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| author | Jeff Layton <jlayton@redhat.com> | 2008-11-21 14:23:55 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-12-05 10:55:31 -0800 |
| commit | 0bbaf8d40b3908efe1bc87b80596611f98e0e011 (patch) | |
| tree | 71ffb9a9f1d84a1ddacd79c6a0829f9b2f0c4c9e /fs/cifs/cifsfs.c | |
| parent | d83ef7a3998ca72843aa010afbd8bd6135639ce4 (diff) | |
| download | lwn-0bbaf8d40b3908efe1bc87b80596611f98e0e011.tar.gz lwn-0bbaf8d40b3908efe1bc87b80596611f98e0e011.zip | |
cifs: reinstate sharing of tree connections
commit f1987b44f642e96176adc88b7ce23a1d74806f89 upstream
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>
Cc: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/cifs/cifsfs.c')
| -rw-r--r-- | fs/cifs/cifsfs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 42ec7f2e508b..2fcc66c1b0dc 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -510,10 +510,11 @@ 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); */ @@ -1014,7 +1015,6 @@ 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); |