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authorMiklos Szeredi <mszeredi@suse.cz>2014-07-23 17:15:30 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-08-07 22:40:09 +0400
commit7177a9c4b509eb357cc450256bc3cf39f1a1e639 (patch)
tree077ca807a8aea9b105ac5997e4cc99d4fdd3d0e9 /fs/namei.c
parent2577d92ebd28dd9b3dacdfad6dcd81be0d21bbdf (diff)
downloadlinux-7177a9c4b509eb357cc450256bc3cf39f1a1e639.tar.xz
fs: call rename2 if exists
Christoph Hellwig suggests: 1) make vfs_rename call ->rename2 if it exists instead of ->rename 2) switch all filesystems that you're adding NOREPLACE support for to use ->rename2 3) see how many ->rename instances we'll have left after a few iterations of 2. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 9eb787e5c167..0ff23cecb1bb 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -4075,7 +4075,7 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (error)
return error;
- if (!old_dir->i_op->rename)
+ if (!old_dir->i_op->rename && !old_dir->i_op->rename2)
return -EPERM;
if (flags && !old_dir->i_op->rename2)
@@ -4134,10 +4134,11 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (error)
goto out;
}
- if (!flags) {
+ if (!old_dir->i_op->rename2) {
error = old_dir->i_op->rename(old_dir, old_dentry,
new_dir, new_dentry);
} else {
+ WARN_ON(old_dir->i_op->rename != NULL);
error = old_dir->i_op->rename2(old_dir, old_dentry,
new_dir, new_dentry, flags);
}