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authorOlga Kornievskaia <kolga@netapp.com>2018-10-04 21:45:00 +0300
committerTrond Myklebust <trond.myklebust@hammerspace.com>2018-10-05 16:34:36 +0300
commit44f411c353bf6d98d5a34f8f1b8605d43b2e50b8 (patch)
tree6e6d91e3889f499a038e9ad46716cccd9eeb49b3 /fs/nfs
parent21924765862a0871908a35cb0e53e2e1c169b888 (diff)
downloadlinux-44f411c353bf6d98d5a34f8f1b8605d43b2e50b8.tar.xz
NFSv4.x: fix lock recovery during delegation recall
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>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/delegation.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 76d205d1c7bc..07b839560576 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);
@@ -156,7 +156,7 @@ again:
seq = raw_seqcount_begin(&sp->so_reclaim_seqcount);
err = nfs4_open_delegation_recall(ctx, state, stateid, type);
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);