diff options
| -rw-r--r-- | fs/dlm/lock.h | 2 | ||||
| -rw-r--r-- | fs/dlm/user.c | 28 | ||||
| -rw-r--r-- | include/linux/dlm_device.h | 9 |
3 files changed, 38 insertions, 1 deletions
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h index 0843a3073ec..64fc4ec4066 100644 --- a/fs/dlm/lock.h +++ b/fs/dlm/lock.h @@ -41,6 +41,8 @@ int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, uint32_t flags, uint32_t lkid, char *lvb_in); int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, uint32_t flags, uint32_t lkid); +int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, + int nodeid, int pid); void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); static inline int is_master(struct dlm_rsb *r) diff --git a/fs/dlm/user.c b/fs/dlm/user.c index c978c67b1ef..3e746a6ebac 100644 --- a/fs/dlm/user.c +++ b/fs/dlm/user.c @@ -56,6 +56,7 @@ struct dlm_write_request32 { union { struct dlm_lock_params32 lock; struct dlm_lspace_params lspace; + struct dlm_purge_params purge; } i; }; @@ -92,6 +93,9 @@ static void compat_input(struct dlm_write_request *kb, kb->i.lspace.flags = kb32->i.lspace.flags; kb->i.lspace.minor = kb32->i.lspace.minor; strcpy(kb->i.lspace.name, kb32->i.lspace.name); + } else if (kb->cmd == DLM_USER_PURGE) { + kb->i.purge.nodeid = kb32->i.purge.nodeid; + kb->i.purge.pid = kb32->i.purge.pid; } else { kb->i.lock.mode = kb32->i.lock.mode; kb->i.lock.namelen = kb32->i.lock.namelen; @@ -320,6 +324,22 @@ fail: return error; } +static int device_user_purge(struct dlm_user_proc *proc, + struct dlm_purge_params *params) +{ + struct dlm_ls *ls; + int error; + + ls = dlm_find_lockspace_local(proc->lockspace); + if (!ls) + return -ENOENT; + + error = dlm_user_purge(ls, proc, params->nodeid, params->pid); + + dlm_put_lockspace(ls); + return error; +} + static int device_create_lockspace(struct dlm_lspace_params *params) { dlm_lockspace_t *lockspace; @@ -522,6 +542,14 @@ static ssize_t device_write(struct file *file, const char __user *buf, error = device_remove_lockspace(&kbuf->i.lspace); break; + case DLM_USER_PURGE: + if (!proc) { + log_print("no locking on control device"); + goto out_sig; + } + error = device_user_purge(proc, &kbuf->i.purge); + break; + default: log_print("Unknown command passed to DLM device : %d\n", kbuf->cmd); diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h index 2a2dd189b9f..c2735cab2eb 100644 --- a/include/linux/dlm_device.h +++ b/include/linux/dlm_device.h @@ -19,7 +19,7 @@ /* Version of the device interface */ #define DLM_DEVICE_VERSION_MAJOR 5 -#define DLM_DEVICE_VERSION_MINOR 0 +#define DLM_DEVICE_VERSION_MINOR 1 #define DLM_DEVICE_VERSION_PATCH 0 /* struct passed to the lock write */ @@ -44,6 +44,11 @@ struct dlm_lspace_params { char name[0]; }; +struct dlm_purge_params { + __u32 nodeid; + __u32 pid; +}; + struct dlm_write_request { __u32 version[3]; __u8 cmd; @@ -53,6 +58,7 @@ struct dlm_write_request { union { struct dlm_lock_params lock; struct dlm_lspace_params lspace; + struct dlm_purge_params purge; } i; }; @@ -76,6 +82,7 @@ struct dlm_lock_result { #define DLM_USER_QUERY 3 #define DLM_USER_CREATE_LOCKSPACE 4 #define DLM_USER_REMOVE_LOCKSPACE 5 +#define DLM_USER_PURGE 6 /* Arbitrary length restriction */ #define MAX_LS_NAME_LEN 64 |