xfs: more sensible inode refcounting for ialloc

Currently we return iodes from xfs_ialloc with just a single reference held.
But we need two references, as one is dropped during transaction commit and
the second needs to be transfered to the VFS.  Change xfs_ialloc to use
xfs_iget plus xfs_trans_ijoin_ref to grab two references to the inode,
and remove the now superflous IHOLD calls from all callers.  This also
greatly simplifies the error handling in xfs_create and also allow to remove
xfs_trans_iget as no other callers are left.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 0 insertions, 22 deletions

diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index ccb3453..16084d8 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -44,28 +44,6 @@ xfs_trans_inode_broot_debug(
 #endif
 
 /*
- * Get an inode and join it to the transaction.
- */
-int
-xfs_trans_iget(
-	xfs_mount_t	*mp,
-	xfs_trans_t	*tp,
-	xfs_ino_t	ino,
-	uint		flags,
-	uint		lock_flags,
-	xfs_inode_t	**ipp)
-{
-	int			error;
-
-	error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp);
-	if (!error && tp) {
-		xfs_trans_ijoin(tp, *ipp);
-		(*ipp)->i_itemp->ili_lock_flags = lock_flags;
-	}
-	return error;
-}
-
-/*
  * Add a locked inode to the transaction.
  *
  * The inode must be locked, and it cannot be associated with any transaction.