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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-10-21 14:11:00 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-11-03 21:28:45 -0500 |
| commit | e0f07896affd27ec378857dd6fccad0a43e52d35 (patch) | |
| tree | 3c599da9f8cb6100d391da209cf6d8ab7617e232 /fs/nfs/delegation.c | |
| parent | f9e0cc9c97906ede17ca5cd56a7b170830f4369a (diff) | |
| download | lwn-e0f07896affd27ec378857dd6fccad0a43e52d35.tar.gz lwn-e0f07896affd27ec378857dd6fccad0a43e52d35.zip | |
NFSv4: Hold the delegation spinlock when updating the seqid
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/delegation.c')
| -rw-r--r-- | fs/nfs/delegation.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index e80419a63fb5..7ebeb57cb597 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -387,8 +387,10 @@ int nfs_inode_set_delegation(struct inode *inode, const struct cred *cred, /* Is this an update of the existing delegation? */ if (nfs4_stateid_match_other(&old_delegation->stateid, &delegation->stateid)) { + spin_lock(&old_delegation->lock); nfs_update_inplace_delegation(old_delegation, delegation); + spin_unlock(&old_delegation->lock); goto out; } /* |