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smb3: limit noisy error

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For servers which don't support copy_range (SMB3 CopyChunk), the
logging of:
 CIFS: VFS: \\server\share refcpy ioctl error -95 getting resume key
can fill the client logs and make debugging real problems more
difficult.  Change the -EOPNOTSUPP on copy_range to a "warn once"

Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2021-04-19 23:22:37 -05:00
parent 315db9a05b
commit 423333bcba
1 changed files with 4 additions and 1 deletions
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5
fs/cifs/smb2ops.c
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@ -1567,7 +1567,10 @@ SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
NULL, 0 /* no input */, CIFSMaxBufSize,
(char **)&res_key, &ret_data_len);
if (rc) {
if (rc == -EOPNOTSUPP) {
pr_warn_once("Server share %s does not support copy range\n", tcon->treeName);
goto req_res_key_exit;
} else if (rc) {
cifs_tcon_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
goto req_res_key_exit;
}