Each layout segment already holds a reference to the pnfs_layout_hdr,
so there is no need to hold an extra reference that is released once
the last layout segment is freed.
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
fs/nfs/pnfs.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 142d0f4..767c748 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -306,11 +306,8 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo,
WARN_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags));
list_del_init(&lseg->pls_list);
- if (list_empty(&lo->plh_segs)) {
+ if (list_empty(&lo->plh_segs))
set_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags);
- /* Matched by initial refcount set in alloc_init_layout_hdr */
- pnfs_put_layout_hdr_locked(lo);
- }
rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq);
}
@@ -443,8 +440,7 @@ pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
dprintk("%s:Begin lo %p\n", __func__, lo);
if (list_empty(&lo->plh_segs)) {
- if (!test_and_set_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags))
- pnfs_put_layout_hdr_locked(lo);
+ set_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags);
return 0;
}
list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list)
@@ -1102,7 +1098,6 @@ pnfs_update_layout(struct inode *ino,
goto out_unlock;
atomic_inc(&lo->plh_outstanding);
- pnfs_get_layout_hdr(lo);
if (list_empty(&lo->plh_segs))
first = true;
--
1.7.11.4
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