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CIFS: Move protocol specific tcon/tdis code to ops struct

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and rename variables around the code changes.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky
2012-05-25 11:11:39 +04:00
committed by Steve French
parent 58c45c58a1
commit 2e6e02ab6d
5 changed files with 56 additions and 35 deletions
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73
fs/cifs/connect.c
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@@ -2542,7 +2542,7 @@ cifs_find_tcon(struct cifs_ses *ses, const char *unc)
static void
cifs_put_tcon(struct cifs_tcon *tcon)
{
int xid;
unsigned int xid;
struct cifs_ses *ses = tcon->ses;
cFYI(1, "%s: tc_count=%d", __func__, tcon->tc_count);
@@ -2556,7 +2556,8 @@ cifs_put_tcon(struct cifs_tcon *tcon)
spin_unlock(&cifs_tcp_ses_lock);
xid = GetXid();
CIFSSMBTDis(xid, tcon);
if (ses->server->ops->tree_disconnect)
ses->server->ops->tree_disconnect(xid, tcon);
_FreeXid(xid);
cifs_fscache_release_super_cookie(tcon);
@@ -2581,6 +2582,11 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
return tcon;
}
if (!ses->server->ops->tree_connect) {
rc = -ENOSYS;
goto out_fail;
}
tcon = tconInfoAlloc();
if (tcon == NULL) {
rc = -ENOMEM;
@@ -2603,13 +2609,15 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
goto out_fail;
}
/* BB Do we need to wrap session_mutex around
* this TCon call and Unix SetFS as
* we do on SessSetup and reconnect? */
/*
* BB Do we need to wrap session_mutex around this TCon call and Unix
* SetFS as we do on SessSetup and reconnect?
*/
xid = GetXid();
rc = CIFSTCon(xid, ses, volume_info->UNC, tcon, volume_info->local_nls);
rc = ses->server->ops->tree_connect(xid, ses, volume_info->UNC, tcon,
volume_info->local_nls);
FreeXid(xid);
cFYI(1, "CIFS Tcon rc = %d", rc);
cFYI(1, "Tcon rc = %d", rc);
if (rc)
goto out_fail;
@@ -2618,10 +2626,11 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
cFYI(1, "DFS disabled (%d)", tcon->Flags);
}
tcon->seal = volume_info->seal;
/* we can have only one retry value for a connection
to a share so for resources mounted more than once
to the same server share the last value passed in
for the retry flag is used */
/*
* We can have only one retry value for a connection to a share so for
* resources mounted more than once to the same server share the last
* value passed in for the retry flag is used.
*/
tcon->retry = volume_info->retry;
tcon->nocase = volume_info->nocase;
tcon->local_lease = volume_info->local_lease;
@@ -2755,37 +2764,41 @@ out:
}
int
get_dfs_path(int xid, struct cifs_ses *pSesInfo, const char *old_path,
const struct nls_table *nls_codepage, unsigned int *pnum_referrals,
struct dfs_info3_param **preferrals, int remap)
get_dfs_path(int xid, struct cifs_ses *ses, const char *old_path,
const struct nls_table *nls_codepage, unsigned int *num_referrals,
struct dfs_info3_param **referrals, int remap)
{
char *temp_unc;
int rc = 0;
*pnum_referrals = 0;
*preferrals = NULL;
if (!ses->server->ops->tree_connect)
return -ENOSYS;
if (pSesInfo->ipc_tid == 0) {
*num_referrals = 0;
*referrals = NULL;
if (ses->ipc_tid == 0) {
temp_unc = kmalloc(2 /* for slashes */ +
strnlen(pSesInfo->serverName,
SERVER_NAME_LEN_WITH_NULL * 2)
+ 1 + 4 /* slash IPC$ */ + 2,
GFP_KERNEL);
strnlen(ses->serverName, SERVER_NAME_LEN_WITH_NULL * 2)
+ 1 + 4 /* slash IPC$ */ + 2, GFP_KERNEL);
if (temp_unc == NULL)
return -ENOMEM;
temp_unc[0] = '\\';
temp_unc[1] = '\\';
strcpy(temp_unc + 2, pSesInfo->serverName);
strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$");
rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage);
cFYI(1, "CIFS Tcon rc = %d ipc_tid = %d", rc, pSesInfo->ipc_tid);
strcpy(temp_unc + 2, ses->serverName);
strcpy(temp_unc + 2 + strlen(ses->serverName), "\\IPC$");
rc = ses->server->ops->tree_connect(xid, ses, temp_unc, NULL,
nls_codepage);
cFYI(1, "Tcon rc = %d ipc_tid = %d", rc, ses->ipc_tid);
kfree(temp_unc);
}
if (rc == 0)
rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals,
pnum_referrals, nls_codepage, remap);
/* BB map targetUNCs to dfs_info3 structures, here or
in CIFSGetDFSRefer BB */
rc = CIFSGetDFSRefer(xid, ses, old_path, referrals,
num_referrals, nls_codepage, remap);
/*
* BB - map targetUNCs to dfs_info3 structures, here or in
* CIFSGetDFSRefer.
*/
return rc;
}
@@ -3777,7 +3790,7 @@ out:
* pointer may be NULL.
*/
int
CIFSTCon(unsigned int xid, struct cifs_ses *ses,
CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
const char *tree, struct cifs_tcon *tcon,
const struct nls_table *nls_codepage)
{