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| author | Olga Kornievskaia <kolga@netapp.com> | 2019-07-02 15:11:48 -0400 |
|---|---|---|
| committer | Olga Kornievskaia <olga.kornievskaia@gmail.com> | 2019-10-09 12:06:26 -0400 |
| commit | 8dff1df551dffc29fa78771c8dda2f0b094003aa (patch) | |
| tree | 3f794a5c5314ee56bb9f16d4c9079d8866e80fcb /fs/nfs | |
| parent | 1275101026b48f43e194de074b11ab04fee8b89b (diff) | |
| download | linux-stable-8dff1df551dffc29fa78771c8dda2f0b094003aa.tar.gz linux-stable-8dff1df551dffc29fa78771c8dda2f0b094003aa.tar.bz2 linux-stable-8dff1df551dffc29fa78771c8dda2f0b094003aa.zip | |
NFS: replace cross device check in copy_file_range
Add a check to disallow cross file systems copy offload, both
files are expected to be of NFS4.2+ type.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 897832564923..e97813b15e23 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -141,7 +141,7 @@ static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in, bool sync = false; /* Only offload copy if superblock is the same */ - if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb) + if (file_in->f_op != &nfs4_file_operations) return -EXDEV; if (!nfs_server_capable(file_inode(file_out), NFS_CAP_COPY)) return -EOPNOTSUPP; |