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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2018-04-09 11:15:30 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-05-31 15:02:16 -0400 |
| commit | 991eedb1371dc09b0f9848f59c8898fe63d198c0 (patch) | |
| tree | 70231a5bed710941ba15d27218bd5765085cbda4 | |
| parent | 2f261020b6ddfa49dc8f1017fdc53e56276ba8b1 (diff) | |
| download | linux-991eedb1371dc09b0f9848f59c8898fe63d198c0.tar.bz2 | |
NFSv4: Only pass the delegation to setattr if we're sending a truncate
Even then it isn't really necessary. The reason why we may not want to
pass in a stateid in other cases is that we cannot use the delegation
credential.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
| -rw-r--r-- | fs/nfs/nfs4proc.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 553cb8f98194..844eafbf1564 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3032,7 +3032,6 @@ static int _nfs4_do_setattr(struct inode *inode, }; struct rpc_cred *delegation_cred = NULL; unsigned long timestamp = jiffies; - fmode_t fmode; bool truncate; int status; @@ -3040,11 +3039,12 @@ static int _nfs4_do_setattr(struct inode *inode, /* Servers should only apply open mode checks for file size changes */ truncate = (arg->iap->ia_valid & ATTR_SIZE) ? true : false; - fmode = truncate ? FMODE_WRITE : FMODE_READ; + if (!truncate) + goto zero_stateid; - if (nfs4_copy_delegation_stateid(inode, fmode, &arg->stateid, &delegation_cred)) { + if (nfs4_copy_delegation_stateid(inode, FMODE_WRITE, &arg->stateid, &delegation_cred)) { /* Use that stateid */ - } else if (truncate && ctx != NULL) { + } else if (ctx != NULL) { struct nfs_lock_context *l_ctx; if (!nfs4_valid_open_stateid(ctx->state)) return -EBADF; @@ -3056,8 +3056,10 @@ static int _nfs4_do_setattr(struct inode *inode, nfs_put_lock_context(l_ctx); if (status == -EIO) return -EBADF; - } else + } else { +zero_stateid: nfs4_stateid_copy(&arg->stateid, &zero_stateid); + } if (delegation_cred) msg.rpc_cred = delegation_cred; |