diff options
| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2025-03-27 19:20:53 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2025-03-28 16:38:05 -0400 |
| commit | 9e8f324bd44c1fe026b582b75213de4eccfa1163 (patch) | |
| tree | 80a86d3efc546c1843a35c37aa6d718d986dd1e1 | |
| parent | 8d3ca331026a7f9700d3747eed59a67b8f828cdc (diff) | |
NFSv4: Check for delegation validity in nfs_start_delegation_return_locked()
Check that the delegation is still attached after taking the spin lock
in nfs_start_delegation_return_locked().
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
| -rw-r--r-- | fs/nfs/delegation.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 325ba0663a6d..8bdbc4dca89c 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -307,7 +307,8 @@ nfs_start_delegation_return_locked(struct nfs_inode *nfsi) if (delegation == NULL) goto out; spin_lock(&delegation->lock); - if (!test_and_set_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) { + if (delegation->inode && + !test_and_set_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) { clear_bit(NFS_DELEGATION_RETURN_DELAYED, &delegation->flags); /* Refcount matched in nfs_end_delegation_return() */ ret = nfs_get_delegation(delegation); |