korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-29 15:14:18 +08:00
Code Issues Packages Projects Releases Wiki Activity

cifs: cifs_ses_mark_for_reconnect should also update reconnect bits

Browse Source 
Recent restructuring of cifs_reconnect introduced a helper func
named cifs_ses_mark_for_reconnect, which updates the state of tcp
session for all the channels of a session for reconnect.

However, this does not update the session state and chans_need_reconnect
bitmask. This change fixes that.

Also, cifs_mark_tcp_sess_for_reconnect should mark set the bitmask
for all channels when the whole session is marked for reconnect.
Fixed that here too.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Shyam Prasad N 2022-01-17 07:15:02 +00:00 committed by Steve French
parent 47de760655
commit ba978e8325
6 changed files with 14 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
fs/cifs/cifs_swn.c
View File

@ -396,11 +396,11 @@ static int cifs_swn_resource_state_changed(struct cifs_swn_reg *swnreg, const ch
switch (state) {
case CIFS_SWN_RESOURCE_STATE_UNAVAILABLE:
cifs_dbg(FYI, "%s: resource name '%s' become unavailable\n", __func__, name);
cifs_ses_mark_for_reconnect(swnreg->tcon->ses);
cifs_reconnect(swnreg->tcon->ses->server, true);
break;
case CIFS_SWN_RESOURCE_STATE_AVAILABLE:
cifs_dbg(FYI, "%s: resource name '%s' become available\n", __func__, name);
cifs_ses_mark_for_reconnect(swnreg->tcon->ses);
cifs_reconnect(swnreg->tcon->ses->server, true);
break;
case CIFS_SWN_RESOURCE_STATE_UNKNOWN:
cifs_dbg(FYI, "%s: resource name '%s' changed to unknown state\n", __func__, name);
@ -498,10 +498,7 @@ static int cifs_swn_reconnect(struct cifs_tcon *tcon, struct sockaddr_storage *a
goto unlock;
}
spin_lock(&cifs_tcp_ses_lock);
if (tcon->ses->server->tcpStatus != CifsExiting)
tcon->ses->server->tcpStatus = CifsNeedReconnect;
spin_unlock(&cifs_tcp_ses_lock);
cifs_reconnect(tcon->ses->server, false);
unlock:
mutex_unlock(&tcon->ses->server->srv_mutex);

3
fs/cifs/cifsproto.h
View File

@ -131,6 +131,9 @@ extern int SendReceiveBlockingLock(const unsigned int xid,
struct smb_hdr *in_buf ,
struct smb_hdr *out_buf,
int *bytes_returned);
void
cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
bool mark_smb_session);
extern int cifs_reconnect(struct TCP_Server_Info *server,
bool mark_smb_session);
extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);

9
fs/cifs/connect.c
View File

@ -168,7 +168,7 @@ static void cifs_resolve_server(struct work_struct *work)
* @server needs to be previously set to CifsNeedReconnect.
*
*/
static void
void
cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
bool mark_smb_session)
{
@ -197,7 +197,10 @@ cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
if (!mark_smb_session && cifs_chan_needs_reconnect(ses, server))
goto next_session;
cifs_chan_set_need_reconnect(ses, server);
if (mark_smb_session)
CIFS_SET_ALL_CHANS_NEED_RECONNECT(ses);
else
cifs_chan_set_need_reconnect(ses, server);
/* If all channels need reconnect, then tcon needs reconnect */
if (!mark_smb_session && !CIFS_ALL_CHANS_NEED_RECONNECT(ses))
@ -4396,7 +4399,7 @@ static int tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *tco
*/
if (rc && server->current_fullpath != server->origin_fullpath) {
server->current_fullpath = server->origin_fullpath;
cifs_ses_mark_for_reconnect(tcon->ses);
cifs_reconnect(tcon->ses->server, true);
}
dfs_cache_free_tgts(tl);

2
fs/cifs/dfs_cache.c
View File

@ -1355,7 +1355,7 @@ static void mark_for_reconnect_if_needed(struct cifs_tcon *tcon, struct dfs_cach
}
cifs_dbg(FYI, "%s: no cached or matched targets. mark dfs share for reconnect.\n", __func__);
cifs_ses_mark_for_reconnect(tcon->ses);
cifs_reconnect(tcon->ses->server, true);
}
/* Refresh dfs referral of tcon and mark it for reconnect if needed */

5
fs/cifs/netmisc.c
View File

@ -896,10 +896,7 @@ map_and_check_smb_error(struct mid_q_entry *mid, bool logErr)
if (class == ERRSRV && code == ERRbaduid) {
cifs_dbg(FYI, "Server returned 0x%x, reconnecting session...\n",
code);
spin_lock(&cifs_tcp_ses_lock);
if (mid->server->tcpStatus != CifsExiting)
mid->server->tcpStatus = CifsNeedReconnect;
spin_unlock(&cifs_tcp_ses_lock);
cifs_reconnect(mid->server, false);
}
}

15
fs/cifs/sess.c
View File

@ -366,21 +366,6 @@ out:
return rc;
}
/* Mark all session channels for reconnect */
void cifs_ses_mark_for_reconnect(struct cifs_ses *ses)
{
int i;
spin_lock(&cifs_tcp_ses_lock);
spin_lock(&ses->chan_lock);
for (i = 0; i < ses->chan_count; i++) {
if (ses->chans[i].server->tcpStatus != CifsExiting)
ses->chans[i].server->tcpStatus = CifsNeedReconnect;
}
spin_unlock(&ses->chan_lock);
spin_unlock(&cifs_tcp_ses_lock);
}
static __u32 cifs_ssetup_hdr(struct cifs_ses *ses,
struct TCP_Server_Info *server,
SESSION_SETUP_ANDX *pSMB)