From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 12 Mar 2019 20:04:51 +0000 (-0400)
Subject: pNFS: Fix a typo in pnfs_update_layout
X-Git-Tag: v4.19.61~71
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f64ff5914f00f51882da9cdc269f067d7b82a774;p=platform%2Fkernel%2Flinux-rpi.git

pNFS: Fix a typo in pnfs_update_layout

commit 400417b05f3ec0531544ca5f94e64d838d8b8849 upstream.

We're supposed to wait for the outstanding layout count to go to zero,
but that got lost somehow.

Fixes: d03360aaf5cca ("pNFS: Ensure we return the error if someone...")
Reported-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 7d9a51e..1aa628c 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1866,7 +1866,7 @@ lookup_again:
 	    atomic_read(&lo->plh_outstanding) != 0) {
 		spin_unlock(&ino->i_lock);
 		lseg = ERR_PTR(wait_var_event_killable(&lo->plh_outstanding,
-					atomic_read(&lo->plh_outstanding)));
+					!atomic_read(&lo->plh_outstanding)));
 		if (IS_ERR(lseg) || !list_empty(&lo->plh_segs))
 			goto out_put_layout_hdr;
 		pnfs_put_layout_hdr(lo);