From: Trond Myklebust <trondmy@gmail.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH 5/8] NFSv4: Avoid referencing the cred unnecessarily during NFSv4 I/O
Date: Mon, 10 Feb 2020 14:13:42 -0500 [thread overview]
Message-ID: <20200210191345.557460-6-trond.myklebust@hammerspace.com> (raw)
In-Reply-To: <20200210191345.557460-5-trond.myklebust@hammerspace.com>
Avoid unnecessary references to the cred when we have already referenced
it through the open context or the open owner.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
fs/nfs/nfs4proc.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 00fe674c8a49..47464fb419dc 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2346,7 +2346,7 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
.callback_ops = &nfs4_open_confirm_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF,
};
int status;
@@ -2511,7 +2511,7 @@ static int nfs4_run_open_task(struct nfs4_opendata *data,
.callback_ops = &nfs4_open_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF,
};
int status;
@@ -3651,7 +3651,7 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
.rpc_message = &msg,
.callback_ops = &nfs4_close_ops,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF,
};
int status = -ENOMEM;
@@ -6350,7 +6350,7 @@ static int _nfs4_proc_delegreturn(struct inode *inode, const struct cred *cred,
.rpc_client = server->client,
.rpc_message = &msg,
.callback_ops = &nfs4_delegreturn_ops,
- .flags = RPC_TASK_ASYNC | RPC_TASK_TIMEOUT,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF | RPC_TASK_TIMEOUT,
};
int status = 0;
@@ -6933,7 +6933,7 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
.rpc_message = &msg,
.callback_ops = &nfs4_lock_ops,
.workqueue = nfsiod_workqueue,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF,
};
int ret;
--
2.24.1
next prev parent reply other threads:[~2020-02-10 19:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 19:13 [PATCH 0/8] Reduce the refcount pressure of NFS on struct cred Trond Myklebust
2020-02-10 19:13 ` [PATCH 1/8] NFS: alloc_nfs_open_context() must use the file cred when available Trond Myklebust
2020-02-10 19:13 ` [PATCH 2/8] SUNRPC: Add a flag to avoid reference counts on credentials Trond Myklebust
2020-02-10 19:13 ` [PATCH 3/8] SUNRPC: Don't take a reference to the cred on synchronous tasks Trond Myklebust
2020-02-10 19:13 ` [PATCH 4/8] NFS: Assume cred is pinned by open context in I/O requests Trond Myklebust
2020-02-10 19:13 ` Trond Myklebust [this message]
2020-02-10 19:13 ` [PATCH 6/8] NFSv4: Avoid unnecessary credential references in layoutget Trond Myklebust
2020-02-10 19:13 ` [PATCH 7/8] NFS: Avoid referencing the cred twice in async rename/unlink Trond Myklebust
2020-02-10 19:13 ` [PATCH 8/8] NFS: Limit the size of the access cache by default Trond Myklebust
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200210191345.557460-6-trond.myklebust@hammerspace.com \
--to=trondmy@gmail.com \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.