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Fixed https://bugzilla.kernel.org/show_bug.cgi?id=202935 allow write on the same file 

Copychunk allows source and target to be on the same file.
For details on restrictions see MS-SMB2 3.3.5.15.6

Signed-off-by: Kovtunenko Oleksandr <alexander198961@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
hifive-unleashed-5.2
Kovtunenko Oleksandr 2019-05-14 05:52:34 +00:00 committed by Steve French
parent 2c87d6a94d
commit 9ab70ca653
1 changed files with 0 additions and 5 deletions
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5
fs/cifs/cifsfs.c
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@ -1070,11 +1070,6 @@ ssize_t cifs_file_copychunk_range(unsigned int xid,
cifs_dbg(FYI, "copychunk range\n");
if (src_inode == target_inode) {
rc = -EINVAL;
goto out;
}
if (!src_file->private_data || !dst_file->private_data) {
rc = -EBADF;
cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");