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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Steve French <stfrench@microsoft.com>,
	Oleg Kravtsov <oleg@tuxera.com>,
	Ronnie Sahlberg <lsahlber@redhat.com>,
	Pavel Shilovsky <pshilov@microsoft.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-cifs@vger.kernel.org, samba-technical@lists.samba.org
Subject: [PATCH AUTOSEL 5.5 537/542] cifs: log warning message (once) if out of disk space
Date: Fri, 14 Feb 2020 10:48:49 -0500
Message-ID: <20200214154854.6746-537-sashal@kernel.org> (raw)
In-Reply-To: <20200214154854.6746-1-sashal@kernel.org>

From: Steve French <stfrench@microsoft.com>

[ Upstream commit d6fd41905ec577851734623fb905b1763801f5ef ]

We ran into a confusing problem where an application wasn't checking
return code on close and so user didn't realize that the application
ran out of disk space.  log a warning message (once) in these
cases. For example:

  [ 8407.391909] Out of space writing to \\oleg-server\small-share

Signed-off-by: Steve French <stfrench@microsoft.com>
Reported-by: Oleg Kravtsov <oleg@tuxera.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/smb2pdu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 0a3b37abc5e12..6c9497c18f0b8 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -4029,6 +4029,9 @@ smb2_writev_callback(struct mid_q_entry *mid)
 				     wdata->cfile->fid.persistent_fid,
 				     tcon->tid, tcon->ses->Suid, wdata->offset,
 				     wdata->bytes, wdata->result);
+		if (wdata->result == -ENOSPC)
+			printk_once(KERN_WARNING "Out of space writing to %s\n",
+				    tcon->treeName);
 	} else
 		trace_smb3_write_done(0 /* no xid */,
 				      wdata->cfile->fid.persistent_fid,
-- 
2.20.1


      parent reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200214154854.6746-1-sashal@kernel.org>
2020-02-14 15:47 ` [PATCH AUTOSEL 5.5 478/542] cifs: fix unitialized variable poential problem with network I/O cache lock patch Sasha Levin
2020-02-14 15:47 ` [PATCH AUTOSEL 5.5 479/542] cifs: Fix mount options set in automount Sasha Levin
2020-02-14 15:47 ` [PATCH AUTOSEL 5.5 480/542] cifs: fix NULL dereference in match_prepath Sasha Levin
2020-02-14 15:48 ` Sasha Levin [this message]

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