diff options
| author | Brian Foster <bfoster@redhat.com> | 2018-07-12 07:26:20 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-07-12 07:26:20 +0200 |
| commit | bba59c5e4b38e160c6be25b2f4fe36ebc84f53df (patch) | |
| tree | cdf16ceb3bf16bbc31b104d010ca714bd529afd1 | |
| parent | xfs: allow null firstblock in xfs_bmapi_write() when tp is null (diff) | |
| download | linux-bba59c5e4b38e160c6be25b2f4fe36ebc84f53df.tar.xz linux-bba59c5e4b38e160c6be25b2f4fe36ebc84f53df.zip | |
xfs: add firstblock field to xfs_trans
A firstblock var is typically allocated and initialized along with
xfs_defer_ops structures and passed around independent from the
associated transaction. To facilitate combining the two, add an
optional ->t_firstblock field to xfs_trans that can be used in place
of an on-stack variable.
The firstblock value follows the lifetime of the transaction, so
initialize it on allocation and when a transaction rolls.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
| -rw-r--r-- | fs/xfs/xfs_trans.c | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 630993387517..de00f79ff698 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -100,6 +100,7 @@ xfs_trans_dup( ntp->t_mountp = tp->t_mountp; INIT_LIST_HEAD(&ntp->t_items); INIT_LIST_HEAD(&ntp->t_busy); + ntp->t_firstblock = NULLFSBLOCK; ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES); ASSERT(tp->t_ticket != NULL); @@ -273,6 +274,7 @@ xfs_trans_alloc( tp->t_mountp = mp; INIT_LIST_HEAD(&tp->t_items); INIT_LIST_HEAD(&tp->t_busy); + tp->t_firstblock = NULLFSBLOCK; error = xfs_trans_reserve(tp, resp, blocks, rtextents); if (error) { diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index d8a695c57103..37fdacc690c7 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -102,6 +102,7 @@ typedef struct xfs_trans { unsigned int t_blk_res_used; /* # of resvd blocks used */ unsigned int t_rtx_res; /* # of rt extents resvd */ unsigned int t_rtx_res_used; /* # of resvd rt extents used */ + xfs_fsblock_t t_firstblock; /* first block allocated */ struct xlog_ticket *t_ticket; /* log mgr ticket */ struct xfs_mount *t_mountp; /* ptr to fs mount struct */ struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */ |