From: Trond Myklebust <trond.myklebust@hammerspace.com>

Date: Thu, 21 Jan 2021 16:34:37 -0500

Subject: [PATCH] pNFS/NFSv4: Fix a layout segment leak in

 pnfs_layout_process()

Git-commit: 814b84971388cd5fb182f2e914265b3827758455

Patch-mainline: v5.11-rc6

References: git-fixes

If the server returns a new stateid that does not match the one in our

cache, then pnfs_layout_process() will leak the layout segments returned

by pnfs_mark_layout_stateid_invalid().

Fixes: 9888d837f3cf ("pNFS: Force a retry of LAYOUTGET if the stateid doesn't match our cache")

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

Acked-by: NeilBrown <neilb@suse.com>

---

 fs/nfs/pnfs.c |    1 +

 1 file changed, 1 insertion(+)

--- a/fs/nfs/pnfs.c

+++ b/fs/nfs/pnfs.c

@@ -2304,6 +2304,7 @@ out_forget:

 	spin_unlock(&ino->i_lock);

 	lseg->pls_layout = lo;

 	NFS_SERVER(ino)->pnfs_curr_ld->free_lseg(lseg);

+	pnfs_free_lseg_list(&free_me);

 	return ERR_PTR(-EAGAIN);

 }