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authorMiklos Szeredi <mszeredi@redhat.com>2016-09-27 12:03:58 +0300
committerMiklos Szeredi <mszeredi@redhat.com>2016-09-27 12:03:58 +0300
commit1cd66c93ba8cdb873258f58ae6a817b28a02bcc3 (patch)
treef9a1f49b000c9959c5b278eae175b996ade3a7cd /fs/ecryptfs/inode.c
parente0e0be8a835520e2f7c89f214dfda570922a1b90 (diff)
downloadlinux-1cd66c93ba8cdb873258f58ae6a817b28a02bcc3.tar.xz
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/ecryptfs/inode.c')
-rw-r--r--fs/ecryptfs/inode.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 9d153b6a1d72..f3ff7c4d384c 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -577,7 +577,8 @@ out:
static int
ecryptfs_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)
{
int rc;
struct dentry *lower_old_dentry;
@@ -587,6 +588,9 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct dentry *trap = NULL;
struct inode *target_inode;
+ if (flags)
+ return -EINVAL;
+
lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry);
lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry);
dget(lower_old_dentry);
@@ -1104,7 +1108,7 @@ const struct inode_operations ecryptfs_dir_iops = {
.mkdir = ecryptfs_mkdir,
.rmdir = ecryptfs_rmdir,
.mknod = ecryptfs_mknod,
- .rename = ecryptfs_rename,
+ .rename2 = ecryptfs_rename,
.permission = ecryptfs_permission,
.setattr = ecryptfs_setattr,
.setxattr = ecryptfs_setxattr,