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Diffstat (limited to 'fs/cifs/link.c')
-rw-r--r--fs/cifs/link.c76
1 files changed, 46 insertions, 30 deletions
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 09e4b3ae456..51dc2fb6e85 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -391,70 +391,86 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
{
int rc = -EACCES;
unsigned int xid;
- char *fromName = NULL;
- char *toName = NULL;
+ char *from_name = NULL;
+ char *to_name = NULL;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct tcon_link *tlink;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
+ struct TCP_Server_Info *server;
struct cifsInodeInfo *cifsInode;
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink))
return PTR_ERR(tlink);
- pTcon = tlink_tcon(tlink);
+ tcon = tlink_tcon(tlink);
xid = get_xid();
- fromName = build_path_from_dentry(old_file);
- toName = build_path_from_dentry(direntry);
- if ((fromName == NULL) || (toName == NULL)) {
+ from_name = build_path_from_dentry(old_file);
+ to_name = build_path_from_dentry(direntry);
+ if ((from_name == NULL) || (to_name == NULL)) {
rc = -ENOMEM;
goto cifs_hl_exit;
}
- if (pTcon->unix_ext)
- rc = CIFSUnixCreateHardLink(xid, pTcon, fromName, toName,
+ if (tcon->unix_ext)
+ rc = CIFSUnixCreateHardLink(xid, tcon, from_name, to_name,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
else {
- rc = CIFSCreateHardLink(xid, pTcon, fromName, toName,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ server = tcon->ses->server;
+ if (!server->ops->create_hardlink)
+ return -ENOSYS;
+ rc = server->ops->create_hardlink(xid, tcon, from_name, to_name,
+ cifs_sb);
if ((rc == -EIO) || (rc == -EINVAL))
rc = -EOPNOTSUPP;
}
d_drop(direntry); /* force new lookup from server of target */
- /* if source file is cached (oplocked) revalidate will not go to server
- until the file is closed or oplock broken so update nlinks locally */
+ /*
+ * if source file is cached (oplocked) revalidate will not go to server
+ * until the file is closed or oplock broken so update nlinks locally
+ */
if (old_file->d_inode) {
cifsInode = CIFS_I(old_file->d_inode);
if (rc == 0) {
+ spin_lock(&old_file->d_inode->i_lock);
inc_nlink(old_file->d_inode);
-/* BB should we make this contingent on superblock flag NOATIME? */
-/* old_file->d_inode->i_ctime = CURRENT_TIME;*/
- /* parent dir timestamps will update from srv
- within a second, would it really be worth it
- to set the parent dir cifs inode time to zero
- to force revalidate (faster) for it too? */
+ spin_unlock(&old_file->d_inode->i_lock);
+ /*
+ * BB should we make this contingent on superblock flag
+ * NOATIME?
+ */
+ /* old_file->d_inode->i_ctime = CURRENT_TIME; */
+ /*
+ * parent dir timestamps will update from srv within a
+ * second, would it really be worth it to set the parent
+ * dir cifs inode time to zero to force revalidate
+ * (faster) for it too?
+ */
}
- /* if not oplocked will force revalidate to get info
- on source file from srv */
+ /*
+ * if not oplocked will force revalidate to get info on source
+ * file from srv
+ */
cifsInode->time = 0;
- /* Will update parent dir timestamps from srv within a second.
- Would it really be worth it to set the parent dir (cifs
- inode) time field to zero to force revalidate on parent
- directory faster ie
- CIFS_I(inode)->time = 0; */
+ /*
+ * Will update parent dir timestamps from srv within a second.
+ * Would it really be worth it to set the parent dir (cifs
+ * inode) time field to zero to force revalidate on parent
+ * directory faster ie
+ *
+ * CIFS_I(inode)->time = 0;
+ */
}
cifs_hl_exit:
- kfree(fromName);
- kfree(toName);
+ kfree(from_name);
+ kfree(to_name);
free_xid(xid);
cifs_put_tlink(tlink);
return rc;