linux-nfs.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Manjunath Patil <manjunath.b.patil@oracle.com>
To: linux-nfs@vger.kernel.org
Cc: manjunath.b.patil@oracle.com
Subject: [PATCH nfs-utils] mount: handle ENOSPC in nfs_autonegotiate()
Date: Thu, 21 Jun 2018 09:34:20 -0700	[thread overview]
Message-ID: <1529598860-1960-1-git-send-email-manjunath.b.patil@oracle.com> (raw)

The server may return NFS4ERR_NOSPC during NFSv4.1+ mount if there is a
memory pressure to allocate a DRC slot for session being created. In
such cases, try with lower nfs versions, which may succeed as DRC is
shared by clients.

Signed-off-by: Manjunath Patil <manjunath.b.patil@oracle.com>
---
 utils/mount/stropts.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
index d1b0708..7e97a88 100644
--- a/utils/mount/stropts.c
+++ b/utils/mount/stropts.c
@@ -881,6 +881,10 @@ check_result:
 	case EINVAL:
 		/* A less clear indication that our client
 		 * does not support NFSv4 minor version. */
+	case ENOSPC:
+		/* Server returned NFS4ERR_NOSPC for create session [NFSv4.1+].
+		 * Try with lower NFS versions which share DRC amoung clients and
+		 * hence low memory may be ok. */
 	case EACCES:
 		/* An unclear indication that the server
 		 * may not support NFSv4 minor version. */
-- 
1.8.3.1


             reply	other threads:[~2018-06-21 16:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-21 16:34 Manjunath Patil [this message]
2018-06-21 16:59 ` [PATCH nfs-utils] mount: handle ENOSPC in nfs_autonegotiate() Trond Myklebust
2018-06-25 15:32   ` Steve Dickson

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=1529598860-1960-1-git-send-email-manjunath.b.patil@oracle.com \
    --to=manjunath.b.patil@oracle.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).