Commit 566f8737 authored by Peng Tao's avatar Peng Tao Committed by Tom Haynes

nfs41: add a debug warning if we destroy an unempty layout

So that we can detect the case if some layout segments are still
pinned which is surely a bug that we need to fix.
Signed-off-by: default avatarPeng Tao <tao.peng@primarydata.com>
parent 80c76fe3
...@@ -242,6 +242,8 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo) ...@@ -242,6 +242,8 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
struct inode *inode = lo->plh_inode; struct inode *inode = lo->plh_inode;
if (atomic_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) { if (atomic_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) {
if (!list_empty(&lo->plh_segs))
WARN_ONCE(1, "NFS: BUG unfreed layout segments.\n");
pnfs_detach_layout_hdr(lo); pnfs_detach_layout_hdr(lo);
spin_unlock(&inode->i_lock); spin_unlock(&inode->i_lock);
pnfs_free_layout_hdr(lo); pnfs_free_layout_hdr(lo);
......
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