XFS_TRANS_DQ_DIRTY; - for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { oqa = otp->t_dqinfo->dqs[j]; nqa = ntp->t_dqinfo->dqs[j]; @@ -270,8 +263,6 @@ xfs_trans_mod_dquot( if (delta) trace_xfs_trans_mod_dquot_after(qtrx); - - tp->t_flags |= XFS_TRANS_DQ_DIRTY; } @@ -348,7 +339,7 @@ xfs_trans_apply_dquot_deltas( int64_t totalbdelta; int64_t totalrtbdelta; - if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) + if (!tp->t_dqinfo) return; ASSERT(tp->t_dqinfo); @@ -490,7 +481,7 @@ xfs_trans_unreserve_and_mod_dquots( struct xfs_dqtrx *qtrx, *qa; bool locked; - if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) + if (!tp->t_dqinfo) return; for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) {