From 24aa338611e9b02d045a1a99050135b0d49f41b5 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Tue, 21 Jan 2014 15:48:23 -0800 Subject: ocfs2: shift allocation ocfs2_live_connection to user_connect() We perform this because the DLM recovery callbacks will require the ocfs2_live_connection structure to record the node information when dlm_new_lockspace() is updated (in the last patch of the series). Before calling dlm_new_lockspace(), we need the structure ready for the .recover_done() callback, which would set oc_this_node. This is the reason we allocate ocfs2_live_connection beforehand in user_connect(). [AKPM] rc initialization is not required because it assigned in case of errors. It will be cleared by compiler anyways. Signed-off-by: Goldwyn Rodrigues Reveiwed-by: Mark Fasheh Cc: Joel Becker Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ocfs2/stack_user.c | 37 ++++++++++++++++++------------------- 1 file changed, 18 insertions(+), 19 deletions(-) diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index 4111855a4def..0afb86d9b279 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -200,15 +200,10 @@ static struct ocfs2_live_connection *ocfs2_connection_find(const char *name) * mount path. Since the VFS prevents multiple calls to * fill_super(), we can't get dupes here. */ -static int ocfs2_live_connection_new(struct ocfs2_cluster_connection *conn, - struct ocfs2_live_connection **c_ret) +static int ocfs2_live_connection_attach(struct ocfs2_cluster_connection *conn, + struct ocfs2_live_connection *c) { int rc = 0; - struct ocfs2_live_connection *c; - - c = kzalloc(sizeof(struct ocfs2_live_connection), GFP_KERNEL); - if (!c) - return -ENOMEM; mutex_lock(&ocfs2_control_lock); c->oc_conn = conn; @@ -222,12 +217,6 @@ static int ocfs2_live_connection_new(struct ocfs2_cluster_connection *conn, } mutex_unlock(&ocfs2_control_lock); - - if (!rc) - *c_ret = c; - else - kfree(c); - return rc; } @@ -840,12 +829,18 @@ const struct dlm_lockspace_ops ocfs2_ls_ops = { static int user_cluster_connect(struct ocfs2_cluster_connection *conn) { dlm_lockspace_t *fsdlm; - struct ocfs2_live_connection *uninitialized_var(control); - int rc = 0; + struct ocfs2_live_connection *lc; + int rc; BUG_ON(conn == NULL); - rc = ocfs2_live_connection_new(conn, &control); + lc = kzalloc(sizeof(struct ocfs2_live_connection), GFP_KERNEL); + if (!lc) { + rc = -ENOMEM; + goto out; + } + + rc = ocfs2_live_connection_attach(conn, lc); if (rc) goto out; @@ -861,20 +856,24 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn) conn->cc_version.pv_major, conn->cc_version.pv_minor, running_proto.pv_major, running_proto.pv_minor); rc = -EPROTO; - ocfs2_live_connection_drop(control); + ocfs2_live_connection_drop(lc); + lc = NULL; goto out; } rc = dlm_new_lockspace(conn->cc_name, NULL, DLM_LSFL_FS, DLM_LVB_LEN, NULL, NULL, NULL, &fsdlm); if (rc) { - ocfs2_live_connection_drop(control); + ocfs2_live_connection_drop(lc); + lc = NULL; goto out; } - conn->cc_private = control; + conn->cc_private = lc; conn->cc_lockspace = fsdlm; out: + if (rc && lc) + kfree(lc); return rc; } -- cgit v1.2.3