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authorMiklos Szeredi <mszeredi@redhat.com>2016-09-27 11:03:58 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2016-09-27 11:03:58 +0200
commit1cd66c93ba8cdb873258f58ae6a817b28a02bcc3 (patch)
treef9a1f49b000c9959c5b278eae175b996ade3a7cd /fs/ceph/dir.c
parente0e0be8a835520e2f7c89f214dfda570922a1b90 (diff)
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fs: make remaining filesystems use .rename2
This is trivial to do: - add flags argument to foo_rename() - check if flags is zero - assign foo_rename() to .rename2 instead of .rename This doesn't mean it's impossible to support RENAME_NOREPLACE for these filesystems, but it is not trivial, like for local filesystems. RENAME_NOREPLACE must guarantee atomicity (i.e. it shouldn't be possible for a file to be created on one host while it is overwritten by rename on another host). Filesystems converted: 9p, afs, ceph, coda, ecryptfs, kernfs, lustre, ncpfs, nfs, ocfs2, orangefs. After this, we can get rid of the duplicate interfaces for rename. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: David Howells <dhowells@redhat.com> [AFS] Acked-by: Mike Marshall <hubcap@omnibond.com> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ilya Dryomov <idryomov@gmail.com> Cc: Jan Harkes <jaharkes@cs.cmu.edu> Cc: Tyler Hicks <tyhicks@canonical.com> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: Trond Myklebust <trond.myklebust@primarydata.com> Cc: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ceph/dir.c')
-rw-r--r--fs/ceph/dir.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index df4b3e6fa563..cef8252af38a 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1061,7 +1061,8 @@ out:
}
static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+ struct inode *new_dir, struct dentry *new_dentry,
+ unsigned int flags)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(old_dir->i_sb);
struct ceph_mds_client *mdsc = fsc->mdsc;
@@ -1069,6 +1070,9 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
int op = CEPH_MDS_OP_RENAME;
int err;
+ if (flags)
+ return -EINVAL;
+
if (ceph_snap(old_dir) != ceph_snap(new_dir))
return -EXDEV;
if (ceph_snap(old_dir) != CEPH_NOSNAP) {
@@ -1498,7 +1502,7 @@ const struct inode_operations ceph_dir_iops = {
.link = ceph_link,
.unlink = ceph_unlink,
.rmdir = ceph_unlink,
- .rename = ceph_rename,
+ .rename2 = ceph_rename,
.create = ceph_create,
.atomic_open = ceph_atomic_open,
};
@@ -1509,7 +1513,7 @@ const struct inode_operations ceph_snapdir_iops = {
.getattr = ceph_getattr,
.mkdir = ceph_mkdir,
.rmdir = ceph_unlink,
- .rename = ceph_rename,
+ .rename2 = ceph_rename,
};
const struct dentry_operations ceph_dentry_ops = {