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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-09-22 13:39:07 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-09-27 14:34:35 -0400
commit6c2d8f8d307033a7cdfee3f4cb9dc4679ab69513 (patch)
tree69e13b6c7c190ce1640038ff8035d76e78c7c5bc /fs/nfs/delegation.c
parentNFSv4: Ensure we don't re-test revoked and freed stateids (diff)
downloadlinux-dev-6c2d8f8d307033a7cdfee3f4cb9dc4679ab69513.tar.xz
linux-dev-6c2d8f8d307033a7cdfee3f4cb9dc4679ab69513.zip
NFSv4: nfs_inode_find_state_and_recover() should check all stateids
Modify the helper nfs_inode_find_state_and_recover() so that it can check all open/lock/delegation state trackers on that inode for whether or not they need are affected by a revoked stateid error. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Tested-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/delegation.c')
-rw-r--r--fs/nfs/delegation.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 484f14700108..5de4cfb2ab07 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -1001,6 +1001,25 @@ restart:
rcu_read_unlock();
}
+void nfs_inode_find_delegation_state_and_recover(struct inode *inode,
+ const nfs4_stateid *stateid)
+{
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
+ struct nfs_delegation *delegation;
+ bool found = false;
+
+ rcu_read_lock();
+ delegation = rcu_dereference(NFS_I(inode)->delegation);
+ if (delegation &&
+ nfs4_stateid_match_other(&delegation->stateid, stateid)) {
+ nfs_mark_test_expired_delegation(NFS_SERVER(inode), delegation);
+ found = true;
+ }
+ rcu_read_unlock();
+ if (found)
+ nfs4_schedule_state_manager(clp);
+}
+
/**
* nfs_delegations_present - check for existence of delegations
* @clp: client state handle