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authorJeff Layton <jlayton@redhat.com>2013-05-24 07:40:59 -0400
committerSteve French <smfrench@gmail.com>2013-06-24 01:56:38 -0500
commita0b3df5cf1fc46ad885bbc5c9f56ff0f4877beb5 (patch)
tree3241812595f61c69cebecbda2319ae5b07dfb766 /fs/cifs
parentacdb37c361dc87e165889a504e291c1e82ae133c (diff)
downloadop-kernel-dev-a0b3df5cf1fc46ad885bbc5c9f56ff0f4877beb5.zip
op-kernel-dev-a0b3df5cf1fc46ad885bbc5c9f56ff0f4877beb5.tar.gz
cifs: add a "nosharesock" mount option to force new sockets to server to be created
Some servers set max_vcs to 1 and actually do enforce that limit. Add a new mount option to work around this behavior that forces a mount request to open a new socket to the server instead of reusing an existing one. I'd prefer to come up with a solution that doesn't require this, so consider this a debug patch that you can use to determine whether this is the real problem. Cc: Jim McDonough <jmcd@samba.org> Cc: Steve French <smfrench@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifsglob.h1
-rw-r--r--fs/cifs/connect.c9
2 files changed, 9 insertions, 1 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 4f07f6f..db9f985 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -441,6 +441,7 @@ struct smb_vol {
bool mfsymlinks:1; /* use Minshall+French Symlinks */
bool multiuser:1;
bool rwpidforward:1; /* pid forward for read/write operations */
+ bool nosharesock;
unsigned int rsize;
unsigned int wsize;
bool sockopt_tcp_nodelay:1;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index e3bc39b..180d9b9 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -85,7 +85,7 @@ enum {
Opt_acl, Opt_noacl, Opt_locallease,
Opt_sign, Opt_seal, Opt_noac,
Opt_fsc, Opt_mfsymlinks,
- Opt_multiuser, Opt_sloppy,
+ Opt_multiuser, Opt_sloppy, Opt_nosharesock,
/* Mount options which take numeric value */
Opt_backupuid, Opt_backupgid, Opt_uid,
@@ -165,6 +165,7 @@ static const match_table_t cifs_mount_option_tokens = {
{ Opt_mfsymlinks, "mfsymlinks" },
{ Opt_multiuser, "multiuser" },
{ Opt_sloppy, "sloppy" },
+ { Opt_nosharesock, "nosharesock" },
{ Opt_backupuid, "backupuid=%s" },
{ Opt_backupgid, "backupgid=%s" },
@@ -1455,6 +1456,9 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
case Opt_sloppy:
sloppy = true;
break;
+ case Opt_nosharesock:
+ vol->nosharesock = true;
+ break;
/* Numeric Values */
case Opt_backupuid:
@@ -2027,6 +2031,9 @@ static int match_server(struct TCP_Server_Info *server, struct smb_vol *vol)
{
struct sockaddr *addr = (struct sockaddr *)&vol->dstaddr;
+ if (vol->nosharesock)
+ return 0;
+
if ((server->vals != vol->vals) || (server->ops != vol->ops))
return 0;
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