diff options
| author | Jeff Layton <jlayton@redhat.com> | 2009-08-28 10:11:11 -0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2009-09-01 22:25:29 +0000 |
| commit | 1b49c5566136455764a8d17ead25784f534c202d (patch) | |
| tree | 6946842743140355a6f6b1fb1f27fbfa59132337 /fs/cifs/transport.c | |
| parent | 8e047d09ee1143058b71f40c5f4d028dde52d883 (diff) | |
cifs: protect GlobalOplock_Q with its own spinlock
Right now, the GlobalOplock_Q is protected by the GlobalMid_Lock. That
lock is also used for completely unrelated purposes (mostly for managing
the global mid queue). Give the list its own dedicated spinlock
(cifs_oplock_lock) and rename the list to cifs_oplock_list to
eliminate the camel-case.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/transport.c')
| -rw-r--r-- | fs/cifs/transport.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 0ad3e2d116a6..1da4ab250eae 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -119,20 +119,19 @@ AllocOplockQEntry(struct inode *pinode, __u16 fid, struct cifsTconInfo *tcon) temp->pinode = pinode; temp->tcon = tcon; temp->netfid = fid; - spin_lock(&GlobalMid_Lock); - list_add_tail(&temp->qhead, &GlobalOplock_Q); - spin_unlock(&GlobalMid_Lock); + spin_lock(&cifs_oplock_lock); + list_add_tail(&temp->qhead, &cifs_oplock_list); + spin_unlock(&cifs_oplock_lock); } return temp; - } void DeleteOplockQEntry(struct oplock_q_entry *oplockEntry) { - spin_lock(&GlobalMid_Lock); + spin_lock(&cifs_oplock_lock); /* should we check if list empty first? */ list_del(&oplockEntry->qhead); - spin_unlock(&GlobalMid_Lock); + spin_unlock(&cifs_oplock_lock); kmem_cache_free(cifs_oplock_cachep, oplockEntry); } @@ -144,14 +143,14 @@ void DeleteTconOplockQEntries(struct cifsTconInfo *tcon) if (tcon == NULL) return; - spin_lock(&GlobalMid_Lock); - list_for_each_entry(temp, &GlobalOplock_Q, qhead) { + spin_lock(&cifs_oplock_lock); + list_for_each_entry(temp, &cifs_oplock_list, qhead) { if ((temp->tcon) && (temp->tcon == tcon)) { list_del(&temp->qhead); kmem_cache_free(cifs_oplock_cachep, temp); } } - spin_unlock(&GlobalMid_Lock); + spin_unlock(&cifs_oplock_lock); } static int |