From: Olga Kornievskaia kolga@netapp.com
[ Upstream commit 44f411c353bf6d98d5a34f8f1b8605d43b2e50b8 ]
Running "./nfstest_delegation --runtest recall26" uncovers that client doesn't recover the lock when we have an appending open, where the initial open got a write delegation.
Instead of checking for the passed in open context against the file lock's open context. Check that the state is the same.
Signed-off-by: Olga Kornievskaia kolga@netapp.com Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfs/delegation.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 825a8c52165a2..bd8eac752a73a 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -93,7 +93,7 @@ int nfs4_check_delegation(struct inode *inode, fmode_t flags) return nfs4_do_check_delegation(inode, flags, false); }
-static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid) +static int nfs_delegation_claim_locks(struct nfs4_state *state, const nfs4_stateid *stateid) { struct inode *inode = state->inode; struct file_lock *fl; @@ -108,7 +108,7 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_ spin_lock(&flctx->flc_lock); restart: list_for_each_entry(fl, list, fl_list) { - if (nfs_file_open_context(fl->fl_file) != ctx) + if (nfs_file_open_context(fl->fl_file)->state != state) continue; spin_unlock(&flctx->flc_lock); status = nfs4_lock_delegation_recall(fl, state, stateid); @@ -155,7 +155,7 @@ static int nfs_delegation_claim_opens(struct inode *inode, seq = raw_seqcount_begin(&sp->so_reclaim_seqcount); err = nfs4_open_delegation_recall(ctx, state, stateid); if (!err) - err = nfs_delegation_claim_locks(ctx, state, stateid); + err = nfs_delegation_claim_locks(state, stateid); if (!err && read_seqcount_retry(&sp->so_reclaim_seqcount, seq)) err = -EAGAIN; mutex_unlock(&sp->so_delegreturn_mutex);