[Ocfs2-devel] [PATCH 03/30] ocfs2: Handle workqueue changes

Joel Becker Joel.Becker at oracle.com
Fri Dec 21 00:53:39 PST 2007


On Thu, Dec 20, 2007 at 03:29:20PM -0800, Sunil Mushran wrote:
> Commit 52bad64d95bd89e08c49ec5a071fa6dcbe5a1a9c in mainline makes
> changes to workqueue.h. This patch allows one to build ocfs2 with
> kernels having/not having that change.
> 

Here the check is reversed.  Without running configure, the tree expects
an old kernel (it will behave as if delayed_work does not exist).

> Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com>
> ---
>  Config.make.in                  |    2 +
>  Makefile                        |    3 +-
>  configure.in                    |    6 ++++
>  fs/Makefile                     |   64 +++++++++++++++++++++++++++++++++++++++
>  fs/ocfs2/Makefile               |    4 ++
>  fs/ocfs2/alloc.c                |    8 ++--
>  fs/ocfs2/cluster/Makefile       |    4 ++
>  fs/ocfs2/cluster/heartbeat.c    |    6 ++--
>  fs/ocfs2/cluster/quorum.c       |    4 +-
>  fs/ocfs2/cluster/tcp.c          |   56 +++++++++++++++++-----------------
>  fs/ocfs2/dlm/Makefile           |    4 ++
>  fs/ocfs2/dlm/dlmcommon.h        |    2 +-
>  fs/ocfs2/dlm/dlmdomain.c        |    2 +-
>  fs/ocfs2/dlm/dlmrecovery.c      |    2 +-
>  fs/ocfs2/dlm/userdlm.c          |    8 ++--
>  fs/ocfs2/journal.c              |    4 +-
>  fs/ocfs2/journal.h              |    2 +-
>  fs/ocfs2/super.c                |    2 +-
>  kapi-compat/include/workqueue.h |   17 ++++++++++
>  19 files changed, 151 insertions(+), 49 deletions(-)
>  create mode 100644 fs/Makefile
>  create mode 100644 kapi-compat/include/workqueue.h
> 
> diff --git a/Config.make.in b/Config.make.in
> index c9e0132..befeb79 100644
> --- a/Config.make.in
> +++ b/Config.make.in
> @@ -57,6 +57,8 @@ MAKEBO_VERSION = @VERSION@
>  
>  EXTRA_CFLAGS += @KAPI_COMPAT_CFLAGS@
>  
> +DELAYED_WORK_DEFINED = @DELAYED_WORK_DEFINED@
> +
>  OCFS_DEBUG = @OCFS_DEBUG@
>  
>  ifneq ($(OCFS_DEBUG),)
> diff --git a/Makefile b/Makefile
> index 227ab23..4752593 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -8,7 +8,8 @@ SUBDIRS = fs vendor
>  
>  LINUX_INCLUDE_FILES =
>  
> -KAPI_COMPAT_FILES =
> +KAPI_COMPAT_FILES = \
> +	kapi-compat/include/workqueue.h
>  
>  PATCH_FILES =
>  
> diff --git a/configure.in b/configure.in
> index 1af47fc..72567b5 100644
> --- a/configure.in
> +++ b/configure.in
> @@ -156,6 +156,12 @@ case "$kversion" in
>      ;;
>  esac
>  
> +DELAYED_WORK_DEFINED=
> +OCFS2_CHECK_KERNEL([struct delayed_work in workqueue.h], workqueue.h,
> +  DELAYED_WORK_DEFINED=yes, , [^struct delayed_work])
> +AC_SUBST(DELAYED_WORK_DEFINED)
> +KAPI_COMPAT_HEADERS="$KAPI_COMPAT_HEADERS workqueue.h"
> +
>  # using -include has two advantages:
>  #  the source doesn't need to know to include compat headers
>  #  the compat header file names don't go through the search path
> diff --git a/fs/Makefile b/fs/Makefile
> new file mode 100644
> index 0000000..d7f3aec
> --- /dev/null
> +++ b/fs/Makefile
> @@ -0,0 +1,64 @@
> +
> +ifeq ($(KERNELRELEASE),)
> +TOPDIR = ..
> +
> +include $(TOPDIR)/Preamble.make
> +else
> +# We are included by kbuild.
> +
> +OUR_TOPDIR	:= $(M)/..
> +
> +include $(OUR_TOPDIR)/Config.make
> +
> +endif
> +
> +#
> +# As 2.6 kbuild is unhappy seeing SUBDIRS, this is a safe one to
> +# set globally.  Do not include trailing slashes.
> +#
> +SAFE_SUBDIRS :=
> +
> +SAFE_SUBDIRS += ocfs2
> +
> +ifneq ($(KERNELRELEASE),)
> +#
> +# Called under kbuild 2.6
> +#
> +
> +obj-m	+= $(addsuffix /,$(SAFE_SUBDIRS))
> +INSTALL_MOD_DIR := fs/ocfs2
> +
> +else
> +#
> +# Called from a regular "make". Just forward to kbuild.
> +#
> +
> +ALL_RULES = build-modules
> +
> +CLEAN_RULES = clean-modules
> +
> +INSTALL_RULES = install-modules
> +
> +# Traverse subdirs via Makebo for "make dist"
> +ifeq ($(MAKECMDGOALS),dist-all)
> +SUBDIRS = $(SAFE_SUBDIRS)
> +endif
> +
> +build-modules:
> +	$(MAKE) -C ocfs2 stamp-md5
> +	$(MAKE) -C ocfs2/cluster stamp-md5
> +	$(MAKE) -C ocfs2/dlm stamp-md5
> +	$(MAKE) -C $(KERNELDIR) M=$(CURDIR) modules
> +
> +install-modules:
> +	$(MAKE) -C $(KERNELDIR) M=$(CURDIR) modules_install
> +
> +clean-modules:
> +	$(MAKE) -C $(KERNELDIR) M=$(CURDIR) clean
> +	-rm ocfs2/stamp-md5
> +	-rm ocfs2/cluster/stamp-md5
> +	-rm ocfs2/dlm/stamp-md5
> +
> +include $(TOPDIR)/Postamble.make
> +
> +endif
> diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile
> index dce2a62..0edfed7 100644
> --- a/fs/ocfs2/Makefile
> +++ b/fs/ocfs2/Makefile
> @@ -25,6 +25,10 @@ EXTRA_CFLAGS += -DOCFS2_CDSL
>  
>  EXTRA_CFLAGS += -DCONFIG_OCFS2_DEBUG_MASKLOG
>  
> +ifdef DELAYED_WORK_DEFINED
> +EXTRA_CFLAGS += -DDELAYED_WORK_DEFINED
> +endif
> +
>  #
>  # Since SUBDIRS means something to kbuild, define them safely.  Do not
>  # include trailing slashes.
> diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
> index 4ba7f0b..5a8a4f2 100644
> --- a/fs/ocfs2/alloc.c
> +++ b/fs/ocfs2/alloc.c
> @@ -4752,11 +4752,11 @@ int ocfs2_flush_truncate_log(struct ocfs2_super *osb)
>  	return status;
>  }
>  
> -static void ocfs2_truncate_log_worker(struct work_struct *work)
> +static void ocfs2_truncate_log_worker(kapi_work_struct_t *work)
>  {
>  	int status;
>  	struct ocfs2_super *osb =
> -		container_of(work, struct ocfs2_super,
> +		kapi_container_of(work, struct ocfs2_super,
>  			     osb_truncate_log_wq.work);
>  
>  	mlog_entry_void();
> @@ -4989,8 +4989,8 @@ int ocfs2_truncate_log_init(struct ocfs2_super *osb)
>  	/* ocfs2_truncate_log_shutdown keys on the existence of
>  	 * osb->osb_tl_inode so we don't set any of the osb variables
>  	 * until we're sure all is well. */
> -	INIT_DELAYED_WORK(&osb->osb_truncate_log_wq,
> -			  ocfs2_truncate_log_worker);
> +	KAPI_INIT_DELAYED_WORK(&osb->osb_truncate_log_wq,
> +			  ocfs2_truncate_log_worker, osb);
>  	osb->osb_tl_bh    = tl_bh;
>  	osb->osb_tl_inode = tl_inode;
>  
> diff --git a/fs/ocfs2/cluster/Makefile b/fs/ocfs2/cluster/Makefile
> index c9c2e9b..a4251f5 100644
> --- a/fs/ocfs2/cluster/Makefile
> +++ b/fs/ocfs2/cluster/Makefile
> @@ -13,6 +13,10 @@ endif
>  
>  EXTRA_CFLAGS += -DCONFIG_OCFS2_DEBUG_MASKLOG
>  
> +ifdef DELAYED_WORK_DEFINED
> +EXTRA_CFLAGS += -DDELAYED_WORK_DEFINED
> +endif
> +
>  SOURCES =			\
>  	heartbeat.c		\
>  	masklog.c		\
> diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
> index f14b541..e610665 100644
> --- a/fs/ocfs2/cluster/heartbeat.c
> +++ b/fs/ocfs2/cluster/heartbeat.c
> @@ -156,10 +156,10 @@ struct o2hb_bio_wait_ctxt {
>  	int               wc_error;
>  };
>  
> -static void o2hb_write_timeout(struct work_struct *work)
> +static void o2hb_write_timeout(kapi_work_struct_t *work)
>  {
>  	struct o2hb_region *reg =
> -		container_of(work, struct o2hb_region,
> +		kapi_container_of(work, struct o2hb_region,
>  			     hr_write_timeout_work.work);
>  
>  	mlog(ML_ERROR, "Heartbeat write timeout to device %s after %u "
> @@ -1306,7 +1306,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
>  		goto out;
>  	}
>  
> -	INIT_DELAYED_WORK(&reg->hr_write_timeout_work, o2hb_write_timeout);
> +	KAPI_INIT_DELAYED_WORK(&reg->hr_write_timeout_work, o2hb_write_timeout, reg);
>  
>  	/*
>  	 * A node is considered live after it has beat LIVE_THRESHOLD
> diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
> index bbacf7d..df9b74a 100644
> --- a/fs/ocfs2/cluster/quorum.c
> +++ b/fs/ocfs2/cluster/quorum.c
> @@ -91,7 +91,7 @@ void o2quo_disk_timeout(void)
>  	o2quo_fence_self();
>  }
>  
> -static void o2quo_make_decision(struct work_struct *work)
> +static void o2quo_make_decision(kapi_work_struct_t *work)
>  {
>  	int quorum;
>  	int lowest_hb, lowest_reachable = 0, fence = 0;
> @@ -309,7 +309,7 @@ void o2quo_init(void)
>  	struct o2quo_state *qs = &o2quo_state;
>  
>  	spin_lock_init(&qs->qs_lock);
> -	INIT_WORK(&qs->qs_work, o2quo_make_decision);
> +	KAPI_INIT_WORK(&qs->qs_work, o2quo_make_decision, NULL);
>  }
>  
>  void o2quo_exit(void)
> diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
> index 685c180..c4a0c73 100644
> --- a/fs/ocfs2/cluster/tcp.c
> +++ b/fs/ocfs2/cluster/tcp.c
> @@ -140,11 +140,11 @@ static int o2net_sys_err_translations[O2NET_ERR_MAX] =
>  		 [O2NET_ERR_DIED]	= -EHOSTDOWN,};
>  
>  /* can't quite avoid *all* internal declarations :/ */
> -static void o2net_sc_connect_completed(struct work_struct *work);
> -static void o2net_rx_until_empty(struct work_struct *work);
> -static void o2net_shutdown_sc(struct work_struct *work);
> +static void o2net_sc_connect_completed(kapi_work_struct_t *work);
> +static void o2net_rx_until_empty(kapi_work_struct_t *work);
> +static void o2net_shutdown_sc(kapi_work_struct_t *work);
>  static void o2net_listen_data_ready(struct sock *sk, int bytes);
> -static void o2net_sc_send_keep_req(struct work_struct *work);
> +static void o2net_sc_send_keep_req(kapi_work_struct_t *work);
>  static void o2net_idle_timer(unsigned long data);
>  static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
>  static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc);
> @@ -330,10 +330,10 @@ static struct o2net_sock_container *sc_alloc(struct o2nm_node *node)
>  	o2nm_node_get(node);
>  	sc->sc_node = node;
>  
> -	INIT_WORK(&sc->sc_connect_work, o2net_sc_connect_completed);
> -	INIT_WORK(&sc->sc_rx_work, o2net_rx_until_empty);
> -	INIT_WORK(&sc->sc_shutdown_work, o2net_shutdown_sc);
> -	INIT_DELAYED_WORK(&sc->sc_keepalive_work, o2net_sc_send_keep_req);
> +	KAPI_INIT_WORK(&sc->sc_connect_work, o2net_sc_connect_completed, sc);
> +	KAPI_INIT_WORK(&sc->sc_rx_work, o2net_rx_until_empty, sc);
> +	KAPI_INIT_WORK(&sc->sc_shutdown_work, o2net_shutdown_sc, sc);
> +	KAPI_INIT_DELAYED_WORK(&sc->sc_keepalive_work, o2net_sc_send_keep_req, sc);
>  
>  	init_timer(&sc->sc_idle_timeout);
>  	sc->sc_idle_timeout.function = o2net_idle_timer;
> @@ -600,10 +600,10 @@ static void o2net_ensure_shutdown(struct o2net_node *nn,
>   * ourselves as state_change couldn't get the nn_lock and call set_nn_state
>   * itself.
>   */
> -static void o2net_shutdown_sc(struct work_struct *work)
> +static void o2net_shutdown_sc(kapi_work_struct_t *work)
>  {
>  	struct o2net_sock_container *sc =
> -		container_of(work, struct o2net_sock_container,
> +		kapi_container_of(work, struct o2net_sock_container,
>  			     sc_shutdown_work);
>  	struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num);
>  
> @@ -1306,10 +1306,10 @@ out:
>  /* this work func is triggerd by data ready.  it reads until it can read no
>   * more.  it interprets 0, eof, as fatal.  if data_ready hits while we're doing
>   * our work the work struct will be marked and we'll be called again. */
> -static void o2net_rx_until_empty(struct work_struct *work)
> +static void o2net_rx_until_empty(kapi_work_struct_t *work)
>  {
>  	struct o2net_sock_container *sc =
> -		container_of(work, struct o2net_sock_container, sc_rx_work);
> +		kapi_container_of(work, struct o2net_sock_container, sc_rx_work);
>  	int ret;
>  
>  	do {
> @@ -1367,10 +1367,10 @@ static void o2net_initialize_handshake(void)
>  
>  /* called when a connect completes and after a sock is accepted.  the
>   * rx path will see the response and mark the sc valid */
> -static void o2net_sc_connect_completed(struct work_struct *work)
> +static void o2net_sc_connect_completed(kapi_work_struct_t *work)
>  {
>  	struct o2net_sock_container *sc =
> -		container_of(work, struct o2net_sock_container,
> +		kapi_container_of(work, struct o2net_sock_container,
>  			     sc_connect_work);
>  
>  	mlog(ML_MSG, "sc sending handshake with ver %llu id %llx\n",
> @@ -1383,10 +1383,10 @@ static void o2net_sc_connect_completed(struct work_struct *work)
>  }
>  
>  /* this is called as a work_struct func. */
> -static void o2net_sc_send_keep_req(struct work_struct *work)
> +static void o2net_sc_send_keep_req(kapi_work_struct_t *work)
>  {
>  	struct o2net_sock_container *sc =
> -		container_of(work, struct o2net_sock_container,
> +		kapi_container_of(work, struct o2net_sock_container,
>  			     sc_keepalive_work.work);
>  
>  	o2net_sendpage(sc, o2net_keep_req, sizeof(*o2net_keep_req));
> @@ -1446,10 +1446,10 @@ static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
>   * having a connect attempt fail, etc. This centralizes the logic which decides
>   * if a connect attempt should be made or if we should give up and all future
>   * transmit attempts should fail */
> -static void o2net_start_connect(struct work_struct *work)
> +static void o2net_start_connect(kapi_work_struct_t *work)
>  {
>  	struct o2net_node *nn =
> -		container_of(work, struct o2net_node, nn_connect_work.work);
> +		kapi_container_of(work, struct o2net_node, nn_connect_work.work);
>  	struct o2net_sock_container *sc = NULL;
>  	struct o2nm_node *node = NULL, *mynode = NULL;
>  	struct socket *sock = NULL;
> @@ -1553,10 +1553,10 @@ out:
>  	return;
>  }
>  
> -static void o2net_connect_expired(struct work_struct *work)
> +static void o2net_connect_expired(kapi_work_struct_t *work)
>  {
>  	struct o2net_node *nn =
> -		container_of(work, struct o2net_node, nn_connect_expired.work);
> +		kapi_container_of(work, struct o2net_node, nn_connect_expired.work);
>  
>  	spin_lock(&nn->nn_lock);
>  	if (!nn->nn_sc_valid) {
> @@ -1572,10 +1572,10 @@ static void o2net_connect_expired(struct work_struct *work)
>  	spin_unlock(&nn->nn_lock);
>  }
>  
> -static void o2net_still_up(struct work_struct *work)
> +static void o2net_still_up(kapi_work_struct_t *work)
>  {
>  	struct o2net_node *nn =
> -		container_of(work, struct o2net_node, nn_still_up.work);
> +		kapi_container_of(work, struct o2net_node, nn_still_up.work);
>  
>  	o2quo_hb_still_up(o2net_num_from_nn(nn));
>  }
> @@ -1775,7 +1775,7 @@ out:
>  	return ret;
>  }
>  
> -static void o2net_accept_many(struct work_struct *work)
> +static void o2net_accept_many(kapi_work_struct_t *work)
>  {
>  	struct socket *sock = o2net_listen_sock;
>  	while (o2net_accept_one(sock) == 0)
> @@ -1831,7 +1831,7 @@ static int o2net_open_listening_sock(__be32 addr, __be16 port)
>  	write_unlock_bh(&sock->sk->sk_callback_lock);
>  
>  	o2net_listen_sock = sock;
> -	INIT_WORK(&o2net_listen_work, o2net_accept_many);
> +	KAPI_INIT_WORK(&o2net_listen_work, o2net_accept_many, sock);
>  
>  	sock->sk->sk_reuse = 1;
>  	ret = sock->ops->bind(sock, (struct sockaddr *)&sin, sizeof(sin));
> @@ -1951,10 +1951,10 @@ int o2net_init(void)
>  		struct o2net_node *nn = o2net_nn_from_num(i);
>  
>  		spin_lock_init(&nn->nn_lock);
> -		INIT_DELAYED_WORK(&nn->nn_connect_work, o2net_start_connect);
> -		INIT_DELAYED_WORK(&nn->nn_connect_expired,
> -				  o2net_connect_expired);
> -		INIT_DELAYED_WORK(&nn->nn_still_up, o2net_still_up);
> +		KAPI_INIT_DELAYED_WORK(&nn->nn_connect_work, o2net_start_connect, nn);
> +		KAPI_INIT_DELAYED_WORK(&nn->nn_connect_expired,
> +				  o2net_connect_expired, nn);
> +		KAPI_INIT_DELAYED_WORK(&nn->nn_still_up, o2net_still_up, nn);
>  		/* until we see hb from a node we'll return einval */
>  		nn->nn_persistent_error = -ENOTCONN;
>  		init_waitqueue_head(&nn->nn_sc_wq);
> diff --git a/fs/ocfs2/dlm/Makefile b/fs/ocfs2/dlm/Makefile
> index 7e1031e..b4fb8e3 100644
> --- a/fs/ocfs2/dlm/Makefile
> +++ b/fs/ocfs2/dlm/Makefile
> @@ -16,6 +16,10 @@ EXTRA_CFLAGS += -I$(OUR_TOPDIR)/fs/ocfs2
>  
>  EXTRA_CFLAGS += -DCONFIG_OCFS2_DEBUG_MASKLOG
>  
> +ifdef DELAYED_WORK_DEFINED
> +EXTRA_CFLAGS += -DDELAYED_WORK_DEFINED
> +endif
> +
>  DLM_SOURCES =			\
>  	dlmast.c		\
>  	dlmconvert.c		\
> diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
> index e90b92f..cddf85a 100644
> --- a/fs/ocfs2/dlm/dlmcommon.h
> +++ b/fs/ocfs2/dlm/dlmcommon.h
> @@ -153,7 +153,7 @@ static inline struct hlist_head *dlm_lockres_hash(struct dlm_ctxt *dlm, unsigned
>   * called functions that cannot be directly called from the
>   * net message handlers for some reason, usually because
>   * they need to send net messages of their own. */
> -void dlm_dispatch_work(struct work_struct *work);
> +void dlm_dispatch_work(kapi_work_struct_t *work);
>  
>  struct dlm_lock_resource;
>  struct dlm_work_item;
> diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
> index 6954565..10b3e60 100644
> --- a/fs/ocfs2/dlm/dlmdomain.c
> +++ b/fs/ocfs2/dlm/dlmdomain.c
> @@ -1435,7 +1435,7 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain,
>  
>  	spin_lock_init(&dlm->work_lock);
>  	INIT_LIST_HEAD(&dlm->work_list);
> -	INIT_WORK(&dlm->dispatched_work, dlm_dispatch_work);
> +	KAPI_INIT_WORK(&dlm->dispatched_work, dlm_dispatch_work, dlm);
>  
>  	kref_init(&dlm->dlm_refs);
>  	dlm->dlm_state = DLM_CTXT_NEW;
> diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
> index a2c3316..3cf4f49 100644
> --- a/fs/ocfs2/dlm/dlmrecovery.c
> +++ b/fs/ocfs2/dlm/dlmrecovery.c
> @@ -153,7 +153,7 @@ static inline void dlm_reset_recovery(struct dlm_ctxt *dlm)
>  }
>  
>  /* Worker function used during recovery. */
> -void dlm_dispatch_work(struct work_struct *work)
> +void dlm_dispatch_work(kapi_work_struct_t *work)
>  {
>  	struct dlm_ctxt *dlm =
>  		container_of(work, struct dlm_ctxt, dispatched_work);
> diff --git a/fs/ocfs2/dlm/userdlm.c b/fs/ocfs2/dlm/userdlm.c
> index 7d2f578..2f6deb1 100644
> --- a/fs/ocfs2/dlm/userdlm.c
> +++ b/fs/ocfs2/dlm/userdlm.c
> @@ -171,14 +171,14 @@ static inline void user_dlm_grab_inode_ref(struct user_lock_res *lockres)
>  		BUG();
>  }
>  
> -static void user_dlm_unblock_lock(struct work_struct *work);
> +static void user_dlm_unblock_lock(kapi_work_struct_t *work);
>  
>  static void __user_dlm_queue_lockres(struct user_lock_res *lockres)
>  {
>  	if (!(lockres->l_flags & USER_LOCK_QUEUED)) {
>  		user_dlm_grab_inode_ref(lockres);
>  
> -		INIT_WORK(&lockres->l_work, user_dlm_unblock_lock);
> +		KAPI_INIT_WORK(&lockres->l_work, user_dlm_unblock_lock, lockres);
>  
>  		queue_work(user_dlm_worker, &lockres->l_work);
>  		lockres->l_flags |= USER_LOCK_QUEUED;
> @@ -278,11 +278,11 @@ static inline void user_dlm_drop_inode_ref(struct user_lock_res *lockres)
>  	iput(inode);
>  }
>  
> -static void user_dlm_unblock_lock(struct work_struct *work)
> +static void user_dlm_unblock_lock(kapi_work_struct_t *work)
>  {
>  	int new_level, status;
>  	struct user_lock_res *lockres =
> -		container_of(work, struct user_lock_res, l_work);
> +		kapi_container_of(work, struct user_lock_res, l_work);
>  	struct dlm_ctxt *dlm = dlm_ctxt_from_user_lockres(lockres);
>  
>  	mlog(0, "processing lockres %.*s\n", lockres->l_namelen,
> diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
> index f9d01e2..b94208f 100644
> --- a/fs/ocfs2/journal.c
> +++ b/fs/ocfs2/journal.c
> @@ -715,11 +715,11 @@ struct ocfs2_la_recovery_item {
>   * NOTE: This function can and will sleep on recovery of other nodes
>   * during cluster locking, just like any other ocfs2 process.
>   */
> -void ocfs2_complete_recovery(struct work_struct *work)
> +void ocfs2_complete_recovery(kapi_work_struct_t *work)
>  {
>  	int ret;
>  	struct ocfs2_journal *journal =
> -		container_of(work, struct ocfs2_journal, j_recovery_work);
> +		kapi_container_of(work, struct ocfs2_journal, j_recovery_work);
>  	struct ocfs2_super *osb = journal->j_osb;
>  	struct ocfs2_dinode *la_dinode, *tl_dinode;
>  	struct ocfs2_la_recovery_item *item, *n;
> diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
> index 4b32e09..548d6af 100644
> --- a/fs/ocfs2/journal.h
> +++ b/fs/ocfs2/journal.h
> @@ -133,7 +133,7 @@ static inline void ocfs2_inode_set_new(struct ocfs2_super *osb,
>  }
>  
>  /* Exported only for the journal struct init code in super.c. Do not call. */
> -void ocfs2_complete_recovery(struct work_struct *work);
> +void ocfs2_complete_recovery(kapi_work_struct_t *work);
>  
>  /*
>   *  Journal Control:
> diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
> index 0e2a1b4..a8f90a2 100644
> --- a/fs/ocfs2/super.c
> +++ b/fs/ocfs2/super.c
> @@ -1465,7 +1465,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
>  	spin_lock_init(&journal->j_lock);
>  	journal->j_trans_id = (unsigned long) 1;
>  	INIT_LIST_HEAD(&journal->j_la_cleanups);
> -	INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery);
> +	KAPI_INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery, journal);
>  	journal->j_state = OCFS2_JOURNAL_FREE;
>  
>  	/* get some pseudo constants for clustersize bits */
> diff --git a/kapi-compat/include/workqueue.h b/kapi-compat/include/workqueue.h
> new file mode 100644
> index 0000000..26dfbdf
> --- /dev/null
> +++ b/kapi-compat/include/workqueue.h
> @@ -0,0 +1,17 @@
> +#ifndef KAPI_WORKQUEUE_H
> +#define KAPI_WORKQUEUE_H
> +
> +#ifndef DELAYED_WORK_DEFINED
> +# define delayed_work				work_struct
> +typedef void kapi_work_struct_t;
> +# define kapi_container_of(a, b, c)		(a)
> +# define KAPI_INIT_WORK(a, b, c)		INIT_WORK(a, b, c)
> +# define KAPI_INIT_DELAYED_WORK(a, b, c)	INIT_WORK(a, b, c)
> +#else
> +typedef struct work_struct kapi_work_struct_t;
> +# define kapi_container_of(a, b, c)		container_of(a, b, c)
> +# define KAPI_INIT_WORK(a, b, c)		INIT_WORK(a, b)
> +# define KAPI_INIT_DELAYED_WORK(a, b, c)	INIT_DELAYED_WORK(a, b)
> +#endif
> +
> +#endif
> -- 
> 1.5.2.5
> 
> 
> _______________________________________________
> Ocfs2-devel mailing list
> Ocfs2-devel at oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-devel

-- 

"Only a life lived for others is a life worth while."
							-Albert Einstein  

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127



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