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authorSteve French <smfrench@gmail.com>2016-09-23 02:23:56 +0200
committerSteve French <smfrench@gmail.com>2016-10-12 19:08:33 +0200
commit52ace1ef1259e119a24a34b45cb800c4e7529090 (patch)
tree41f8d27ff08c4086025c5894f2cdcd8ee5f205e6 /fs/cifs/smb2pdu.c
parentClarify locking of cifs file and tcon structures and make more granular (diff)
downloadlinux-52ace1ef1259e119a24a34b45cb800c4e7529090.tar.xz
linux-52ace1ef1259e119a24a34b45cb800c4e7529090.zip
fs/cifs: reopen persistent handles on reconnect
Continuous Availability features like persistent handles require that clients reconnect their open files, not just the sessions, soon after the network connection comes back up, otherwise the server will throw away the state (byte range locks, leases, deny modes) on those handles after a timeout. Add code to reconnect handles when use_persistent set (e.g. Continuous Availability shares) after tree reconnect. Signed-off-by: Aurelien Aptel <aaptel@suse.com> Reviewed-by: Germano Percossi <germano.percossi@citrix.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to '')
-rw-r--r--fs/cifs/smb2pdu.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 3eec96ca87d9..4d944c4c55a8 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -250,8 +250,13 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
}
cifs_mark_open_files_invalid(tcon);
+
rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nls_codepage);
mutex_unlock(&tcon->ses->session_mutex);
+
+ if (tcon->use_persistent)
+ cifs_reopen_persistent_handles(tcon);
+
cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
if (rc)
goto out;