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-rw-r--r--fs/cifs/inode.c92
1 files changed, 48 insertions, 44 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index c6f6b02cf3b5..2f3235f08c3f 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1512,29 +1512,32 @@ rmdir_exit:
}
static int
-cifs_do_rename(unsigned int xid, struct dentry *from_dentry,
- const char *fromPath, struct dentry *to_dentry,
- const char *toPath)
+cifs_do_rename(const unsigned int xid, struct dentry *from_dentry,
+ const char *from_path, struct dentry *to_dentry,
+ const char *to_path)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(from_dentry->d_sb);
struct tcon_link *tlink;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
+ struct TCP_Server_Info *server;
__u16 srcfid;
int oplock, rc;
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink))
return PTR_ERR(tlink);
- pTcon = tlink_tcon(tlink);
+ tcon = tlink_tcon(tlink);
+ server = tcon->ses->server;
+
+ if (!server->ops->rename)
+ return -ENOSYS;
/* try path-based rename first */
- rc = CIFSSMBRename(xid, pTcon, fromPath, toPath, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ rc = server->ops->rename(xid, tcon, from_path, to_path, cifs_sb);
/*
- * don't bother with rename by filehandle unless file is busy and
- * source Note that cross directory moves do not work with
+ * Don't bother with rename by filehandle unless file is busy and
+ * source. Note that cross directory moves do not work with
* rename by filehandle to various Windows servers.
*/
if (rc == 0 || rc != -ETXTBSY)
@@ -1545,29 +1548,28 @@ cifs_do_rename(unsigned int xid, struct dentry *from_dentry,
goto do_rename_exit;
/* open the file to be renamed -- we need DELETE perms */
- rc = CIFSSMBOpen(xid, pTcon, fromPath, FILE_OPEN, DELETE,
+ rc = CIFSSMBOpen(xid, tcon, from_path, FILE_OPEN, DELETE,
CREATE_NOT_DIR, &srcfid, &oplock, NULL,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
-
if (rc == 0) {
- rc = CIFSSMBRenameOpenFile(xid, pTcon, srcfid,
+ rc = CIFSSMBRenameOpenFile(xid, tcon, srcfid,
(const char *) to_dentry->d_name.name,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
-
- CIFSSMBClose(xid, pTcon, srcfid);
+ CIFSSMBClose(xid, tcon, srcfid);
}
do_rename_exit:
cifs_put_tlink(tlink);
return rc;
}
-int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
- struct inode *target_dir, struct dentry *target_dentry)
+int
+cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
+ struct inode *target_dir, struct dentry *target_dentry)
{
- char *fromName = NULL;
- char *toName = NULL;
+ char *from_name = NULL;
+ char *to_name = NULL;
struct cifs_sb_info *cifs_sb;
struct tcon_link *tlink;
struct cifs_tcon *tcon;
@@ -1588,25 +1590,25 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
* we already have the rename sem so we do not need to
* grab it again here to protect the path integrity
*/
- fromName = build_path_from_dentry(source_dentry);
- if (fromName == NULL) {
+ from_name = build_path_from_dentry(source_dentry);
+ if (from_name == NULL) {
rc = -ENOMEM;
goto cifs_rename_exit;
}
- toName = build_path_from_dentry(target_dentry);
- if (toName == NULL) {
+ to_name = build_path_from_dentry(target_dentry);
+ if (to_name == NULL) {
rc = -ENOMEM;
goto cifs_rename_exit;
}
- rc = cifs_do_rename(xid, source_dentry, fromName,
- target_dentry, toName);
+ rc = cifs_do_rename(xid, source_dentry, from_name, target_dentry,
+ to_name);
if (rc == -EEXIST && tcon->unix_ext) {
/*
- * Are src and dst hardlinks of same inode? We can
- * only tell with unix extensions enabled
+ * Are src and dst hardlinks of same inode? We can only tell
+ * with unix extensions enabled.
*/
info_buf_source =
kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO),
@@ -1617,19 +1619,19 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
}
info_buf_target = info_buf_source + 1;
- tmprc = CIFSSMBUnixQPathInfo(xid, tcon, fromName,
- info_buf_source,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ tmprc = CIFSSMBUnixQPathInfo(xid, tcon, from_name,
+ info_buf_source,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
if (tmprc != 0)
goto unlink_target;
- tmprc = CIFSSMBUnixQPathInfo(xid, tcon, toName,
- info_buf_target,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ tmprc = CIFSSMBUnixQPathInfo(xid, tcon, to_name,
+ info_buf_target,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
if (tmprc == 0 && (info_buf_source->UniqueId ==
info_buf_target->UniqueId)) {
@@ -1637,8 +1639,11 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
rc = 0;
goto cifs_rename_exit;
}
- } /* else ... BB we could add the same check for Windows by
- checking the UniqueId via FILE_INTERNAL_INFO */
+ }
+ /*
+ * else ... BB we could add the same check for Windows by
+ * checking the UniqueId via FILE_INTERNAL_INFO
+ */
unlink_target:
/* Try unlinking the target dentry if it's not negative */
@@ -1646,15 +1651,14 @@ unlink_target:
tmprc = cifs_unlink(target_dir, target_dentry);
if (tmprc)
goto cifs_rename_exit;
-
- rc = cifs_do_rename(xid, source_dentry, fromName,
- target_dentry, toName);
+ rc = cifs_do_rename(xid, source_dentry, from_name,
+ target_dentry, to_name);
}
cifs_rename_exit:
kfree(info_buf_source);
- kfree(fromName);
- kfree(toName);
+ kfree(from_name);
+ kfree(to_name);
free_xid(xid);
cifs_put_tlink(tlink);
return rc;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 19:01:44 +0100