From 8f70f53a87007bdbb34c79d11178a153914f5db1 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 4 Aug 2015 16:09:44 -0400 Subject: [PATCH] NFSv4.1/pnfs: Fix serialisation of layout return and layoutget We should always test for outstanding layout returns, whether or not pnfs_should_retry_layoutget() is true. Signed-off-by: Trond Myklebust --- fs/nfs/pnfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 8855b322d127..e3a47ee15474 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1436,6 +1436,8 @@ static int pnfs_layoutget_retry_bit_wait(struct wait_bit_key *key) static bool pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo) { + if (!pnfs_should_retry_layoutget(lo)) + return false; /* * send layoutcommit as it can hold up layoutreturn due to lseg * reference @@ -1531,8 +1533,7 @@ lookup_again: * Because we free lsegs before sending LAYOUTRETURN, we need to wait * for LAYOUTRETURN even if first is true. */ - if (!lseg && pnfs_should_retry_layoutget(lo) && - test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { + if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { spin_unlock(&ino->i_lock); dprintk("%s wait for layoutreturn\n", __func__); if (pnfs_prepare_to_retry_layoutget(lo)) {