diff options
Diffstat (limited to 'fs/dlm/dlm_internal.h')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index 149106f2b80..db080de2a7e 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -35,6 +35,7 @@ #include <linux/kref.h> #include <linux/kernel.h> #include <linux/jhash.h> +#include <linux/miscdevice.h> #include <linux/mutex.h> #include <asm/semaphore.h> #include <asm/uaccess.h> @@ -68,6 +69,7 @@ struct dlm_mhandle; #define log_error(ls, fmt, args...) \ printk(KERN_ERR "dlm: %s: " fmt "\n", (ls)->ls_name , ##args) +#define DLM_LOG_DEBUG #ifdef DLM_LOG_DEBUG #define log_debug(ls, fmt, args...) log_error(ls, fmt, ##args) #else @@ -204,6 +206,9 @@ struct dlm_args { #define DLM_IFL_MSTCPY 0x00010000 #define DLM_IFL_RESEND 0x00020000 +#define DLM_IFL_DEAD 0x00040000 +#define DLM_IFL_USER 0x00000001 +#define DLM_IFL_ORPHAN 0x00000002 struct dlm_lkb { struct dlm_rsb *lkb_resource; /* the rsb */ @@ -231,6 +236,7 @@ struct dlm_lkb { struct list_head lkb_rsb_lookup; /* waiting for rsb lookup */ struct list_head lkb_wait_reply; /* waiting for remote reply */ struct list_head lkb_astqueue; /* need ast to be sent */ + struct list_head lkb_ownqueue; /* list of locks for a process */ char *lkb_lvbptr; struct dlm_lksb *lkb_lksb; /* caller's status block */ @@ -409,6 +415,7 @@ struct rcom_lock { struct dlm_ls { struct list_head ls_list; /* list of lockspaces */ + dlm_lockspace_t *ls_local_handle; uint32_t ls_global_id; /* global unique lockspace ID */ uint32_t ls_exflags; int ls_lvblen; @@ -444,6 +451,8 @@ struct dlm_ls { wait_queue_head_t ls_uevent_wait; /* user part of join/leave */ int ls_uevent_result; + struct miscdevice ls_device; + /* recovery related */ struct timer_list ls_timer; @@ -461,6 +470,7 @@ struct dlm_ls { spinlock_t ls_recover_list_lock; int ls_recover_list_count; wait_queue_head_t ls_wait_general; + struct mutex ls_clear_proc_locks; struct list_head ls_root_list; /* root resources */ struct rw_semaphore ls_root_sem; /* protect root_list */ @@ -475,6 +485,40 @@ struct dlm_ls { #define LSFL_RCOM_READY 3 #define LSFL_UEVENT_WAIT 4 +/* much of this is just saving user space pointers associated with the + lock that we pass back to the user lib with an ast */ + +struct dlm_user_args { + struct dlm_user_proc *proc; /* each process that opens the lockspace + device has private data + (dlm_user_proc) on the struct file, + the process's locks point back to it*/ + struct dlm_lksb lksb; + int old_mode; + int update_user_lvb; + struct dlm_lksb __user *user_lksb; + void __user *castparam; + void __user *castaddr; + void __user *bastparam; + void __user *bastaddr; +}; + +#define DLM_PROC_FLAGS_CLOSING 1 +#define DLM_PROC_FLAGS_COMPAT 2 + +/* locks list is kept so we can remove all a process's locks when it + exits (or orphan those that are persistent) */ + +struct dlm_user_proc { + dlm_lockspace_t *lockspace; + unsigned long flags; /* DLM_PROC_FLAGS */ + struct list_head asts; + spinlock_t asts_spin; + struct list_head locks; + spinlock_t locks_spin; + wait_queue_head_t wait; +}; + static inline int dlm_locking_stopped(struct dlm_ls *ls) { return !test_bit(LSFL_RUNNING, &ls->ls_flags); |