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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-09-20 14:58:42 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-10-08 10:45:53 -0400 |
| commit | 4816fdadab9ff874ec1a4138dad43b636c7d220b (patch) | |
| tree | c00606037841cb80e621fa7c5072146952b754f5 | |
| parent | 516285ebe0efadc40b914a0e61a913a390604810 (diff) | |
| download | op-kernel-dev-4816fdadab9ff874ec1a4138dad43b636c7d220b.zip op-kernel-dev-4816fdadab9ff874ec1a4138dad43b636c7d220b.tar.gz | |
NFSv4: Don't use synchronous delegation recall in exception handling
The code needs to be able to work from inside an asynchronous context.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| -rw-r--r-- | fs/nfs/delegation.c | 6 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 8 |
2 files changed, 5 insertions, 9 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index be806ea..5166adc 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -721,14 +721,12 @@ int nfs_async_inode_return_delegation(struct inode *inode, struct nfs_client *clp = server->nfs_client; struct nfs_delegation *delegation; - filemap_flush(inode->i_mapping); - rcu_read_lock(); delegation = rcu_dereference(NFS_I(inode)->delegation); if (delegation == NULL) goto out_enoent; - - if (!clp->cl_mvops->match_stateid(&delegation->stateid, stateid)) + if (stateid != NULL && + !clp->cl_mvops->match_stateid(&delegation->stateid, stateid)) goto out_enoent; nfs_mark_return_delegation(server, delegation); rcu_read_unlock(); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index ae5cde6..2a155ec 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -362,11 +362,9 @@ static int nfs4_do_handle_exception(struct nfs_server *server, case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_BAD_STATEID: - if (inode && nfs4_have_delegation(inode, FMODE_READ)) { - nfs4_inode_return_delegation(inode); - exception->retry = 1; - return 0; - } + if (inode && nfs_async_inode_return_delegation(inode, + NULL) == 0) + goto wait_on_recovery; if (state == NULL) break; ret = nfs4_schedule_stateid_recovery(server, state); |
