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| author | Miklos Szeredi <mszeredi@suse.cz> | 2014-07-23 15:15:30 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-08-07 14:40:09 -0400 |
| commit | 7177a9c4b509eb357cc450256bc3cf39f1a1e639 (patch) | |
| tree | 077ca807a8aea9b105ac5997e4cc99d4fdd3d0e9 /fs/namei.c | |
| parent | 2577d92ebd28dd9b3dacdfad6dcd81be0d21bbdf (diff) | |
| download | op-kernel-dev-7177a9c4b509eb357cc450256bc3cf39f1a1e639.zip op-kernel-dev-7177a9c4b509eb357cc450256bc3cf39f1a1e639.tar.gz | |
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.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -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); } |
