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authorJeff Layton <jlayton@redhat.com>2008-11-15 11:12:47 -0500
committerSteve French <sfrench@us.ibm.com>2008-11-17 03:14:12 +0000
commitf1987b44f642e96176adc88b7ce23a1d74806f89 (patch)
treefceaebf6b6d7eb1d1150120c44a842cbce8347f6 /fs/cifs/cifsfs.c
parentd82c2df54e2f7e447476350848d8eccc8d2fe46a (diff)
cifs: reinstate sharing of tree connections
Use a similar approach to the SMB session sharing. Add a list of tcons attached to each SMB session. Move the refcount to non-atomic. Protect all of the above with the cifs_tcp_ses_lock. Add functions to properly find and put references to the tcons. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index a1e96620b09..d9cf467309e 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -514,10 +514,11 @@ static void cifs_umount_begin(struct super_block *sb)
tcon = cifs_sb->tcon;
if (tcon == NULL)
return;
- down(&tcon->tconSem);
- if (atomic_read(&tcon->useCount) == 1)
+
+ read_lock(&cifs_tcp_ses_lock);
+ if (tcon->tc_count == 1)
tcon->tidStatus = CifsExiting;
- up(&tcon->tconSem);
+ read_unlock(&cifs_tcp_ses_lock);
/* cancel_brl_requests(tcon); */ /* BB mark all brl mids as exiting */
/* cancel_notify_requests(tcon); */
@@ -1060,7 +1061,6 @@ init_cifs(void)
int rc = 0;
cifs_proc_init();
INIT_LIST_HEAD(&cifs_tcp_ses_list);
- INIT_LIST_HEAD(&GlobalTreeConnectionList); /* BB to be removed by jl */
INIT_LIST_HEAD(&GlobalOplock_Q);
#ifdef CONFIG_CIFS_EXPERIMENTAL
INIT_LIST_HEAD(&GlobalDnotifyReqList);