From 9d8df6aa9b1ca74127b11537d91de492dbea666a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 21 May 2008 06:32:11 +0100 Subject: ocfs2 endianness fixes Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- fs/ocfs2/alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 41f84c92094f..10bfb466e068 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -2788,7 +2788,7 @@ static int ocfs2_merge_rec_right(struct inode *inode, BUG_ON(index >= le16_to_cpu(el->l_next_free_rec)); left_rec = &el->l_recs[index]; - if (index == le16_to_cpu(el->l_next_free_rec - 1) && + if (index == le16_to_cpu(el->l_next_free_rec) - 1 && le16_to_cpu(el->l_next_free_rec) == le16_to_cpu(el->l_count)) { /* we meet with a cross extent block merge. */ ret = ocfs2_get_right_path(inode, left_path, &right_path); @@ -2802,7 +2802,7 @@ static int ocfs2_merge_rec_right(struct inode *inode, BUG_ON(next_free <= 0); right_rec = &right_el->l_recs[0]; if (ocfs2_is_empty_extent(right_rec)) { - BUG_ON(le16_to_cpu(next_free) <= 1); + BUG_ON(next_free <= 1); right_rec = &right_el->l_recs[1]; } -- cgit v1.2.3 From a12630b186d56a77d17c9b34c82b88dda4337ed7 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Fri, 9 May 2008 18:49:29 -0700 Subject: ocfs2: Rename 'user_stack' plugin structure to 'ocfs2_user_plugin' The static structure describing the userspace cluster plugin for ocfs2 was named 'user_stack', which is a real pain when people are grep(1)ing the tree for the program stack object 'user_stack'. Change the name to something distinct and namespaced. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/stack_user.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index b503772cd0ec..6b97d11f6bf8 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -61,7 +61,7 @@ * negotiated by the client. The client negotiates based on the maximum * version advertised in /sys/fs/ocfs2/max_locking_protocol. The major * number from the "SETV" message must match - * user_stack.sp_proto->lp_max_version.pv_major, and the minor number + * ocfs2_user_plugin.sp_proto->lp_max_version.pv_major, and the minor number * must be less than or equal to ...->lp_max_version.pv_minor. * * Once this information has been set, mounts will be allowed. From this @@ -153,7 +153,7 @@ union ocfs2_control_message { struct ocfs2_control_message_down u_down; }; -static struct ocfs2_stack_plugin user_stack; +static struct ocfs2_stack_plugin ocfs2_user_plugin; static atomic_t ocfs2_control_opened; static int ocfs2_control_this_node = -1; @@ -399,7 +399,7 @@ static int ocfs2_control_do_setversion_msg(struct file *file, char *ptr = NULL; struct ocfs2_control_private *p = file->private_data; struct ocfs2_protocol_version *max = - &user_stack.sp_proto->lp_max_version; + &ocfs2_user_plugin.sp_proto->lp_max_version; if (ocfs2_control_get_handshake_state(file) != OCFS2_CONTROL_HANDSHAKE_PROTOCOL) @@ -680,7 +680,7 @@ static void fsdlm_lock_ast_wrapper(void *astarg) struct dlm_lksb *lksb = fsdlm_astarg_to_lksb(astarg); int status = lksb->sb_status; - BUG_ON(user_stack.sp_proto == NULL); + BUG_ON(ocfs2_user_plugin.sp_proto == NULL); /* * For now we're punting on the issue of other non-standard errors @@ -693,16 +693,16 @@ static void fsdlm_lock_ast_wrapper(void *astarg) */ if (status == -DLM_EUNLOCK || status == -DLM_ECANCEL) - user_stack.sp_proto->lp_unlock_ast(astarg, 0); + ocfs2_user_plugin.sp_proto->lp_unlock_ast(astarg, 0); else - user_stack.sp_proto->lp_lock_ast(astarg); + ocfs2_user_plugin.sp_proto->lp_lock_ast(astarg); } static void fsdlm_blocking_ast_wrapper(void *astarg, int level) { - BUG_ON(user_stack.sp_proto == NULL); + BUG_ON(ocfs2_user_plugin.sp_proto == NULL); - user_stack.sp_proto->lp_blocking_ast(astarg, level); + ocfs2_user_plugin.sp_proto->lp_blocking_ast(astarg, level); } static int user_dlm_lock(struct ocfs2_cluster_connection *conn, @@ -838,7 +838,7 @@ static int user_cluster_this_node(unsigned int *this_node) return 0; } -static struct ocfs2_stack_operations user_stack_ops = { +static struct ocfs2_stack_operations ocfs2_user_plugin_ops = { .connect = user_cluster_connect, .disconnect = user_cluster_disconnect, .this_node = user_cluster_this_node, @@ -849,20 +849,20 @@ static struct ocfs2_stack_operations user_stack_ops = { .dump_lksb = user_dlm_dump_lksb, }; -static struct ocfs2_stack_plugin user_stack = { +static struct ocfs2_stack_plugin ocfs2_user_plugin = { .sp_name = "user", - .sp_ops = &user_stack_ops, + .sp_ops = &ocfs2_user_plugin_ops, .sp_owner = THIS_MODULE, }; -static int __init user_stack_init(void) +static int __init ocfs2_user_plugin_init(void) { int rc; rc = ocfs2_control_init(); if (!rc) { - rc = ocfs2_stack_glue_register(&user_stack); + rc = ocfs2_stack_glue_register(&ocfs2_user_plugin); if (rc) ocfs2_control_exit(); } @@ -870,14 +870,14 @@ static int __init user_stack_init(void) return rc; } -static void __exit user_stack_exit(void) +static void __exit ocfs2_user_plugin_exit(void) { - ocfs2_stack_glue_unregister(&user_stack); + ocfs2_stack_glue_unregister(&ocfs2_user_plugin); ocfs2_control_exit(); } MODULE_AUTHOR("Oracle"); MODULE_DESCRIPTION("ocfs2 driver for userspace cluster stacks"); MODULE_LICENSE("GPL"); -module_init(user_stack_init); -module_exit(user_stack_exit); +module_init(ocfs2_user_plugin_init); +module_exit(ocfs2_user_plugin_exit); -- cgit v1.2.3 From 271d772d02507c7541d5e6b4938ed2380e59a39a Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Mon, 12 May 2008 18:31:35 -0700 Subject: [PATCH 1/3] ocfs2/net: Silence build warnings This patch silences the build warnings concerning o2net_debugfs_init() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran Signed-off-by: Mark Fasheh --- fs/ocfs2/cluster/tcp.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h index a705d5d19036..fd6179eb26d4 100644 --- a/fs/ocfs2/cluster/tcp.h +++ b/fs/ocfs2/cluster/tcp.h @@ -128,23 +128,23 @@ void o2net_debug_del_nst(struct o2net_send_tracking *nst); void o2net_debug_add_sc(struct o2net_sock_container *sc); void o2net_debug_del_sc(struct o2net_sock_container *sc); #else -static int o2net_debugfs_init(void) +static inline int o2net_debugfs_init(void) { return 0; } -static void o2net_debugfs_exit(void) +static inline void o2net_debugfs_exit(void) { } -static void o2net_debug_add_nst(struct o2net_send_tracking *nst) +static inline void o2net_debug_add_nst(struct o2net_send_tracking *nst) { } -static void o2net_debug_del_nst(struct o2net_send_tracking *nst) +static inline void o2net_debug_del_nst(struct o2net_send_tracking *nst) { } -static void o2net_debug_add_sc(struct o2net_sock_container *sc) +static inline void o2net_debug_add_sc(struct o2net_sock_container *sc) { } -static void o2net_debug_del_sc(struct o2net_sock_container *sc) +static inline void o2net_debug_del_sc(struct o2net_sock_container *sc) { } #endif /* CONFIG_DEBUG_FS */ -- cgit v1.2.3 From 959040c37a8cae8117907d4aed87f1b01ff1ea19 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Mon, 12 May 2008 18:31:36 -0700 Subject: [PATCH 2/3] ocfs2/dlm: Silence build warnings This patch silences the build warnings concerning dlm_debug_init() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmdebug.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h index d34a62a3a625..8c686d22f9c7 100644 --- a/fs/ocfs2/dlm/dlmdebug.h +++ b/fs/ocfs2/dlm/dlmdebug.h @@ -60,25 +60,25 @@ void dlm_destroy_debugfs_root(void); #else -static int dlm_debug_init(struct dlm_ctxt *dlm) +static inline int dlm_debug_init(struct dlm_ctxt *dlm) { return 0; } -static void dlm_debug_shutdown(struct dlm_ctxt *dlm) +static inline void dlm_debug_shutdown(struct dlm_ctxt *dlm) { } -static int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm) +static inline int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm) { return 0; } -static void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm) +static inline void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm) { } -static int dlm_create_debugfs_root(void) +static inline int dlm_create_debugfs_root(void) { return 0; } -static void dlm_destroy_debugfs_root(void) +static inline void dlm_destroy_debugfs_root(void) { } -- cgit v1.2.3 From 0f475b2abed6cbccee1da20a0bef2895eb2a0edd Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Mon, 12 May 2008 18:31:37 -0700 Subject: [PATCH 3/3] ocfs2/net: Silence build warnings This patch silences the build warnings concerning o2net_init_nst() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran Signed-off-by: Mark Fasheh --- fs/ocfs2/cluster/tcp.c | 28 +++++++++------------------- fs/ocfs2/cluster/tcp_internal.h | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 19 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 1e44ad14881a..a27d61581bd6 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -142,53 +142,43 @@ 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); -static void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype, - u32 msgkey, struct task_struct *task, u8 node) -{ #ifdef CONFIG_DEBUG_FS +void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype, + u32 msgkey, struct task_struct *task, u8 node) +{ INIT_LIST_HEAD(&nst->st_net_debug_item); nst->st_task = task; nst->st_msg_type = msgtype; nst->st_msg_key = msgkey; nst->st_node = node; -#endif } -static void o2net_set_nst_sock_time(struct o2net_send_tracking *nst) +void o2net_set_nst_sock_time(struct o2net_send_tracking *nst) { -#ifdef CONFIG_DEBUG_FS do_gettimeofday(&nst->st_sock_time); -#endif } -static void o2net_set_nst_send_time(struct o2net_send_tracking *nst) +void o2net_set_nst_send_time(struct o2net_send_tracking *nst) { -#ifdef CONFIG_DEBUG_FS do_gettimeofday(&nst->st_send_time); -#endif } -static void o2net_set_nst_status_time(struct o2net_send_tracking *nst) +void o2net_set_nst_status_time(struct o2net_send_tracking *nst) { -#ifdef CONFIG_DEBUG_FS do_gettimeofday(&nst->st_status_time); -#endif } -static void o2net_set_nst_sock_container(struct o2net_send_tracking *nst, +void o2net_set_nst_sock_container(struct o2net_send_tracking *nst, struct o2net_sock_container *sc) { -#ifdef CONFIG_DEBUG_FS nst->st_sc = sc; -#endif } -static void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id) +void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id) { -#ifdef CONFIG_DEBUG_FS nst->st_id = msg_id; -#endif } +#endif /* CONFIG_DEBUG_FS */ static inline int o2net_reconnect_delay(void) { diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h index 8d58cfe410b1..18307ff81b77 100644 --- a/fs/ocfs2/cluster/tcp_internal.h +++ b/fs/ocfs2/cluster/tcp_internal.h @@ -224,10 +224,42 @@ struct o2net_send_tracking { struct timeval st_send_time; struct timeval st_status_time; }; + +void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype, + u32 msgkey, struct task_struct *task, u8 node); +void o2net_set_nst_sock_time(struct o2net_send_tracking *nst); +void o2net_set_nst_send_time(struct o2net_send_tracking *nst); +void o2net_set_nst_status_time(struct o2net_send_tracking *nst); +void o2net_set_nst_sock_container(struct o2net_send_tracking *nst, + struct o2net_sock_container *sc); +void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id); + #else struct o2net_send_tracking { u32 dummy; }; + +static inline void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype, + u32 msgkey, struct task_struct *task, u8 node) +{ +} +static inline void o2net_set_nst_sock_time(struct o2net_send_tracking *nst) +{ +} +static inline void o2net_set_nst_send_time(struct o2net_send_tracking *nst) +{ +} +static inline void o2net_set_nst_status_time(struct o2net_send_tracking *nst) +{ +} +static inline void o2net_set_nst_sock_container(struct o2net_send_tracking *nst, + struct o2net_sock_container *sc) +{ +} +static inline void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, + u32 msg_id) +{ +} #endif /* CONFIG_DEBUG_FS */ #endif /* O2CLUSTER_TCP_INTERNAL_H */ -- cgit v1.2.3 From 3878f110f71a0971ff7acc15dd6db711b6ef37c6 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Fri, 30 May 2008 15:30:49 -0700 Subject: ocfs2: Move the hb_ctl_path sysctl into the stack glue. ocfs2 needs to call out to the hb_ctl program at unmount for all cluster stacks. The first step is to move the hb_ctl_path sysctl out of the o2cb code and into the generic stack glue. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/cluster/nodemanager.c | 74 +----------------------------------- fs/ocfs2/cluster/nodemanager.h | 4 -- fs/ocfs2/stack_o2cb.c | 2 +- fs/ocfs2/stackglue.c | 85 ++++++++++++++++++++++++++++++++++++++++++ fs/ocfs2/stackglue.h | 2 + 5 files changed, 89 insertions(+), 78 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c index cf9401e8cd0b..cfdb08b484ed 100644 --- a/fs/ocfs2/cluster/nodemanager.c +++ b/fs/ocfs2/cluster/nodemanager.c @@ -21,7 +21,6 @@ #include #include -#include #include #include "tcp.h" @@ -36,65 +35,6 @@ * cluster references throughout where nodes are looked up */ struct o2nm_cluster *o2nm_single_cluster = NULL; -#define OCFS2_MAX_HB_CTL_PATH 256 -static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl"; - -static ctl_table ocfs2_nm_table[] = { - { - .ctl_name = 1, - .procname = "hb_ctl_path", - .data = ocfs2_hb_ctl_path, - .maxlen = OCFS2_MAX_HB_CTL_PATH, - .mode = 0644, - .proc_handler = &proc_dostring, - .strategy = &sysctl_string, - }, - { .ctl_name = 0 } -}; - -static ctl_table ocfs2_mod_table[] = { - { - .ctl_name = FS_OCFS2_NM, - .procname = "nm", - .data = NULL, - .maxlen = 0, - .mode = 0555, - .child = ocfs2_nm_table - }, - { .ctl_name = 0} -}; - -static ctl_table ocfs2_kern_table[] = { - { - .ctl_name = FS_OCFS2, - .procname = "ocfs2", - .data = NULL, - .maxlen = 0, - .mode = 0555, - .child = ocfs2_mod_table - }, - { .ctl_name = 0} -}; - -static ctl_table ocfs2_root_table[] = { - { - .ctl_name = CTL_FS, - .procname = "fs", - .data = NULL, - .maxlen = 0, - .mode = 0555, - .child = ocfs2_kern_table - }, - { .ctl_name = 0 } -}; - -static struct ctl_table_header *ocfs2_table_header = NULL; - -const char *o2nm_get_hb_ctl_path(void) -{ - return ocfs2_hb_ctl_path; -} -EXPORT_SYMBOL_GPL(o2nm_get_hb_ctl_path); struct o2nm_node *o2nm_get_node_by_num(u8 node_num) { @@ -941,9 +881,6 @@ void o2nm_undepend_this_node(void) static void __exit exit_o2nm(void) { - if (ocfs2_table_header) - unregister_sysctl_table(ocfs2_table_header); - /* XXX sync with hb callbacks and shut down hb? */ o2net_unregister_hb_callbacks(); configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys); @@ -964,16 +901,9 @@ static int __init init_o2nm(void) if (ret) goto out; - ocfs2_table_header = register_sysctl_table(ocfs2_root_table); - if (!ocfs2_table_header) { - printk(KERN_ERR "nodemanager: unable to register sysctl\n"); - ret = -ENOMEM; /* or something. */ - goto out_o2net; - } - ret = o2net_register_hb_callbacks(); if (ret) - goto out_sysctl; + goto out_o2net; config_group_init(&o2nm_cluster_group.cs_subsys.su_group); mutex_init(&o2nm_cluster_group.cs_subsys.su_mutex); @@ -990,8 +920,6 @@ static int __init init_o2nm(void) configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys); out_callbacks: o2net_unregister_hb_callbacks(); -out_sysctl: - unregister_sysctl_table(ocfs2_table_header); out_o2net: o2net_exit(); out: diff --git a/fs/ocfs2/cluster/nodemanager.h b/fs/ocfs2/cluster/nodemanager.h index 7c860361b8dd..c992ea0da4ad 100644 --- a/fs/ocfs2/cluster/nodemanager.h +++ b/fs/ocfs2/cluster/nodemanager.h @@ -33,10 +33,6 @@ #include #include -#define FS_OCFS2_NM 1 - -const char *o2nm_get_hb_ctl_path(void); - struct o2nm_node { spinlock_t nd_lock; struct config_item nd_item; diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index bbd1667aa7d3..fb26a7c69c47 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -338,7 +338,7 @@ static void o2hb_stop(const char *group) int ret; char *argv[5], *envp[3]; - argv[0] = (char *)o2nm_get_hb_ctl_path(); + argv[0] = (char *)ocfs2_get_hb_ctl_path(); argv[1] = "-K"; argv[2] = "-u"; argv[3] = (char *)group; diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 119f60cea9cc..fb9b8e0db260 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "ocfs2_fs.h" @@ -548,10 +549,92 @@ error: return ret; } +/* + * Sysctl bits + * + * The sysctl lives at /proc/sys/fs/ocfs2/nm/hb_ctl_path. The 'nm' doesn't + * make as much sense in a multiple cluster stack world, but it's safer + * and easier to preserve the name. + */ + +#define FS_OCFS2_NM 1 + +#define OCFS2_MAX_HB_CTL_PATH 256 +static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl"; + +static ctl_table ocfs2_nm_table[] = { + { + .ctl_name = 1, + .procname = "hb_ctl_path", + .data = ocfs2_hb_ctl_path, + .maxlen = OCFS2_MAX_HB_CTL_PATH, + .mode = 0644, + .proc_handler = &proc_dostring, + .strategy = &sysctl_string, + }, + { .ctl_name = 0 } +}; + +static ctl_table ocfs2_mod_table[] = { + { + .ctl_name = FS_OCFS2_NM, + .procname = "nm", + .data = NULL, + .maxlen = 0, + .mode = 0555, + .child = ocfs2_nm_table + }, + { .ctl_name = 0} +}; + +static ctl_table ocfs2_kern_table[] = { + { + .ctl_name = FS_OCFS2, + .procname = "ocfs2", + .data = NULL, + .maxlen = 0, + .mode = 0555, + .child = ocfs2_mod_table + }, + { .ctl_name = 0} +}; + +static ctl_table ocfs2_root_table[] = { + { + .ctl_name = CTL_FS, + .procname = "fs", + .data = NULL, + .maxlen = 0, + .mode = 0555, + .child = ocfs2_kern_table + }, + { .ctl_name = 0 } +}; + +static struct ctl_table_header *ocfs2_table_header = NULL; + +const char *ocfs2_get_hb_ctl_path(void) +{ + return ocfs2_hb_ctl_path; +} +EXPORT_SYMBOL_GPL(ocfs2_get_hb_ctl_path); + + +/* + * Initialization + */ + static int __init ocfs2_stack_glue_init(void) { strcpy(cluster_stack_name, OCFS2_STACK_PLUGIN_O2CB); + ocfs2_table_header = register_sysctl_table(ocfs2_root_table); + if (!ocfs2_table_header) { + printk(KERN_ERR + "ocfs2 stack glue: unable to register sysctl\n"); + return -ENOMEM; /* or something. */ + } + return ocfs2_sysfs_init(); } @@ -559,6 +642,8 @@ static void __exit ocfs2_stack_glue_exit(void) { lproto = NULL; ocfs2_sysfs_exit(); + if (ocfs2_table_header) + unregister_sysctl_table(ocfs2_table_header); } MODULE_AUTHOR("Oracle"); diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index 005e4f170e0f..c9fb01ab6347 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -258,4 +258,6 @@ void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto) /* Used by stack plugins */ int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin); void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin); +const char *ocfs2_get_hb_ctl_path(void); + #endif /* STACKGLUE_H */ -- cgit v1.2.3 From 9f9a99f4eccc64650e932090cff0ebd07b81e334 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Fri, 30 May 2008 15:43:58 -0700 Subject: ocfs2: Move the call of ocfs2_hb_ctl into the stack glue. Take o2hb_stop() out of the o2cb code and make it part of the generic stack glue as ocfs2_leave_group(). This also allows us to remove the ocfs2_get_hb_ctl_path() function - everything to do with hb_ctl is now part of stackglue.c. o2cb no longer needs a ->hangup() function. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/stack_o2cb.c | 38 -------------------------------------- fs/ocfs2/stackglue.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- fs/ocfs2/stackglue.h | 1 - 3 files changed, 40 insertions(+), 48 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index fb26a7c69c47..765ade5ee84a 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -333,43 +333,6 @@ static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn, return 0; } -static void o2hb_stop(const char *group) -{ - int ret; - char *argv[5], *envp[3]; - - argv[0] = (char *)ocfs2_get_hb_ctl_path(); - argv[1] = "-K"; - argv[2] = "-u"; - argv[3] = (char *)group; - argv[4] = NULL; - - mlog(0, "Run: %s %s %s %s\n", argv[0], argv[1], argv[2], argv[3]); - - /* minimal command environment taken from cpu_run_sbin_hotplug */ - envp[0] = "HOME=/"; - envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; - envp[2] = NULL; - - ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); - if (ret < 0) - mlog_errno(ret); -} - -/* - * Hangup is a hack for tools compatibility. Older ocfs2-tools software - * expects the filesystem to call "ocfs2_hb_ctl" during unmount. This - * happens regardless of whether the DLM got started, so we can't do it - * in ocfs2_cluster_disconnect(). We bring the o2hb_stop() function into - * the glue and provide a "hangup" API for super.c to call. - * - * Other stacks will eventually provide a NULL ->hangup() pointer. - */ -static void o2cb_cluster_hangup(const char *group, int grouplen) -{ - o2hb_stop(group); -} - static int o2cb_cluster_this_node(unsigned int *node) { int node_num; @@ -388,7 +351,6 @@ static int o2cb_cluster_this_node(unsigned int *node) static struct ocfs2_stack_operations o2cb_stack_ops = { .connect = o2cb_cluster_connect, .disconnect = o2cb_cluster_disconnect, - .hangup = o2cb_cluster_hangup, .this_node = o2cb_cluster_this_node, .dlm_lock = o2cb_dlm_lock, .dlm_unlock = o2cb_dlm_unlock, diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index fb9b8e0db260..5f78ff4c76c7 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -34,11 +34,13 @@ #define OCFS2_STACK_PLUGIN_O2CB "o2cb" #define OCFS2_STACK_PLUGIN_USER "user" +#define OCFS2_MAX_HB_CTL_PATH 256 static struct ocfs2_locking_protocol *lproto; static DEFINE_SPINLOCK(ocfs2_stack_lock); static LIST_HEAD(ocfs2_stack_list); static char cluster_stack_name[OCFS2_STACK_LABEL_LEN + 1]; +static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl"; /* * The stack currently in use. If not null, active_stack->sp_count > 0, @@ -363,6 +365,42 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn, } EXPORT_SYMBOL_GPL(ocfs2_cluster_disconnect); +/* + * Leave the group for this filesystem. This is executed by a userspace + * program (stored in ocfs2_hb_ctl_path). + */ +static void ocfs2_leave_group(const char *group) +{ + int ret; + char *argv[5], *envp[3]; + + argv[0] = ocfs2_hb_ctl_path; + argv[1] = "-K"; + argv[2] = "-u"; + argv[3] = (char *)group; + argv[4] = NULL; + + /* minimal command environment taken from cpu_run_sbin_hotplug */ + envp[0] = "HOME=/"; + envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; + envp[2] = NULL; + + ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); + if (ret < 0) { + printk(KERN_ERR + "ocfs2: Error %d running user helper " + "\"%s %s %s %s\"\n", + ret, argv[0], argv[1], argv[2], argv[3]); + } +} + +/* + * Hangup is a required post-umount. ocfs2-tools software expects the + * filesystem to call "ocfs2_hb_ctl" during unmount. This happens + * regardless of whether the DLM got started, so we can't do it + * in ocfs2_cluster_disconnect(). The ocfs2_leave_group() function does + * the actual work. + */ void ocfs2_cluster_hangup(const char *group, int grouplen) { BUG_ON(group == NULL); @@ -371,6 +409,8 @@ void ocfs2_cluster_hangup(const char *group, int grouplen) if (active_stack->sp_ops->hangup) active_stack->sp_ops->hangup(group, grouplen); + ocfs2_leave_group(group); + /* cluster_disconnect() was called with hangup_pending==1 */ ocfs2_stack_driver_put(); } @@ -559,9 +599,6 @@ error: #define FS_OCFS2_NM 1 -#define OCFS2_MAX_HB_CTL_PATH 256 -static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl"; - static ctl_table ocfs2_nm_table[] = { { .ctl_name = 1, @@ -613,12 +650,6 @@ static ctl_table ocfs2_root_table[] = { static struct ctl_table_header *ocfs2_table_header = NULL; -const char *ocfs2_get_hb_ctl_path(void) -{ - return ocfs2_hb_ctl_path; -} -EXPORT_SYMBOL_GPL(ocfs2_get_hb_ctl_path); - /* * Initialization diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index c9fb01ab6347..fe3fd2a12821 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -258,6 +258,5 @@ void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto) /* Used by stack plugins */ int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin); void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin); -const char *ocfs2_get_hb_ctl_path(void); #endif /* STACKGLUE_H */ -- cgit v1.2.3 From 2c39450b39880e162b3eb339672314101f58ee1a Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Fri, 30 May 2008 15:58:26 -0700 Subject: ocfs2: Remove ->hangup() from stack glue operations. The ->hangup() call was only used to execute ocfs2_hb_ctl. Now that the generic stack glue code handles this, the underlying stack drivers don't need to know about it. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/stack_o2cb.c | 3 +-- fs/ocfs2/stack_user.c | 3 +-- fs/ocfs2/stackglue.c | 5 +---- fs/ocfs2/stackglue.h | 18 +++--------------- 4 files changed, 6 insertions(+), 23 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index 765ade5ee84a..fcd120f1493a 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -317,8 +317,7 @@ out: return rc; } -static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn, - int hangup_pending) +static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn) { struct dlm_ctxt *dlm = conn->cc_lockspace; struct o2dlm_private *priv = conn->cc_private; diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index 6b97d11f6bf8..c021280dd462 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -816,8 +816,7 @@ out: return rc; } -static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn, - int hangup_pending) +static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn) { dlm_release_lockspace(conn->cc_lockspace, 2); conn->cc_lockspace = NULL; diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 5f78ff4c76c7..10e149ae5e3a 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -352,7 +352,7 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn, BUG_ON(conn == NULL); - ret = active_stack->sp_ops->disconnect(conn, hangup_pending); + ret = active_stack->sp_ops->disconnect(conn); /* XXX Should we free it anyway? */ if (!ret) { @@ -406,9 +406,6 @@ void ocfs2_cluster_hangup(const char *group, int grouplen) BUG_ON(group == NULL); BUG_ON(group[grouplen] != '\0'); - if (active_stack->sp_ops->hangup) - active_stack->sp_ops->hangup(group, grouplen); - ocfs2_leave_group(group); /* cluster_disconnect() was called with hangup_pending==1 */ diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index fe3fd2a12821..db56281dd1be 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -134,22 +134,10 @@ struct ocfs2_stack_operations { * be freed. Thus, a stack must not return from ->disconnect() * until it will no longer reference the conn pointer. * - * If hangup_pending is zero, ocfs2_cluster_disconnect() will also - * be dropping the reference on the module. + * Once this call returns, the stack glue will be dropping this + * connection's reference on the module. */ - int (*disconnect)(struct ocfs2_cluster_connection *conn, - int hangup_pending); - - /* - * ocfs2_cluster_hangup() exists for compatibility with older - * ocfs2 tools. Only the classic stack really needs it. As such - * ->hangup() is not required of all stacks. See the comment by - * ocfs2_cluster_hangup() for more details. - * - * Note that ocfs2_cluster_hangup() can only be called if - * hangup_pending was passed to ocfs2_cluster_disconnect(). - */ - void (*hangup)(const char *group, int grouplen); + int (*disconnect)(struct ocfs2_cluster_connection *conn); /* * ->this_node() returns the cluster's unique identifier for the -- cgit v1.2.3 From 18c6ac383f3e46cfce08d0bf972705852a4e1268 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Mon, 7 Jul 2008 10:06:29 -0700 Subject: [PATCH] ocfs2/dlm: Fixes oops in dlm_new_lockres() Patch fixes a race that can result in an oops while adding a lockres to the dlm lockres tracking list. Bug introduced by mainline commit 29576f8bb54045be944ba809d4fca1ad77c94165. Signed-off-by: Sunil Mushran Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmmaster.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index efc015c6128a..44f87caf3683 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -606,7 +606,9 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm, res->last_used = 0; + spin_lock(&dlm->spinlock); list_add_tail(&res->tracking, &dlm->tracking_list); + spin_unlock(&dlm->spinlock); memset(res->lvb, 0, DLM_LVB_LEN); memset(res->refmap, 0, sizeof(res->refmap)); -- cgit v1.2.3 From e988cf1cfed4ed80bf40528e655fe18bed6a38b6 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Thu, 10 Jul 2008 09:25:39 -0700 Subject: ocfs2: Fix flags in ocfs2_file_lock The stack-glue merge changed the way we use flags in dlmglue in that we now use the fs/dlm equivalents. Unfortunately, a merge error left the new flock code only partially updated. This took a while to show up though, because the lock level constants are actually identical between o2dlm and fs/dlm. The *_CONVERT and *_NOQUEUE flags have different values though, which is eventually causing a crash in flags_to_o2dlm(). Signed-off-by: Mark Fasheh --- fs/ocfs2/dlmglue.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 394d25a131a5..80e20d9f2780 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -1554,8 +1554,8 @@ out: */ int ocfs2_file_lock(struct file *file, int ex, int trylock) { - int ret, level = ex ? LKM_EXMODE : LKM_PRMODE; - unsigned int lkm_flags = trylock ? LKM_NOQUEUE : 0; + int ret, level = ex ? DLM_LOCK_EX : DLM_LOCK_PR; + unsigned int lkm_flags = trylock ? DLM_LKF_NOQUEUE : 0; unsigned long flags; struct ocfs2_file_private *fp = file->private_data; struct ocfs2_lock_res *lockres = &fp->fp_flock; @@ -1582,7 +1582,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock) * Get the lock at NLMODE to start - that way we * can cancel the upconvert request if need be. */ - ret = ocfs2_lock_create(osb, lockres, LKM_NLMODE, 0); + ret = ocfs2_lock_create(osb, lockres, DLM_LOCK_NL, 0); if (ret < 0) { mlog_errno(ret); goto out; @@ -1597,7 +1597,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock) } lockres->l_action = OCFS2_AST_CONVERT; - lkm_flags |= LKM_CONVERT; + lkm_flags |= DLM_LKF_CONVERT; lockres->l_requested = level; lockres_or_flags(lockres, OCFS2_LOCK_BUSY); @@ -1664,7 +1664,7 @@ void ocfs2_file_unlock(struct file *file) if (!(lockres->l_flags & OCFS2_LOCK_ATTACHED)) return; - if (lockres->l_level == LKM_NLMODE) + if (lockres->l_level == DLM_LOCK_NL) return; mlog(0, "Unlock: \"%s\" flags: 0x%lx, level: %d, act: %d\n", @@ -1678,11 +1678,11 @@ void ocfs2_file_unlock(struct file *file) lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED); lockres->l_blocking = DLM_LOCK_EX; - gen = ocfs2_prepare_downconvert(lockres, LKM_NLMODE); + gen = ocfs2_prepare_downconvert(lockres, DLM_LOCK_NL); lockres_add_mask_waiter(lockres, &mw, OCFS2_LOCK_BUSY, 0); spin_unlock_irqrestore(&lockres->l_lock, flags); - ret = ocfs2_downconvert_lock(osb, lockres, LKM_NLMODE, 0, gen); + ret = ocfs2_downconvert_lock(osb, lockres, DLM_LOCK_NL, 0, gen); if (ret) { mlog_errno(ret); return; -- cgit v1.2.3