xfs: simplify inode to transaction joining
Currently we need to either call IHOLD or xfs_trans_ihold on an inode when
joining it to a transaction via xfs_trans_ijoin.
This patches instead makes xfs_trans_ijoin usable on it's own by doing
an implicity xfs_trans_ihold, which also allows us to drop the third
argument. For the case where we want to hold a reference on the inode
a xfs_trans_ijoin_ref wrapper is added which does the IHOLD and marks
the inode for needing an xfs_iput. In addition to the cleaner interface
to the caller this also simplifies the implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index c7e70d7..ad050c6 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -628,19 +628,10 @@
{
struct xfs_inode_log_item *iip = INODE_ITEM(lip);
struct xfs_inode *ip = iip->ili_inode;
- uint hold;
- uint iolocked;
- uint lock_flags;
+ unsigned short lock_flags;
- ASSERT(iip != NULL);
ASSERT(iip->ili_inode->i_itemp != NULL);
ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
- ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
- XFS_ILI_IOLOCKED_EXCL)) ||
- xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL));
- ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
- XFS_ILI_IOLOCKED_SHARED)) ||
- xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED));
/*
* Clear the transaction pointer in the inode.
@@ -668,35 +659,10 @@
iip->ili_aextents_buf = NULL;
}
- /*
- * Figure out if we should unlock the inode or not.
- */
- hold = iip->ili_flags & XFS_ILI_HOLD;
-
- /*
- * Before clearing out the flags, remember whether we
- * are holding the inode's IO lock.
- */
- iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY;
-
- /*
- * Clear out the fields of the inode log item particular
- * to the current transaction.
- */
- iip->ili_flags = 0;
-
- /*
- * Unlock the inode if XFS_ILI_HOLD was not set.
- */
- if (!hold) {
- lock_flags = XFS_ILOCK_EXCL;
- if (iolocked & XFS_ILI_IOLOCKED_EXCL) {
- lock_flags |= XFS_IOLOCK_EXCL;
- } else if (iolocked & XFS_ILI_IOLOCKED_SHARED) {
- lock_flags |= XFS_IOLOCK_SHARED;
- }
+ lock_flags = iip->ili_lock_flags;
+ iip->ili_lock_flags = 0;
+ if (lock_flags)
xfs_iput(iip->ili_inode, lock_flags);
- }
}
/*