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

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

fs/nfs/pnfs.c

+2 −0
Original line number Diff line number Diff line
@@ -242,6 +242,8 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo) 
	struct inode *inode = lo->plh_inode;



	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);

		spin_unlock(&inode->i_lock);

		pnfs_free_layout_hdr(lo);