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From: Olga Kornievskaia <olga.kornievskaia@gmail.com>
To: trond.myklebust@hammerspace.com, anna.schumaker@netapp.com,
	viro@zeniv.linux.org.uk, smfrench@gmail.com, miklos@szeredi.hu
Cc: linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org,
	linux-man@vger.kernel.org
Subject: [PATCH v3 11/11] NFS replace cross device with cross filesystem check in copy_file_range
Date: Thu, 25 Oct 2018 17:51:47 -0400	[thread overview]
Message-ID: <20181025215147.36248-13-olga.kornievskaia@gmail.com> (raw)
In-Reply-To: <20181025215147.36248-1-olga.kornievskaia@gmail.com>

From: Olga Kornievskaia <kolga@netapp.com>

VFS copy_file_range was relaxed to allow for cross-device copy.
NFS code was added to support for server to server copy offload.
Add a check to disallow cross file systems copy offload, both
files are expected to be of NFS type.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
---
 fs/nfs/nfs4file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 4f142db..aab3720 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -139,7 +139,7 @@ static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
 	nfs4_stateid *cnrs = NULL;
 	ssize_t ret;
 
-	if (file_in->f_inode->i_sb != file_out->f_inode->i_sb)
+	if (file_in->f_inode->i_sb->s_type != file_out->f_inode->i_sb->s_type)
 		return -EXDEV;
 
 	if (file_inode(file_in) == file_inode(file_out))
-- 
1.8.3.1

  parent reply	other threads:[~2018-10-25 21:51 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-25 21:51 [PATCH v3 00/11] client-side support for "inter" SSC copy Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 01/11] VFS move cross device copy_file_range() check into filesystems Olga Kornievskaia
2018-10-25 22:17   ` Matthew Wilcox
2018-10-25 22:52     ` Olga Kornievskaia
2018-10-25 21:51 ` [PATCH 1/1] man-page: copy_file_range(2) allow for cross-device copies Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 02/11] VFS copy_file_range check validity of input source offset Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 03/11] NFS NFSD defining nl4_servers structure needed by both Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 04/11] NFS add COPY_NOTIFY operation Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 05/11] NFS add ca_source_server<> to COPY Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 06/11] NFS also send OFFLOAD_CANCEL to source server Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 07/11] NFS inter ssc open Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 08/11] NFS skip recovery of copy open on dest server Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 09/11] NFS for "inter" copy treat ESTALE as ENOTSUPP Olga Kornievskaia
2018-10-25 21:51 ` [PATCH v3 10/11] NFS COPY handle ERR_OFFLOAD_DENIED Olga Kornievskaia
2018-10-25 21:51 ` Olga Kornievskaia [this message]
2018-10-25 22:27   ` [PATCH v3 11/11] NFS replace cross device with cross filesystem check in copy_file_range Matthew Wilcox
2018-10-26 12:45     ` Olga Kornievskaia
2018-10-26 12:54       ` Matthew Wilcox

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