From: Steve French <stfrench@microsoft.com>
Date: Wed, 5 Feb 2020 16:52:11 -0600
Subject: [PATCH] cifs: log warning message (once) if out of disk space
Git-commit: d6fd41905ec577851734623fb905b1763801f5ef
References: bsc#1144333
Patch-mainline: v5.6-rc1
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>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
fs/cifs/smb2pdu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 7996d81230aa..1a732ff71de4 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,
--
2.25.1