[PATCH 17/29] xfs: make xfs_trans_ijoin() error out -EAGAIN

[Hao Xu]

From: Hao Xu <howeyxu at tencent.com>

Change return value of xfs_trans_ijoin() to error out -EAGAIN.

Signed-off-by: Hao Xu <howeyxu at tencent.com>
---
 fs/xfs/libxfs/xfs_trans_inode.c | 13 +++++++++----
 fs/xfs/xfs_iops.c               |  4 +++-
 fs/xfs/xfs_trans.h              |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_trans_inode.c b/fs/xfs/libxfs/xfs_trans_inode.c
index e7a8f63c8975..7bda62bad90a 100644
--- a/fs/xfs/libxfs/xfs_trans_inode.c
+++ b/fs/xfs/libxfs/xfs_trans_inode.c
@@ -23,7 +23,7 @@
  * The inode must be locked, and it cannot be associated with any transaction.
  * If lock_flags is non-zero the inode will be unlocked on transaction commit.
  */
-void
+int
 xfs_trans_ijoin(
 	struct xfs_trans	*tp,
 	struct xfs_inode	*ip,
@@ -32,9 +32,12 @@ xfs_trans_ijoin(
 	struct xfs_inode_log_item *iip;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-	if (ip->i_itemp == NULL)
-		xfs_inode_item_init(ip, ip->i_mount,
-				    tp->t_flags & XFS_TRANS_NOWAIT);
+	if (ip->i_itemp == NULL) {
+		int ret = xfs_inode_item_init(ip, ip->i_mount,
+					      tp->t_flags & XFS_TRANS_NOWAIT);
+		if (ret == -EAGAIN)
+			return ret;
+	}
 	iip = ip->i_itemp;
 
 	ASSERT(iip->ili_lock_flags == 0);
@@ -44,6 +47,8 @@ xfs_trans_ijoin(
 	/* Reset the per-tx dirty context and add the item to the tx. */
 	iip->ili_dirty_flags = 0;
 	xfs_trans_add_item(tp, &iip->ili_item);
+
+	return 0;
 }
 
 /*
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 47b4fd5f8f5c..034a8fea1f8e 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1075,7 +1075,9 @@ xfs_vn_update_time(
 	if (flags & S_ATIME)
 		inode->i_atime = *now;
 
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	error = xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	if (error)
+		goto out;
 	xfs_trans_log_inode(tp, ip, log_flags);
 	error = xfs_trans_commit(tp);
 
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 6e3646d524ce..f2c05884c4b6 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -226,7 +226,7 @@ bool		xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
 void		xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
 void		xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
 void		xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
-void		xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
+int		xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
 void		xfs_trans_log_buf(struct xfs_trans *, struct xfs_buf *, uint,
 				  uint);
 void		xfs_trans_dirty_buf(struct xfs_trans *, struct xfs_buf *);
-- 
2.25.1