diff options
Diffstat (limited to 'fs/nfs/delegation.c')
| -rw-r--r-- | fs/nfs/delegation.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 606dd3871f66..d8b47624fee2 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -12,6 +12,7 @@ #include <linux/sched.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/iversion.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> @@ -347,7 +348,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs4_stateid_copy(&delegation->stateid, &res->delegation); delegation->type = res->delegation_type; delegation->pagemod_limit = res->pagemod_limit; - delegation->change_attr = inode->i_version; + delegation->change_attr = inode_peek_iversion_raw(inode); delegation->cred = get_rpccred(cred); delegation->inode = inode; delegation->flags = 1<<NFS_DELEGATION_REFERENCED; @@ -1041,6 +1042,33 @@ int nfs_delegations_present(struct nfs_client *clp) } /** + * nfs4_refresh_delegation_stateid - Update delegation stateid seqid + * @dst: stateid to refresh + * @inode: inode to check + * + * Returns "true" and updates "dst->seqid" * if inode had a delegation + * that matches our delegation stateid. Otherwise "false" is returned. + */ +bool nfs4_refresh_delegation_stateid(nfs4_stateid *dst, struct inode *inode) +{ + struct nfs_delegation *delegation; + bool ret = false; + if (!inode) + goto out; + + rcu_read_lock(); + delegation = rcu_dereference(NFS_I(inode)->delegation); + if (delegation != NULL && + nfs4_stateid_match_other(dst, &delegation->stateid)) { + dst->seqid = delegation->stateid.seqid; + return ret; + } + rcu_read_unlock(); +out: + return ret; +} + +/** * nfs4_copy_delegation_stateid - Copy inode's state ID information * @inode: inode to check * @flags: delegation type requirement |