@@ -67,6 +67,9 @@ xfs_trans_free(
xfs_extent_busy_sort(&tp->t_busy);
xfs_extent_busy_clear(tp->t_mountp, &tp->t_busy, false);
+ /* Detach the transaction from this thread. */
+ xfs_trans_context_clear(tp);
+
trace_xfs_trans_free(tp, _RET_IP_);
if (!(tp->t_flags & XFS_TRANS_NO_WRITECOUNT))
sb_end_intwrite(tp->t_mountp->m_super);
@@ -153,9 +156,6 @@ xfs_trans_reserve(
int error = 0;
bool rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
- /* Mark this thread as being in a transaction */
- xfs_trans_context_set(tp);
-
/*
* Attempt to reserve the needed disk blocks by decrementing
* the number needed from the number available. This will
@@ -163,10 +163,9 @@ xfs_trans_reserve(
*/
if (blocks > 0) {
error = xfs_mod_fdblocks(mp, -((int64_t)blocks), rsvd);
- if (error != 0) {
- xfs_trans_context_clear(tp);
+ if (error != 0)
return -ENOSPC;
- }
+
tp->t_blk_res += blocks;
}
@@ -241,8 +240,6 @@ xfs_trans_reserve(
tp->t_blk_res = 0;
}
- xfs_trans_context_clear(tp);
-
return error;
}
@@ -284,6 +281,8 @@ xfs_trans_alloc(
INIT_LIST_HEAD(&tp->t_dfops);
tp->t_firstblock = NULLFSBLOCK;
+ /* Mark this thread as being in a transaction */
+ xfs_trans_context_set(tp);
error = xfs_trans_reserve(tp, resp, blocks, rtextents);
if (error) {
xfs_trans_cancel(tp);
@@ -878,7 +877,6 @@ __xfs_trans_commit(
xfs_log_commit_cil(mp, tp, &commit_lsn, regrant);
- xfs_trans_context_clear(tp);
xfs_trans_free(tp);
/*
@@ -911,7 +909,6 @@ __xfs_trans_commit(
tp->t_ticket = NULL;
}
- xfs_trans_context_clear(tp);
xfs_trans_free_items(tp, !!error);
xfs_trans_free(tp);
@@ -971,9 +968,6 @@ xfs_trans_cancel(
tp->t_ticket = NULL;
}
- /* mark this thread as no longer being in a transaction */
- xfs_trans_context_clear(tp);
-
xfs_trans_free_items(tp, dirty);
xfs_trans_free(tp);
}
The xfs_trans context should be active after it is allocated, and deactive when it is freed. So these two helpers are refactored as, - xfs_trans_context_set() Used in xfs_trans_alloc() - xfs_trans_context_clear() Used in xfs_trans_free() This patch is based on Darrick's work to fix the issue in xfs/141 in the earlier version. [1] 1. https://lore.kernel.org/linux-xfs/20201104001649.GN7123@magnolia Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> --- fs/xfs/xfs_trans.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-)