diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-22 13:44:23 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-22 13:44:23 -0700 |
commit | 03b883840c630c7b571690577809754739ac773f (patch) | |
tree | aeec0581accf5e19360205e21dd25a220b4a0e54 | |
parent | 0d07a15bdb5a4ea6271b6e874d307c48151ef546 (diff) | |
parent | c1c76743e98346eb052b707f0e054377a09441d1 (diff) | |
download | linux-03b883840c630c7b571690577809754739ac773f.tar.gz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: linux/{dlm,dlm_device}.h: cleanup for userspace
dlm: common max length definitions
dlm: move plock code from gfs2
dlm: recover nodes that are removed and re-added
dlm: save master info after failed no-queue request
dlm: make dlm_print_rsb() static
dlm: match signedness between dlm_config_info and cluster_set
-rw-r--r-- | fs/dlm/Makefile | 1 | ||||
-rw-r--r-- | fs/dlm/config.c | 50 | ||||
-rw-r--r-- | fs/dlm/config.h | 3 | ||||
-rw-r--r-- | fs/dlm/dlm_internal.h | 8 | ||||
-rw-r--r-- | fs/dlm/lock.c | 5 | ||||
-rw-r--r-- | fs/dlm/lock.h | 1 | ||||
-rw-r--r-- | fs/dlm/main.c | 7 | ||||
-rw-r--r-- | fs/dlm/member.c | 34 | ||||
-rw-r--r-- | fs/dlm/plock.c (renamed from fs/gfs2/locking/dlm/plock.c) | 169 | ||||
-rw-r--r-- | fs/dlm/recoverd.c | 1 | ||||
-rw-r--r-- | fs/gfs2/locking/dlm/Makefile | 2 | ||||
-rw-r--r-- | fs/gfs2/locking/dlm/lock_dlm.h | 12 | ||||
-rw-r--r-- | fs/gfs2/locking/dlm/main.c | 8 | ||||
-rw-r--r-- | fs/gfs2/locking/dlm/mount.c | 21 | ||||
-rw-r--r-- | include/linux/Kbuild | 2 | ||||
-rw-r--r-- | include/linux/dlm.h | 7 | ||||
-rw-r--r-- | include/linux/dlm_device.h | 11 | ||||
-rw-r--r-- | include/linux/dlm_plock.h | 50 | ||||
-rw-r--r-- | include/linux/dlmconstants.h | 4 | ||||
-rw-r--r-- | include/linux/lock_dlm_plock.h | 41 |
20 files changed, 276 insertions, 161 deletions
diff --git a/fs/dlm/Makefile b/fs/dlm/Makefile index d248e60951ba..ca1c9124c8ce 100644 --- a/fs/dlm/Makefile +++ b/fs/dlm/Makefile @@ -10,6 +10,7 @@ dlm-y := ast.o \ midcomms.o \ netlink.o \ lowcomms.o \ + plock.o \ rcom.o \ recover.o \ recoverd.o \ diff --git a/fs/dlm/config.c b/fs/dlm/config.c index c3ad1dff3b25..eac23bd288b2 100644 --- a/fs/dlm/config.c +++ b/fs/dlm/config.c @@ -114,7 +114,7 @@ struct cluster_attribute { }; static ssize_t cluster_set(struct cluster *cl, unsigned int *cl_field, - unsigned int *info_field, int check_zero, + int *info_field, int check_zero, const char *buf, size_t len) { unsigned int x; @@ -284,6 +284,7 @@ struct node { struct list_head list; /* space->members */ int nodeid; int weight; + int new; }; static struct configfs_group_operations clusters_ops = { @@ -565,6 +566,7 @@ static struct config_item *make_node(struct config_group *g, const char *name) config_item_init_type_name(&nd->item, name, &node_type); nd->nodeid = -1; nd->weight = 1; /* default weight of 1 if none is set */ + nd->new = 1; /* set to 0 once it's been read by dlm_nodeid_list() */ mutex_lock(&sp->members_lock); list_add(&nd->list, &sp->members); @@ -805,12 +807,13 @@ static void put_comm(struct comm *cm) } /* caller must free mem */ -int dlm_nodeid_list(char *lsname, int **ids_out) +int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out, + int **new_out, int *new_count_out) { struct space *sp; struct node *nd; - int i = 0, rv = 0; - int *ids; + int i = 0, rv = 0, ids_count = 0, new_count = 0; + int *ids, *new; sp = get_space(lsname); if (!sp) @@ -818,23 +821,50 @@ int dlm_nodeid_list(char *lsname, int **ids_out) mutex_lock(&sp->members_lock); if (!sp->members_count) { - rv = 0; + rv = -EINVAL; + printk(KERN_ERR "dlm: zero members_count\n"); goto out; } - ids = kcalloc(sp->members_count, sizeof(int), GFP_KERNEL); + ids_count = sp->members_count; + + ids = kcalloc(ids_count, sizeof(int), GFP_KERNEL); if (!ids) { rv = -ENOMEM; goto out; } - rv = sp->members_count; - list_for_each_entry(nd, &sp->members, list) + list_for_each_entry(nd, &sp->members, list) { ids[i++] = nd->nodeid; + if (nd->new) + new_count++; + } + + if (ids_count != i) + printk(KERN_ERR "dlm: bad nodeid count %d %d\n", ids_count, i); + + if (!new_count) + goto out_ids; + + new = kcalloc(new_count, sizeof(int), GFP_KERNEL); + if (!new) { + kfree(ids); + rv = -ENOMEM; + goto out; + } - if (rv != i) - printk("bad nodeid count %d %d\n", rv, i); + i = 0; + list_for_each_entry(nd, &sp->members, list) { + if (nd->new) { + new[i++] = nd->nodeid; + nd->new = 0; + } + } + *new_count_out = new_count; + *new_out = new; + out_ids: + *ids_count_out = ids_count; *ids_out = ids; out: mutex_unlock(&sp->members_lock); diff --git a/fs/dlm/config.h b/fs/dlm/config.h index a3170fe22090..4f1d6fce58c5 100644 --- a/fs/dlm/config.h +++ b/fs/dlm/config.h @@ -35,7 +35,8 @@ extern struct dlm_config_info dlm_config; int dlm_config_init(void); void dlm_config_exit(void); int dlm_node_weight(char *lsname, int nodeid); -int dlm_nodeid_list(char *lsname, int **ids_out); +int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out, + int **new_out, int *new_count_out); int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr); int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid); int dlm_our_nodeid(void); diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index 7a8824f475f2..5a7ac33b629c 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -42,8 +42,6 @@ #include <linux/dlm.h> #include "config.h" -#define DLM_LOCKSPACE_LEN 64 - /* Size of the temp buffer midcomms allocates on the stack. We try to make this large enough so most messages fit. FIXME: should sctp make this unnecessary? */ @@ -132,8 +130,10 @@ struct dlm_member { struct dlm_recover { struct list_head list; - int *nodeids; + int *nodeids; /* nodeids of all members */ int node_count; + int *new; /* nodeids of new members */ + int new_count; uint64_t seq; }; @@ -579,6 +579,8 @@ static inline int dlm_no_directory(struct dlm_ls *ls) int dlm_netlink_init(void); void dlm_netlink_exit(void); void dlm_timeout_warn(struct dlm_lkb *lkb); +int dlm_plock_init(void); +void dlm_plock_exit(void); #ifdef CONFIG_DLM_DEBUG int dlm_register_debugfs(void); diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index 8f250ac8b928..2d3d1027ce2b 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -165,7 +165,7 @@ void dlm_print_lkb(struct dlm_lkb *lkb) lkb->lkb_grmode, lkb->lkb_wait_type, lkb->lkb_ast_type); } -void dlm_print_rsb(struct dlm_rsb *r) +static void dlm_print_rsb(struct dlm_rsb *r) { printk(KERN_ERR "rsb: nodeid %d flags %lx first %x rlc %d name %s\n", r->res_nodeid, r->res_flags, r->res_first_lkid, @@ -1956,8 +1956,7 @@ static void confirm_master(struct dlm_rsb *r, int error) list_del_init(&lkb->lkb_rsb_lookup); r->res_first_lkid = lkb->lkb_id; _request_lock(r, lkb); - } else - r->res_nodeid = -1; + } break; default: diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h index 05d9c82e646b..88e93c80cc22 100644 --- a/fs/dlm/lock.h +++ b/fs/dlm/lock.h @@ -13,7 +13,6 @@ #ifndef __LOCK_DOT_H__ #define __LOCK_DOT_H__ -void dlm_print_rsb(struct dlm_rsb *r); void dlm_dump_rsb(struct dlm_rsb *r); void dlm_print_lkb(struct dlm_lkb *lkb); void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms); diff --git a/fs/dlm/main.c b/fs/dlm/main.c index 58487fb95a4c..b80e0aa3cfa5 100644 --- a/fs/dlm/main.c +++ b/fs/dlm/main.c @@ -46,10 +46,16 @@ static int __init init_dlm(void) if (error) goto out_user; + error = dlm_plock_init(); + if (error) + goto out_netlink; + printk("DLM (built %s %s) installed\n", __DATE__, __TIME__); return 0; + out_netlink: + dlm_netlink_exit(); out_user: dlm_user_exit(); out_debug: @@ -66,6 +72,7 @@ static int __init init_dlm(void) static void __exit exit_dlm(void) { + dlm_plock_exit(); dlm_netlink_exit(); dlm_user_exit(); dlm_config_exit(); diff --git a/fs/dlm/member.c b/fs/dlm/member.c index fa17f5a27883..26133f05ae3a 100644 --- a/fs/dlm/member.c +++ b/fs/dlm/member.c @@ -210,6 +210,23 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out) } } + /* Add an entry to ls_nodes_gone for members that were removed and + then added again, so that previous state for these nodes will be + cleared during recovery. */ + + for (i = 0; i < rv->new_count; i++) { + if (!dlm_is_member(ls, rv->new[i])) + continue; + log_debug(ls, "new nodeid %d is a re-added member", rv->new[i]); + + memb = kzalloc(sizeof(struct dlm_member), GFP_KERNEL); + if (!memb) + return -ENOMEM; + memb->nodeid = rv->new[i]; + list_add_tail(&memb->list, &ls->ls_nodes_gone); + neg++; + } + /* add new members to ls_nodes */ for (i = 0; i < rv->node_count; i++) { @@ -314,15 +331,16 @@ int dlm_ls_stop(struct dlm_ls *ls) int dlm_ls_start(struct dlm_ls *ls) { struct dlm_recover *rv = NULL, *rv_old; - int *ids = NULL; - int error, count; + int *ids = NULL, *new = NULL; + int error, ids_count = 0, new_count = 0; rv = kzalloc(sizeof(struct dlm_recover), GFP_KERNEL); if (!rv) return -ENOMEM; - error = count = dlm_nodeid_list(ls->ls_name, &ids); - if (error <= 0) + error = dlm_nodeid_list(ls->ls_name, &ids, &ids_count, + &new, &new_count); + if (error < 0) goto fail; spin_lock(&ls->ls_recover_lock); @@ -337,14 +355,19 @@ int dlm_ls_start(struct dlm_ls *ls) } rv->nodeids = ids; - rv->node_count = count; + rv->node_count = ids_count; + rv->new = new; + rv->new_count = new_count; rv->seq = ++ls->ls_recover_seq; rv_old = ls->ls_recover_args; ls->ls_recover_args = rv; spin_unlock(&ls->ls_recover_lock); if (rv_old) { + log_error(ls, "unused recovery %llx %d", + (unsigned long long)rv_old->seq, rv_old->node_count); kfree(rv_old->nodeids); + kfree(rv_old->new); kfree(rv_old); } @@ -354,6 +377,7 @@ int dlm_ls_start(struct dlm_ls *ls) fail: kfree(rv); kfree(ids); + kfree(new); return error; } diff --git a/fs/gfs2/locking/dlm/plock.c b/fs/dlm/plock.c index 2ebd374b3143..d6d6e370f89c 100644 --- a/fs/gfs2/locking/dlm/plock.c +++ b/fs/dlm/plock.c @@ -1,17 +1,19 @@ /* - * Copyright (C) 2005 Red Hat, Inc. All rights reserved. + * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU General Public License version 2. */ +#include <linux/fs.h> #include <linux/miscdevice.h> -#include <linux/lock_dlm_plock.h> #include <linux/poll.h> +#include <linux/dlm.h> +#include <linux/dlm_plock.h> -#include "lock_dlm.h" - +#include "dlm_internal.h" +#include "lockspace.h" static spinlock_t ops_lock; static struct list_head send_list; @@ -22,7 +24,7 @@ static wait_queue_head_t recv_wq; struct plock_op { struct list_head list; int done; - struct gdlm_plock_info info; + struct dlm_plock_info info; }; struct plock_xop { @@ -34,22 +36,22 @@ struct plock_xop { }; -static inline void set_version(struct gdlm_plock_info *info) +static inline void set_version(struct dlm_plock_info *info) { - info->version[0] = GDLM_PLOCK_VERSION_MAJOR; - info->version[1] = GDLM_PLOCK_VERSION_MINOR; - info->version[2] = GDLM_PLOCK_VERSION_PATCH; + info->version[0] = DLM_PLOCK_VERSION_MAJOR; + info->version[1] = DLM_PLOCK_VERSION_MINOR; + info->version[2] = DLM_PLOCK_VERSION_PATCH; } -static int check_version(struct gdlm_plock_info *info) +static int check_version(struct dlm_plock_info *info) { - if ((GDLM_PLOCK_VERSION_MAJOR != info->version[0]) || - (GDLM_PLOCK_VERSION_MINOR < info->version[1])) { - log_error("plock device version mismatch: " + if ((DLM_PLOCK_VERSION_MAJOR != info->version[0]) || + (DLM_PLOCK_VERSION_MINOR < info->version[1])) { + log_print("plock device version mismatch: " "kernel (%u.%u.%u), user (%u.%u.%u)", - GDLM_PLOCK_VERSION_MAJOR, - GDLM_PLOCK_VERSION_MINOR, - GDLM_PLOCK_VERSION_PATCH, + DLM_PLOCK_VERSION_MAJOR, + DLM_PLOCK_VERSION_MINOR, + DLM_PLOCK_VERSION_PATCH, info->version[0], info->version[1], info->version[2]); @@ -68,25 +70,31 @@ static void send_op(struct plock_op *op) wake_up(&send_wq); } -int gdlm_plock(void *lockspace, struct lm_lockname *name, - struct file *file, int cmd, struct file_lock *fl) +int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file, + int cmd, struct file_lock *fl) { - struct gdlm_ls *ls = lockspace; + struct dlm_ls *ls; struct plock_op *op; struct plock_xop *xop; int rv; + ls = dlm_find_lockspace_local(lockspace); + if (!ls) + return -EINVAL; + xop = kzalloc(sizeof(*xop), GFP_KERNEL); - if (!xop) - return -ENOMEM; + if (!xop) { + rv = -ENOMEM; + goto out; + } op = &xop->xop; - op->info.optype = GDLM_PLOCK_OP_LOCK; + op->info.optype = DLM_PLOCK_OP_LOCK; op->info.pid = fl->fl_pid; op->info.ex = (fl->fl_type == F_WRLCK); op->info.wait = IS_SETLKW(cmd); - op->info.fsid = ls->id; - op->info.number = name->ln_number; + op->info.fsid = ls->ls_global_id; + op->info.number = number; op->info.start = fl->fl_start; op->info.end = fl->fl_end; if (fl->fl_lmops && fl->fl_lmops->fl_grant) { @@ -107,12 +115,15 @@ int gdlm_plock(void *lockspace, struct lm_lockname *name, if (xop->callback == NULL) wait_event(recv_wq, (op->done != 0)); - else - return -EINPROGRESS; + else { + rv = -EINPROGRESS; + goto out; + } spin_lock(&ops_lock); if (!list_empty(&op->list)) { - printk(KERN_INFO "plock op on list\n"); + log_error(ls, "dlm_posix_lock: op on list %llx", + (unsigned long long)number); list_del(&op->list); } spin_unlock(&ops_lock); @@ -121,17 +132,19 @@ int gdlm_plock(void *lockspace, struct lm_lockname *name, if (!rv) { if (posix_lock_file_wait(file, fl) < 0) - log_error("gdlm_plock: vfs lock error %x,%llx", - name->ln_type, - (unsigned long long)name->ln_number); + log_error(ls, "dlm_posix_lock: vfs lock error %llx", + (unsigned long long)number); } kfree(xop); +out: + dlm_put_lockspace(ls); return rv; } +EXPORT_SYMBOL_GPL(dlm_posix_lock); /* Returns failure iff a succesful lock operation should be canceled */ -static int gdlm_plock_callback(struct plock_op *op) +static int dlm_plock_callback(struct plock_op *op) { struct file *file; struct file_lock *fl; @@ -142,7 +155,8 @@ static int gdlm_plock_callback(struct plock_op *op) spin_lock(&ops_lock); if (!list_empty(&op->list)) { - printk(KERN_INFO "plock op on list\n"); + log_print("dlm_plock_callback: op on list %llx", + (unsigned long long)op->info.number); list_del(&op->list); } spin_unlock(&ops_lock); @@ -165,19 +179,19 @@ static int gdlm_plock_callback(struct plock_op *op) * This can only happen in the case of kmalloc() failure. * The filesystem's own lock is the authoritative lock, * so a failure to get the lock locally is not a disaster. - * As long as GFS cannot reliably cancel locks (especially + * As long as the fs cannot reliably cancel locks (especially * in a low-memory situation), we're better off ignoring * this failure than trying to recover. */ - log_error("gdlm_plock: vfs lock error file %p fl %p", - file, fl); + log_print("dlm_plock_callback: vfs lock error %llx file %p fl %p", + (unsigned long long)op->info.number, file, fl); } rv = notify(flc, NULL, 0); if (rv) { /* XXX: We need to cancel the fs lock here: */ - printk("gfs2 lock granted after lock request failed;" - " dangling lock!\n"); + log_print("dlm_plock_callback: lock granted after lock request " + "failed; dangling lock!\n"); goto out; } @@ -186,25 +200,31 @@ out: return rv; } -int gdlm_punlock(void *lockspace, struct lm_lockname *name, - struct file *file, struct file_lock *fl) +int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file, + struct file_lock *fl) { - struct gdlm_ls *ls = lockspace; + struct dlm_ls *ls; struct plock_op *op; int rv; + ls = dlm_find_lockspace_local(lockspace); + if (!ls) + return -EINVAL; + op = kzalloc(sizeof(*op), GFP_KERNEL); - if (!op) - return -ENOMEM; + if (!op) { + rv = -ENOMEM; + goto out; + } if (posix_lock_file_wait(file, fl) < 0) - log_error("gdlm_punlock: vfs unlock error %x,%llx", - name->ln_type, (unsigned long long)name->ln_number); + log_error(ls, "dlm_posix_unlock: vfs unlock error %llx", + (unsigned long long)number); - op->info.optype = GDLM_PLOCK_OP_UNLOCK; + op->info.optype = DLM_PLOCK_OP_UNLOCK; op->info.pid = fl->fl_pid; - op->info.fsid = ls->id; - op->info.number = name->ln_number; + op->info.fsid = ls->ls_global_id; + op->info.number = number; op->info.start = fl->fl_start; op->info.end = fl->fl_end; if (fl->fl_lmops && fl->fl_lmops->fl_grant) @@ -217,7 +237,8 @@ int gdlm_punlock(void *lockspace, struct lm_lockname *name, spin_lock(&ops_lock); if (!list_empty(&op->list)) { - printk(KERN_INFO "punlock op on list\n"); + log_error(ls, "dlm_posix_unlock: op on list %llx", + (unsigned long long)number); list_del(&op->list); } spin_unlock(&ops_lock); @@ -228,25 +249,34 @@ int gdlm_punlock(void *lockspace, struct lm_lockname *name, rv = 0; kfree(op); +out: + dlm_put_lockspace(ls); return rv; } +EXPORT_SYMBOL_GPL(dlm_posix_unlock); -int gdlm_plock_get(void *lockspace, struct lm_lockname *name, - struct file *file, struct file_lock *fl) +int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file, + struct file_lock *fl) { - struct gdlm_ls *ls = lockspace; + struct dlm_ls *ls; struct plock_op *op; int rv; + ls = dlm_find_lockspace_local(lockspace); + if (!ls) + return -EINVAL; + op = kzalloc(sizeof(*op), GFP_KERNEL); - if (!op) - return -ENOMEM; + if (!op) { + rv = -ENOMEM; + goto out; + } - op->info.optype = GDLM_PLOCK_OP_GET; + op->info.optype = DLM_PLOCK_OP_GET; op->info.pid = fl->fl_pid; op->info.ex = (fl->fl_type == F_WRLCK); - op->info.fsid = ls->id; - op->info.number = name->ln_number; + op->info.fsid = ls->ls_global_id; + op->info.number = number; op->info.start = fl->fl_start; op->info.end = fl->fl_end; if (fl->fl_lmops && fl->fl_lmops->fl_grant) @@ -259,7 +289,8 @@ int gdlm_plock_get(void *lockspace, struct lm_lockname *name, spin_lock(&ops_lock); if (!list_empty(&op->list)) { - printk(KERN_INFO "plock_get op on list\n"); + log_error(ls, "dlm_posix_get: op on list %llx", + (unsigned long long)number); list_del(&op->list); } spin_unlock(&ops_lock); @@ -281,14 +312,17 @@ int gdlm_plock_get(void *lockspace, struct lm_lockname *name, } kfree(op); +out: + dlm_put_lockspace(ls); return rv; } +EXPORT_SYMBOL_GPL(dlm_posix_get); /* a read copies out one plock request from the send list */ static ssize_t dev_read(struct file *file, char __user *u, size_t count, loff_t *ppos) { - struct gdlm_plock_info info; + struct dlm_plock_info info; struct plock_op *op = NULL; if (count < sizeof(info)) @@ -315,7 +349,7 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count, static ssize_t dev_write(struct file *file, const char __user *u, size_t count, loff_t *ppos) { - struct gdlm_plock_info info; + struct dlm_plock_info info; struct plock_op *op; int found = 0; @@ -345,12 +379,12 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count, struct plock_xop *xop; xop = (struct plock_xop *)op; if (xop->callback) - count = gdlm_plock_callback(op); + count = dlm_plock_callback(op); else wake_up(&recv_wq); } else - printk(KERN_INFO "gdlm dev_write no op %x %llx\n", info.fsid, - (unsigned long long)info.number); + log_print("dev_write no op %x %llx", info.fsid, + (unsigned long long)info.number); return count; } @@ -377,11 +411,11 @@ static const struct file_operations dev_fops = { static struct miscdevice plock_dev_misc = { .minor = MISC_DYNAMIC_MINOR, - .name = GDLM_PLOCK_MISC_NAME, + .name = DLM_PLOCK_MISC_NAME, .fops = &dev_fops }; -int gdlm_plock_init(void) +int dlm_plock_init(void) { int rv; @@ -393,14 +427,13 @@ int gdlm_plock_init(void) rv = misc_register(&plock_dev_misc); if (rv) - printk(KERN_INFO "gdlm_plock_init: misc_register failed %d", - rv); + log_print("dlm_plock_init: misc_register failed %d", rv); return rv; } -void gdlm_plock_exit(void) +void dlm_plock_exit(void) { if (misc_deregister(&plock_dev_misc) < 0) - printk(KERN_INFO "gdlm_plock_exit: misc_deregister failed"); + log_print("dlm_plock_exit: misc_deregister failed"); } diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c index 997f9531d594..fd677c8c3d3b 100644 --- a/fs/dlm/recoverd.c +++ b/fs/dlm/recoverd.c @@ -257,6 +257,7 @@ static void do_ls_recovery(struct dlm_ls *ls) if (rv) { ls_recover(ls, rv); kfree(rv->nodeids); + kfree(rv->new); kfree(rv); } } diff --git a/fs/gfs2/locking/dlm/Makefile b/fs/gfs2/locking/dlm/Makefile index 89b93b6b45cf..2609bb6cd013 100644 --- a/fs/gfs2/locking/dlm/Makefile +++ b/fs/gfs2/locking/dlm/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_GFS2_FS_LOCKING_DLM) += lock_dlm.o -lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o plock.o +lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h index 58fcf8c5bf39..a243cf69c54e 100644 --- a/fs/gfs2/locking/dlm/lock_dlm.h +++ b/fs/gfs2/locking/dlm/lock_dlm.h @@ -25,6 +25,7 @@ #include <net/sock.h> #include <linux/dlm.h> +#include <linux/dlm_plock.h> #include <linux/lm_interface.h> /* @@ -173,17 +174,6 @@ void gdlm_cancel(void *); int gdlm_hold_lvb(void *, char **); void gdlm_unhold_lvb(void *, char *); -/* plock.c */ - -int gdlm_plock_init(void); -void gdlm_plock_exit(void); -int gdlm_plock(void *, struct lm_lockname *, struct file *, int, - struct file_lock *); -int gdlm_plock_get(void *, struct lm_lockname *, struct file *, - struct file_lock *); -int gdlm_punlock(void *, struct lm_lockname *, struct file *, - struct file_lock *); - /* mount.c */ extern const struct lm_lockops gdlm_ops; diff --git a/fs/gfs2/locking/dlm/main.c b/fs/gfs2/locking/dlm/main.c index 36a225850bd8..b9a03a7ff801 100644 --- a/fs/gfs2/locking/dlm/main.c +++ b/fs/gfs2/locking/dlm/main.c @@ -28,13 +28,6 @@ static int __init init_lock_dlm(void) return error; } - error = gdlm_plock_init(); - if (error) { - gdlm_sysfs_exit(); - gfs2_unregister_lockproto(&gdlm_ops); - return error; - } - printk(KERN_INFO "Lock_DLM (built %s %s) installed\n", __DATE__, __TIME__); return 0; @@ -42,7 +35,6 @@ static int __init init_lock_dlm(void) static void __exit exit_lock_dlm(void) { - gdlm_plock_exit(); gdlm_sysfs_exit(); gfs2_unregister_lockproto(&gdlm_ops); } diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c index f2efff424224..470bdf650b50 100644 --- a/fs/gfs2/locking/dlm/mount.c +++ b/fs/gfs2/locking/dlm/mount.c @@ -236,6 +236,27 @@ static void gdlm_withdraw(void *lockspace) gdlm_kobject_release(ls); } +static int gdlm_plock(void *lockspace, struct lm_lockname *name, + struct file *file, int cmd, struct file_lock *fl) +{ + struct gdlm_ls *ls = lockspace; + return dlm_posix_lock(ls->dlm_lockspace, name->ln_number, file, cmd, fl); +} + +static int gdlm_punlock(void *lockspace, struct lm_lockname *name, + struct file *file, struct file_lock *fl) +{ + struct gdlm_ls *ls = lockspace; + return dlm_posix_unlock(ls->dlm_lockspace, name->ln_number, file, fl); +} + +static int gdlm_plock_get(void *lockspace, struct lm_lockname *name, + struct file *file, struct file_lock *fl) +{ + struct gdlm_ls *ls = lockspace; + return dlm_posix_get(ls->dlm_lockspace, name->ln_number, file, fl); +} + const struct lm_lockops gdlm_ops = { .lm_proto_name = "lock_dlm", .lm_mount = gdlm_mount, diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 97a88b2b0c8e..cbb5ccb27de3 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -100,7 +100,7 @@ header-y += ixjuser.h header-y += jffs2.h header-y += keyctl.h header-y += limits.h -header-y += lock_dlm_plock.h +header-y += dlm_plock.h header-y += magic.h header-y += major.h header-y += matroxfb.h diff --git a/include/linux/dlm.h b/include/linux/dlm.h index c743fbc769db..203a025e30e5 100644 --- a/include/linux/dlm.h +++ b/include/linux/dlm.h @@ -21,10 +21,7 @@ /* Lock levels and flags are here */ #include <linux/dlmconstants.h> - - -#define DLM_RESNAME_MAXLEN 64 - +#include <linux/types.h> typedef void dlm_lockspace_t; @@ -63,7 +60,7 @@ typedef void dlm_lockspace_t; struct dlm_lksb { int sb_status; - uint32_t sb_lkid; + __u32 sb_lkid; char sb_flags; char * sb_lvbptr; }; diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h index 9642277a152a..c6034508fed9 100644 --- a/include/linux/dlm_device.h +++ b/include/linux/dlm_device.h @@ -11,10 +11,16 @@ ******************************************************************************* ******************************************************************************/ +#ifndef _LINUX_DLM_DEVICE_H +#define _LINUX_DLM_DEVICE_H + /* This is the device interface for dlm, most users will use a library * interface. */ +#include <linux/dlm.h> +#include <linux/types.h> + #define DLM_USER_LVB_LEN 32 /* Version of the device interface */ @@ -94,10 +100,9 @@ struct dlm_lock_result { #define DLM_USER_PURGE 6 #define DLM_USER_DEADLOCK 7 -/* Arbitrary length restriction */ -#define MAX_LS_NAME_LEN 64 - /* Lockspace flags */ #define DLM_USER_LSFLG_AUTOFREE 1 #define DLM_USER_LSFLG_FORCEFREE 2 +#endif + diff --git a/include/linux/dlm_plock.h b/include/linux/dlm_plock.h new file mode 100644 index 000000000000..18d5fdbceb74 --- /dev/null +++ b/include/linux/dlm_plock.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved. + * + * This copyrighted material is made available to anyone wishing to use, + * modify, copy, or redistribute it subject to the terms and conditions + * of the GNU General Public License v.2. + */ + +#ifndef __DLM_PLOCK_DOT_H__ +#define __DLM_PLOCK_DOT_H__ + +#define DLM_PLOCK_MISC_NAME "dlm_plock" + +#define DLM_PLOCK_VERSION_MAJOR 1 +#define DLM_PLOCK_VERSION_MINOR 1 +#define DLM_PLOCK_VERSION_PATCH 0 + +enum { + DLM_PLOCK_OP_LOCK = 1, + DLM_PLOCK_OP_UNLOCK, + DLM_PLOCK_OP_GET, +}; + +struct dlm_plock_info { + __u32 version[3]; + __u8 optype; + __u8 ex; + __u8 wait; + __u8 pad; + __u32 pid; + __s32 nodeid; + __s32 rv; + __u32 fsid; + __u64 number; + __u64 start; + __u64 end; + __u64 owner; +}; + +#ifdef __KERNEL__ +int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file, + int cmd, struct file_lock *fl); +int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file, + struct file_lock *fl); +int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file, + struct file_lock *fl); +#endif /* __KERNEL__ */ + +#endif + diff --git a/include/linux/dlmconstants.h b/include/linux/dlmconstants.h index fddb3d3ff321..47bf08dc7566 100644 --- a/include/linux/dlmconstants.h +++ b/include/linux/dlmconstants.h @@ -18,6 +18,10 @@ * Constants used by DLM interface. */ +#define DLM_LOCKSPACE_LEN 64 +#define DLM_RESNAME_MAXLEN 64 + + /* * Lock Modes */ diff --git a/include/linux/lock_dlm_plock.h b/include/linux/lock_dlm_plock.h deleted file mode 100644 index fc3415113973..000000000000 --- a/include/linux/lock_dlm_plock.h +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright (C) 2005 Red Hat, Inc. All rights reserved. - * - * This copyrighted material is made available to anyone wishing to use, - * modify, copy, or redistribute it subject to the terms and conditions - * of the GNU General Public License v.2. - */ - -#ifndef __LOCK_DLM_PLOCK_DOT_H__ -#define __LOCK_DLM_PLOCK_DOT_H__ - -#define GDLM_PLOCK_MISC_NAME "lock_dlm_plock" - -#define GDLM_PLOCK_VERSION_MAJOR 1 -#define GDLM_PLOCK_VERSION_MINOR 1 -#define GDLM_PLOCK_VERSION_PATCH 0 - -enum { - GDLM_PLOCK_OP_LOCK = 1, - GDLM_PLOCK_OP_UNLOCK, - GDLM_PLOCK_OP_GET, -}; - -struct gdlm_plock_info { - __u32 version[3]; - __u8 optype; - __u8 ex; - __u8 wait; - __u8 pad; - __u32 pid; - __s32 nodeid; - __s32 rv; - __u32 fsid; - __u64 number; - __u64 start; - __u64 end; - __u64 owner; -}; - -#endif - |