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: fs/dlm/ast.c: fix warning dlm: add new debugfs entry dlm: add time stamp of blocking callback dlm: change lock time stamping dlm: improve how bast mode handling dlm: remove extra blocking callback check dlm: replace schedule with cond_resched dlm: remove kmap/kunmap dlm: trivial annotation of be16 value dlm: fix up memory allocation flags
This commit is contained in:
Коммит
7d8a804c59
52
fs/dlm/ast.c
52
fs/dlm/ast.c
|
@ -2,7 +2,7 @@
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*******************************************************************************
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**
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** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
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** Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
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**
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** This copyrighted material is made available to anyone wishing to use,
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** modify, copy, or redistribute it subject to the terms and conditions
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|
@ -33,10 +33,10 @@ void dlm_del_ast(struct dlm_lkb *lkb)
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spin_unlock(&ast_queue_lock);
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}
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void dlm_add_ast(struct dlm_lkb *lkb, int type)
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void dlm_add_ast(struct dlm_lkb *lkb, int type, int bastmode)
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{
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if (lkb->lkb_flags & DLM_IFL_USER) {
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dlm_user_add_ast(lkb, type);
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dlm_user_add_ast(lkb, type, bastmode);
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return;
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}
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@ -46,6 +46,8 @@ void dlm_add_ast(struct dlm_lkb *lkb, int type)
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list_add_tail(&lkb->lkb_astqueue, &ast_queue);
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}
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lkb->lkb_ast_type |= type;
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if (bastmode)
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lkb->lkb_bastmode = bastmode;
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spin_unlock(&ast_queue_lock);
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set_bit(WAKE_ASTS, &astd_wakeflags);
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@ -59,50 +61,40 @@ static void process_asts(void)
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struct dlm_lkb *lkb;
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void (*cast) (void *astparam);
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void (*bast) (void *astparam, int mode);
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int type = 0, found, bmode;
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int type = 0, bastmode;
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for (;;) {
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found = 0;
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spin_lock(&ast_queue_lock);
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list_for_each_entry(lkb, &ast_queue, lkb_astqueue) {
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r = lkb->lkb_resource;
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ls = r->res_ls;
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repeat:
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spin_lock(&ast_queue_lock);
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list_for_each_entry(lkb, &ast_queue, lkb_astqueue) {
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r = lkb->lkb_resource;
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ls = r->res_ls;
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if (dlm_locking_stopped(ls))
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continue;
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if (dlm_locking_stopped(ls))
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continue;
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list_del(&lkb->lkb_astqueue);
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type = lkb->lkb_ast_type;
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lkb->lkb_ast_type = 0;
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bastmode = lkb->lkb_bastmode;
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list_del(&lkb->lkb_astqueue);
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type = lkb->lkb_ast_type;
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lkb->lkb_ast_type = 0;
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found = 1;
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break;
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}
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spin_unlock(&ast_queue_lock);
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if (!found)
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break;
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cast = lkb->lkb_astfn;
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bast = lkb->lkb_bastfn;
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bmode = lkb->lkb_bastmode;
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if ((type & AST_COMP) && cast)
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cast(lkb->lkb_astparam);
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/* FIXME: Is it safe to look at lkb_grmode here
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without doing a lock_rsb() ?
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Look at other checks in v1 to avoid basts. */
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if ((type & AST_BAST) && bast)
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if (!dlm_modes_compat(lkb->lkb_grmode, bmode))
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bast(lkb->lkb_astparam, bmode);
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bast(lkb->lkb_astparam, bastmode);
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/* this removes the reference added by dlm_add_ast
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and may result in the lkb being freed */
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dlm_put_lkb(lkb);
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schedule();
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cond_resched();
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goto repeat;
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}
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spin_unlock(&ast_queue_lock);
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}
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static inline int no_asts(void)
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|
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@ -1,7 +1,7 @@
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/******************************************************************************
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*******************************************************************************
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**
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** Copyright (C) 2005 Red Hat, Inc. All rights reserved.
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** Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
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**
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** This copyrighted material is made available to anyone wishing to use,
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** modify, copy, or redistribute it subject to the terms and conditions
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|
@ -13,7 +13,7 @@
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#ifndef __ASTD_DOT_H__
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#define __ASTD_DOT_H__
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void dlm_add_ast(struct dlm_lkb *lkb, int type);
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void dlm_add_ast(struct dlm_lkb *lkb, int type, int bastmode);
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void dlm_del_ast(struct dlm_lkb *lkb);
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void dlm_astd_wake(void);
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|
|
|
@ -1,7 +1,7 @@
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/******************************************************************************
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*******************************************************************************
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**
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** Copyright (C) 2005 Red Hat, Inc. All rights reserved.
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** Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
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**
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** This copyrighted material is made available to anyone wishing to use,
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** modify, copy, or redistribute it subject to the terms and conditions
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|
@ -27,7 +27,7 @@ static struct dentry *dlm_root;
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struct rsb_iter {
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int entry;
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int locks;
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int format;
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int header;
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struct dlm_ls *ls;
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struct list_head *next;
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@ -60,8 +60,8 @@ static char *print_lockmode(int mode)
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}
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}
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static void print_resource_lock(struct seq_file *s, struct dlm_lkb *lkb,
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struct dlm_rsb *res)
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static void print_format1_lock(struct seq_file *s, struct dlm_lkb *lkb,
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struct dlm_rsb *res)
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{
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seq_printf(s, "%08x %s", lkb->lkb_id, print_lockmode(lkb->lkb_grmode));
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@ -83,7 +83,7 @@ static void print_resource_lock(struct seq_file *s, struct dlm_lkb *lkb,
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seq_printf(s, "\n");
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}
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static int print_resource(struct dlm_rsb *res, struct seq_file *s)
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static int print_format1(struct dlm_rsb *res, struct seq_file *s)
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{
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struct dlm_lkb *lkb;
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int i, lvblen = res->res_ls->ls_lvblen, recover_list, root_list;
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@ -134,15 +134,15 @@ static int print_resource(struct dlm_rsb *res, struct seq_file *s)
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/* Print the locks attached to this resource */
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seq_printf(s, "Granted Queue\n");
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list_for_each_entry(lkb, &res->res_grantqueue, lkb_statequeue)
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print_resource_lock(s, lkb, res);
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print_format1_lock(s, lkb, res);
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seq_printf(s, "Conversion Queue\n");
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list_for_each_entry(lkb, &res->res_convertqueue, lkb_statequeue)
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print_resource_lock(s, lkb, res);
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print_format1_lock(s, lkb, res);
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seq_printf(s, "Waiting Queue\n");
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list_for_each_entry(lkb, &res->res_waitqueue, lkb_statequeue)
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print_resource_lock(s, lkb, res);
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print_format1_lock(s, lkb, res);
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if (list_empty(&res->res_lookup))
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goto out;
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@ -160,23 +160,24 @@ static int print_resource(struct dlm_rsb *res, struct seq_file *s)
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return 0;
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}
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static void print_lock(struct seq_file *s, struct dlm_lkb *lkb, struct dlm_rsb *r)
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static void print_format2_lock(struct seq_file *s, struct dlm_lkb *lkb,
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struct dlm_rsb *r)
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{
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unsigned int waiting = 0;
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uint64_t xid = 0;
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u64 xid = 0;
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u64 us;
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if (lkb->lkb_flags & DLM_IFL_USER) {
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if (lkb->lkb_ua)
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xid = lkb->lkb_ua->xid;
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}
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if (lkb->lkb_timestamp)
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waiting = jiffies_to_msecs(jiffies - lkb->lkb_timestamp);
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/* microseconds since lkb was added to current queue */
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us = ktime_to_us(ktime_sub(ktime_get(), lkb->lkb_timestamp));
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/* id nodeid remid pid xid exflags flags sts grmode rqmode time_ms
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/* id nodeid remid pid xid exflags flags sts grmode rqmode time_us
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r_nodeid r_len r_name */
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seq_printf(s, "%x %d %x %u %llu %x %x %d %d %d %u %u %d \"%s\"\n",
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seq_printf(s, "%x %d %x %u %llu %x %x %d %d %d %llu %u %d \"%s\"\n",
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lkb->lkb_id,
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lkb->lkb_nodeid,
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lkb->lkb_remid,
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@ -187,26 +188,114 @@ static void print_lock(struct seq_file *s, struct dlm_lkb *lkb, struct dlm_rsb *
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lkb->lkb_status,
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lkb->lkb_grmode,
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lkb->lkb_rqmode,
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waiting,
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(unsigned long long)us,
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r->res_nodeid,
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r->res_length,
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r->res_name);
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}
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static int print_locks(struct dlm_rsb *r, struct seq_file *s)
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static int print_format2(struct dlm_rsb *r, struct seq_file *s)
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{
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struct dlm_lkb *lkb;
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lock_rsb(r);
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list_for_each_entry(lkb, &r->res_grantqueue, lkb_statequeue)
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print_lock(s, lkb, r);
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print_format2_lock(s, lkb, r);
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list_for_each_entry(lkb, &r->res_convertqueue, lkb_statequeue)
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print_lock(s, lkb, r);
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print_format2_lock(s, lkb, r);
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list_for_each_entry(lkb, &r->res_waitqueue, lkb_statequeue)
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print_lock(s, lkb, r);
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print_format2_lock(s, lkb, r);
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unlock_rsb(r);
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return 0;
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}
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static void print_format3_lock(struct seq_file *s, struct dlm_lkb *lkb,
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int rsb_lookup)
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{
|
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u64 xid = 0;
|
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|
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if (lkb->lkb_flags & DLM_IFL_USER) {
|
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if (lkb->lkb_ua)
|
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xid = lkb->lkb_ua->xid;
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}
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|
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seq_printf(s, "lkb %x %d %x %u %llu %x %x %d %d %d %d %d %d %u %llu %llu\n",
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lkb->lkb_id,
|
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lkb->lkb_nodeid,
|
||||
lkb->lkb_remid,
|
||||
lkb->lkb_ownpid,
|
||||
(unsigned long long)xid,
|
||||
lkb->lkb_exflags,
|
||||
lkb->lkb_flags,
|
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lkb->lkb_status,
|
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lkb->lkb_grmode,
|
||||
lkb->lkb_rqmode,
|
||||
lkb->lkb_highbast,
|
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rsb_lookup,
|
||||
lkb->lkb_wait_type,
|
||||
lkb->lkb_lvbseq,
|
||||
(unsigned long long)ktime_to_ns(lkb->lkb_timestamp),
|
||||
(unsigned long long)ktime_to_ns(lkb->lkb_time_bast));
|
||||
}
|
||||
|
||||
static int print_format3(struct dlm_rsb *r, struct seq_file *s)
|
||||
{
|
||||
struct dlm_lkb *lkb;
|
||||
int i, lvblen = r->res_ls->ls_lvblen;
|
||||
int print_name = 1;
|
||||
|
||||
lock_rsb(r);
|
||||
|
||||
seq_printf(s, "rsb %p %d %x %lx %d %d %u %d ",
|
||||
r,
|
||||
r->res_nodeid,
|
||||
r->res_first_lkid,
|
||||
r->res_flags,
|
||||
!list_empty(&r->res_root_list),
|
||||
!list_empty(&r->res_recover_list),
|
||||
r->res_recover_locks_count,
|
||||
r->res_length);
|
||||
|
||||
for (i = 0; i < r->res_length; i++) {
|
||||
if (!isascii(r->res_name[i]) || !isprint(r->res_name[i]))
|
||||
print_name = 0;
|
||||
}
|
||||
|
||||
seq_printf(s, "%s", print_name ? "str " : "hex");
|
||||
|
||||
for (i = 0; i < r->res_length; i++) {
|
||||
if (print_name)
|
||||
seq_printf(s, "%c", r->res_name[i]);
|
||||
else
|
||||
seq_printf(s, " %02x", (unsigned char)r->res_name[i]);
|
||||
}
|
||||
seq_printf(s, "\n");
|
||||
|
||||
if (!r->res_lvbptr)
|
||||
goto do_locks;
|
||||
|
||||
seq_printf(s, "lvb %u %d", r->res_lvbseq, lvblen);
|
||||
|
||||
for (i = 0; i < lvblen; i++)
|
||||
seq_printf(s, " %02x", (unsigned char)r->res_lvbptr[i]);
|
||||
seq_printf(s, "\n");
|
||||
|
||||
do_locks:
|
||||
list_for_each_entry(lkb, &r->res_grantqueue, lkb_statequeue)
|
||||
print_format3_lock(s, lkb, 0);
|
||||
|
||||
list_for_each_entry(lkb, &r->res_convertqueue, lkb_statequeue)
|
||||
print_format3_lock(s, lkb, 0);
|
||||
|
||||
list_for_each_entry(lkb, &r->res_waitqueue, lkb_statequeue)
|
||||
print_format3_lock(s, lkb, 0);
|
||||
|
||||
list_for_each_entry(lkb, &r->res_lookup, lkb_rsb_lookup)
|
||||
print_format3_lock(s, lkb, 1);
|
||||
|
||||
unlock_rsb(r);
|
||||
return 0;
|
||||
|
@ -231,7 +320,7 @@ static int rsb_iter_next(struct rsb_iter *ri)
|
|||
break;
|
||||
}
|
||||
read_unlock(&ls->ls_rsbtbl[i].lock);
|
||||
}
|
||||
}
|
||||
ri->entry = i;
|
||||
|
||||
if (ri->entry >= ls->ls_rsbtbl_size)
|
||||
|
@ -248,7 +337,7 @@ static int rsb_iter_next(struct rsb_iter *ri)
|
|||
read_unlock(&ls->ls_rsbtbl[i].lock);
|
||||
dlm_put_rsb(old);
|
||||
goto top;
|
||||
}
|
||||
}
|
||||
ri->rsb = list_entry(ri->next, struct dlm_rsb, res_hashchain);
|
||||
dlm_hold_rsb(ri->rsb);
|
||||
read_unlock(&ls->ls_rsbtbl[i].lock);
|
||||
|
@ -274,6 +363,7 @@ static struct rsb_iter *rsb_iter_init(struct dlm_ls *ls)
|
|||
ri->ls = ls;
|
||||
ri->entry = 0;
|
||||
ri->next = NULL;
|
||||
ri->format = 1;
|
||||
|
||||
if (rsb_iter_next(ri)) {
|
||||
rsb_iter_free(ri);
|
||||
|
@ -325,16 +415,26 @@ static int rsb_seq_show(struct seq_file *file, void *iter_ptr)
|
|||
{
|
||||
struct rsb_iter *ri = iter_ptr;
|
||||
|
||||
if (ri->locks) {
|
||||
switch (ri->format) {
|
||||
case 1:
|
||||
print_format1(ri->rsb, file);
|
||||
break;
|
||||
case 2:
|
||||
if (ri->header) {
|
||||
seq_printf(file, "id nodeid remid pid xid exflags flags "
|
||||
"sts grmode rqmode time_ms r_nodeid "
|
||||
"r_len r_name\n");
|
||||
seq_printf(file, "id nodeid remid pid xid exflags "
|
||||
"flags sts grmode rqmode time_ms "
|
||||
"r_nodeid r_len r_name\n");
|
||||
ri->header = 0;
|
||||
}
|
||||
print_locks(ri->rsb, file);
|
||||
} else {
|
||||
print_resource(ri->rsb, file);
|
||||
print_format2(ri->rsb, file);
|
||||
break;
|
||||
case 3:
|
||||
if (ri->header) {
|
||||
seq_printf(file, "version rsb 1.1 lvb 1.1 lkb 1.1\n");
|
||||
ri->header = 0;
|
||||
}
|
||||
print_format3(ri->rsb, file);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
@ -385,7 +485,7 @@ static struct rsb_iter *locks_iter_init(struct dlm_ls *ls, loff_t *pos)
|
|||
ri->ls = ls;
|
||||
ri->entry = 0;
|
||||
ri->next = NULL;
|
||||
ri->locks = 1;
|
||||
ri->format = 2;
|
||||
|
||||
if (*pos == 0)
|
||||
ri->header = 1;
|
||||
|
@ -447,6 +547,84 @@ static const struct file_operations locks_fops = {
|
|||
.release = seq_release
|
||||
};
|
||||
|
||||
/*
|
||||
* Dump all rsb/lvb/lkb state in compact listing, more complete than _locks
|
||||
* This can replace both formats 1 and 2 eventually.
|
||||
*/
|
||||
|
||||
static struct rsb_iter *all_iter_init(struct dlm_ls *ls, loff_t *pos)
|
||||
{
|
||||
struct rsb_iter *ri;
|
||||
|
||||
ri = kzalloc(sizeof *ri, GFP_KERNEL);
|
||||
if (!ri)
|
||||
return NULL;
|
||||
|
||||
ri->ls = ls;
|
||||
ri->entry = 0;
|
||||
ri->next = NULL;
|
||||
ri->format = 3;
|
||||
|
||||
if (*pos == 0)
|
||||
ri->header = 1;
|
||||
|
||||
if (rsb_iter_next(ri)) {
|
||||
rsb_iter_free(ri);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return ri;
|
||||
}
|
||||
|
||||
static void *all_seq_start(struct seq_file *file, loff_t *pos)
|
||||
{
|
||||
struct rsb_iter *ri;
|
||||
loff_t n = *pos;
|
||||
|
||||
ri = all_iter_init(file->private, pos);
|
||||
if (!ri)
|
||||
return NULL;
|
||||
|
||||
while (n--) {
|
||||
if (rsb_iter_next(ri)) {
|
||||
rsb_iter_free(ri);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
return ri;
|
||||
}
|
||||
|
||||
static struct seq_operations all_seq_ops = {
|
||||
.start = all_seq_start,
|
||||
.next = rsb_seq_next,
|
||||
.stop = rsb_seq_stop,
|
||||
.show = rsb_seq_show,
|
||||
};
|
||||
|
||||
static int all_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct seq_file *seq;
|
||||
int ret;
|
||||
|
||||
ret = seq_open(file, &all_seq_ops);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
seq = file->private_data;
|
||||
seq->private = inode->i_private;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct file_operations all_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = all_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = seq_release
|
||||
};
|
||||
|
||||
/*
|
||||
* dump lkb's on the ls_waiters list
|
||||
*/
|
||||
|
@ -489,30 +667,33 @@ static const struct file_operations waiters_fops = {
|
|||
.read = waiters_read
|
||||
};
|
||||
|
||||
void dlm_delete_debug_file(struct dlm_ls *ls)
|
||||
{
|
||||
if (ls->ls_debug_rsb_dentry)
|
||||
debugfs_remove(ls->ls_debug_rsb_dentry);
|
||||
if (ls->ls_debug_waiters_dentry)
|
||||
debugfs_remove(ls->ls_debug_waiters_dentry);
|
||||
if (ls->ls_debug_locks_dentry)
|
||||
debugfs_remove(ls->ls_debug_locks_dentry);
|
||||
if (ls->ls_debug_all_dentry)
|
||||
debugfs_remove(ls->ls_debug_all_dentry);
|
||||
}
|
||||
|
||||
int dlm_create_debug_file(struct dlm_ls *ls)
|
||||
{
|
||||
char name[DLM_LOCKSPACE_LEN+8];
|
||||
|
||||
/* format 1 */
|
||||
|
||||
ls->ls_debug_rsb_dentry = debugfs_create_file(ls->ls_name,
|
||||
S_IFREG | S_IRUGO,
|
||||
dlm_root,
|
||||
ls,
|
||||
&rsb_fops);
|
||||
if (!ls->ls_debug_rsb_dentry)
|
||||
return -ENOMEM;
|
||||
goto fail;
|
||||
|
||||
memset(name, 0, sizeof(name));
|
||||
snprintf(name, DLM_LOCKSPACE_LEN+8, "%s_waiters", ls->ls_name);
|
||||
|
||||
ls->ls_debug_waiters_dentry = debugfs_create_file(name,
|
||||
S_IFREG | S_IRUGO,
|
||||
dlm_root,
|
||||
ls,
|
||||
&waiters_fops);
|
||||
if (!ls->ls_debug_waiters_dentry) {
|
||||
debugfs_remove(ls->ls_debug_rsb_dentry);
|
||||
return -ENOMEM;
|
||||
}
|
||||
/* format 2 */
|
||||
|
||||
memset(name, 0, sizeof(name));
|
||||
snprintf(name, DLM_LOCKSPACE_LEN+8, "%s_locks", ls->ls_name);
|
||||
|
@ -522,23 +703,38 @@ int dlm_create_debug_file(struct dlm_ls *ls)
|
|||
dlm_root,
|
||||
ls,
|
||||
&locks_fops);
|
||||
if (!ls->ls_debug_locks_dentry) {
|
||||
debugfs_remove(ls->ls_debug_waiters_dentry);
|
||||
debugfs_remove(ls->ls_debug_rsb_dentry);
|
||||
return -ENOMEM;
|
||||
}
|
||||
if (!ls->ls_debug_locks_dentry)
|
||||
goto fail;
|
||||
|
||||
/* format 3 */
|
||||
|
||||
memset(name, 0, sizeof(name));
|
||||
snprintf(name, DLM_LOCKSPACE_LEN+8, "%s_all", ls->ls_name);
|
||||
|
||||
ls->ls_debug_all_dentry = debugfs_create_file(name,
|
||||
S_IFREG | S_IRUGO,
|
||||
dlm_root,
|
||||
ls,
|
||||
&all_fops);
|
||||
if (!ls->ls_debug_all_dentry)
|
||||
goto fail;
|
||||
|
||||
memset(name, 0, sizeof(name));
|
||||
snprintf(name, DLM_LOCKSPACE_LEN+8, "%s_waiters", ls->ls_name);
|
||||
|
||||
ls->ls_debug_waiters_dentry = debugfs_create_file(name,
|
||||
S_IFREG | S_IRUGO,
|
||||
dlm_root,
|
||||
ls,
|
||||
&waiters_fops);
|
||||
if (!ls->ls_debug_waiters_dentry)
|
||||
goto fail;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void dlm_delete_debug_file(struct dlm_ls *ls)
|
||||
{
|
||||
if (ls->ls_debug_rsb_dentry)
|
||||
debugfs_remove(ls->ls_debug_rsb_dentry);
|
||||
if (ls->ls_debug_waiters_dentry)
|
||||
debugfs_remove(ls->ls_debug_waiters_dentry);
|
||||
if (ls->ls_debug_locks_dentry)
|
||||
debugfs_remove(ls->ls_debug_locks_dentry);
|
||||
fail:
|
||||
dlm_delete_debug_file(ls);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
int __init dlm_register_debugfs(void)
|
||||
|
|
18
fs/dlm/dir.c
18
fs/dlm/dir.c
|
@ -374,7 +374,7 @@ void dlm_copy_master_names(struct dlm_ls *ls, char *inbuf, int inlen,
|
|||
struct list_head *list;
|
||||
struct dlm_rsb *r;
|
||||
int offset = 0, dir_nodeid;
|
||||
uint16_t be_namelen;
|
||||
__be16 be_namelen;
|
||||
|
||||
down_read(&ls->ls_root_sem);
|
||||
|
||||
|
@ -410,15 +410,15 @@ void dlm_copy_master_names(struct dlm_ls *ls, char *inbuf, int inlen,
|
|||
|
||||
if (offset + sizeof(uint16_t)*2 + r->res_length > outlen) {
|
||||
/* Write end-of-block record */
|
||||
be_namelen = 0;
|
||||
memcpy(outbuf + offset, &be_namelen, sizeof(uint16_t));
|
||||
offset += sizeof(uint16_t);
|
||||
be_namelen = cpu_to_be16(0);
|
||||
memcpy(outbuf + offset, &be_namelen, sizeof(__be16));
|
||||
offset += sizeof(__be16);
|
||||
goto out;
|
||||
}
|
||||
|
||||
be_namelen = cpu_to_be16(r->res_length);
|
||||
memcpy(outbuf + offset, &be_namelen, sizeof(uint16_t));
|
||||
offset += sizeof(uint16_t);
|
||||
memcpy(outbuf + offset, &be_namelen, sizeof(__be16));
|
||||
offset += sizeof(__be16);
|
||||
memcpy(outbuf + offset, r->res_name, r->res_length);
|
||||
offset += r->res_length;
|
||||
}
|
||||
|
@ -430,9 +430,9 @@ void dlm_copy_master_names(struct dlm_ls *ls, char *inbuf, int inlen,
|
|||
|
||||
if ((list == &ls->ls_root_list) &&
|
||||
(offset + sizeof(uint16_t) <= outlen)) {
|
||||
be_namelen = 0xFFFF;
|
||||
memcpy(outbuf + offset, &be_namelen, sizeof(uint16_t));
|
||||
offset += sizeof(uint16_t);
|
||||
be_namelen = cpu_to_be16(0xFFFF);
|
||||
memcpy(outbuf + offset, &be_namelen, sizeof(__be16));
|
||||
offset += sizeof(__be16);
|
||||
}
|
||||
|
||||
out:
|
||||
|
|
|
@ -245,7 +245,8 @@ struct dlm_lkb {
|
|||
struct list_head lkb_astqueue; /* need ast to be sent */
|
||||
struct list_head lkb_ownqueue; /* list of locks for a process */
|
||||
struct list_head lkb_time_list;
|
||||
unsigned long lkb_timestamp;
|
||||
ktime_t lkb_time_bast; /* for debugging */
|
||||
ktime_t lkb_timestamp;
|
||||
unsigned long lkb_timeout_cs;
|
||||
|
||||
char *lkb_lvbptr;
|
||||
|
@ -481,6 +482,7 @@ struct dlm_ls {
|
|||
struct dentry *ls_debug_rsb_dentry; /* debugfs */
|
||||
struct dentry *ls_debug_waiters_dentry; /* debugfs */
|
||||
struct dentry *ls_debug_locks_dentry; /* debugfs */
|
||||
struct dentry *ls_debug_all_dentry; /* debugfs */
|
||||
|
||||
wait_queue_head_t ls_uevent_wait; /* user part of join/leave */
|
||||
int ls_uevent_result;
|
||||
|
|
|
@ -307,7 +307,7 @@ static void queue_cast(struct dlm_rsb *r, struct dlm_lkb *lkb, int rv)
|
|||
lkb->lkb_lksb->sb_status = rv;
|
||||
lkb->lkb_lksb->sb_flags = lkb->lkb_sbflags;
|
||||
|
||||
dlm_add_ast(lkb, AST_COMP);
|
||||
dlm_add_ast(lkb, AST_COMP, 0);
|
||||
}
|
||||
|
||||
static inline void queue_cast_overlap(struct dlm_rsb *r, struct dlm_lkb *lkb)
|
||||
|
@ -318,12 +318,12 @@ static inline void queue_cast_overlap(struct dlm_rsb *r, struct dlm_lkb *lkb)
|
|||
|
||||
static void queue_bast(struct dlm_rsb *r, struct dlm_lkb *lkb, int rqmode)
|
||||
{
|
||||
lkb->lkb_time_bast = ktime_get();
|
||||
|
||||
if (is_master_copy(lkb))
|
||||
send_bast(r, lkb, rqmode);
|
||||
else {
|
||||
lkb->lkb_bastmode = rqmode;
|
||||
dlm_add_ast(lkb, AST_BAST);
|
||||
}
|
||||
else
|
||||
dlm_add_ast(lkb, AST_BAST, rqmode);
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -744,6 +744,8 @@ static void add_lkb(struct dlm_rsb *r, struct dlm_lkb *lkb, int status)
|
|||
|
||||
DLM_ASSERT(!lkb->lkb_status, dlm_print_lkb(lkb););
|
||||
|
||||
lkb->lkb_timestamp = ktime_get();
|
||||
|
||||
lkb->lkb_status = status;
|
||||
|
||||
switch (status) {
|
||||
|
@ -1013,10 +1015,8 @@ static void add_timeout(struct dlm_lkb *lkb)
|
|||
{
|
||||
struct dlm_ls *ls = lkb->lkb_resource->res_ls;
|
||||
|
||||
if (is_master_copy(lkb)) {
|
||||
lkb->lkb_timestamp = jiffies;
|
||||
if (is_master_copy(lkb))
|
||||
return;
|
||||
}
|
||||
|
||||
if (test_bit(LSFL_TIMEWARN, &ls->ls_flags) &&
|
||||
!(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) {
|
||||
|
@ -1031,7 +1031,6 @@ static void add_timeout(struct dlm_lkb *lkb)
|
|||
DLM_ASSERT(list_empty(&lkb->lkb_time_list), dlm_print_lkb(lkb););
|
||||
mutex_lock(&ls->ls_timeout_mutex);
|
||||
hold_lkb(lkb);
|
||||
lkb->lkb_timestamp = jiffies;
|
||||
list_add_tail(&lkb->lkb_time_list, &ls->ls_timeout);
|
||||
mutex_unlock(&ls->ls_timeout_mutex);
|
||||
}
|
||||
|
@ -1059,6 +1058,7 @@ void dlm_scan_timeout(struct dlm_ls *ls)
|
|||
struct dlm_rsb *r;
|
||||
struct dlm_lkb *lkb;
|
||||
int do_cancel, do_warn;
|
||||
s64 wait_us;
|
||||
|
||||
for (;;) {
|
||||
if (dlm_locking_stopped(ls))
|
||||
|
@ -1069,14 +1069,15 @@ void dlm_scan_timeout(struct dlm_ls *ls)
|
|||
mutex_lock(&ls->ls_timeout_mutex);
|
||||
list_for_each_entry(lkb, &ls->ls_timeout, lkb_time_list) {
|
||||
|
||||
wait_us = ktime_to_us(ktime_sub(ktime_get(),
|
||||
lkb->lkb_timestamp));
|
||||
|
||||
if ((lkb->lkb_exflags & DLM_LKF_TIMEOUT) &&
|
||||
time_after_eq(jiffies, lkb->lkb_timestamp +
|
||||
lkb->lkb_timeout_cs * HZ/100))
|
||||
wait_us >= (lkb->lkb_timeout_cs * 10000))
|
||||
do_cancel = 1;
|
||||
|
||||
if ((lkb->lkb_flags & DLM_IFL_WATCH_TIMEWARN) &&
|
||||
time_after_eq(jiffies, lkb->lkb_timestamp +
|
||||
dlm_config.ci_timewarn_cs * HZ/100))
|
||||
wait_us >= dlm_config.ci_timewarn_cs * 10000)
|
||||
do_warn = 1;
|
||||
|
||||
if (!do_cancel && !do_warn)
|
||||
|
@ -1122,12 +1123,12 @@ void dlm_scan_timeout(struct dlm_ls *ls)
|
|||
void dlm_adjust_timeouts(struct dlm_ls *ls)
|
||||
{
|
||||
struct dlm_lkb *lkb;
|
||||
long adj = jiffies - ls->ls_recover_begin;
|
||||
u64 adj_us = jiffies_to_usecs(jiffies - ls->ls_recover_begin);
|
||||
|
||||
ls->ls_recover_begin = 0;
|
||||
mutex_lock(&ls->ls_timeout_mutex);
|
||||
list_for_each_entry(lkb, &ls->ls_timeout, lkb_time_list)
|
||||
lkb->lkb_timestamp += adj;
|
||||
lkb->lkb_timestamp = ktime_add_us(lkb->lkb_timestamp, adj_us);
|
||||
mutex_unlock(&ls->ls_timeout_mutex);
|
||||
}
|
||||
|
||||
|
|
|
@ -295,6 +295,7 @@ static int add_sock(struct socket *sock, struct connection *con)
|
|||
con->sock->sk->sk_write_space = lowcomms_write_space;
|
||||
con->sock->sk->sk_state_change = lowcomms_state_change;
|
||||
con->sock->sk->sk_user_data = con;
|
||||
con->sock->sk->sk_allocation = GFP_NOFS;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
@ -823,7 +824,6 @@ static void sctp_init_assoc(struct connection *con)
|
|||
len = e->len;
|
||||
offset = e->offset;
|
||||
spin_unlock(&con->writequeue_lock);
|
||||
kmap(e->page);
|
||||
|
||||
/* Send the first block off the write queue */
|
||||
iov[0].iov_base = page_address(e->page)+offset;
|
||||
|
@ -854,7 +854,6 @@ static void sctp_init_assoc(struct connection *con)
|
|||
|
||||
if (e->len == 0 && e->users == 0) {
|
||||
list_del(&e->list);
|
||||
kunmap(e->page);
|
||||
free_entry(e);
|
||||
}
|
||||
spin_unlock(&con->writequeue_lock);
|
||||
|
@ -1203,8 +1202,6 @@ void *dlm_lowcomms_get_buffer(int nodeid, int len, gfp_t allocation, char **ppc)
|
|||
|
||||
if (e) {
|
||||
got_one:
|
||||
if (users == 0)
|
||||
kmap(e->page);
|
||||
*ppc = page_address(e->page) + offset;
|
||||
return e;
|
||||
}
|
||||
|
@ -1233,7 +1230,6 @@ void dlm_lowcomms_commit_buffer(void *mh)
|
|||
if (users)
|
||||
goto out;
|
||||
e->len = e->end - e->offset;
|
||||
kunmap(e->page);
|
||||
spin_unlock(&con->writequeue_lock);
|
||||
|
||||
if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags)) {
|
||||
|
@ -1272,7 +1268,6 @@ static void send_to_sock(struct connection *con)
|
|||
offset = e->offset;
|
||||
BUG_ON(len == 0 && e->users == 0);
|
||||
spin_unlock(&con->writequeue_lock);
|
||||
kmap(e->page);
|
||||
|
||||
ret = 0;
|
||||
if (len) {
|
||||
|
@ -1294,7 +1289,6 @@ static void send_to_sock(struct connection *con)
|
|||
|
||||
if (e->len == 0 && e->users == 0) {
|
||||
list_del(&e->list);
|
||||
kunmap(e->page);
|
||||
free_entry(e);
|
||||
continue;
|
||||
}
|
||||
|
|
|
@ -39,7 +39,7 @@ char *dlm_allocate_lvb(struct dlm_ls *ls)
|
|||
{
|
||||
char *p;
|
||||
|
||||
p = kzalloc(ls->ls_lvblen, GFP_KERNEL);
|
||||
p = kzalloc(ls->ls_lvblen, ls->ls_allocation);
|
||||
return p;
|
||||
}
|
||||
|
||||
|
@ -57,7 +57,7 @@ struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls, int namelen)
|
|||
|
||||
DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,);
|
||||
|
||||
r = kzalloc(sizeof(*r) + namelen, GFP_KERNEL);
|
||||
r = kzalloc(sizeof(*r) + namelen, ls->ls_allocation);
|
||||
return r;
|
||||
}
|
||||
|
||||
|
@ -72,7 +72,7 @@ struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
|
|||
{
|
||||
struct dlm_lkb *lkb;
|
||||
|
||||
lkb = kmem_cache_zalloc(lkb_cache, GFP_KERNEL);
|
||||
lkb = kmem_cache_zalloc(lkb_cache, ls->ls_allocation);
|
||||
return lkb;
|
||||
}
|
||||
|
||||
|
|
|
@ -112,7 +112,7 @@ int dlm_process_incoming_buffer(int nodeid, const void *base,
|
|||
ordinary messages). */
|
||||
|
||||
if (msglen > sizeof(__tmp) && p == &__tmp.p) {
|
||||
p = kmalloc(dlm_config.ci_buffer_size, GFP_KERNEL);
|
||||
p = kmalloc(dlm_config.ci_buffer_size, GFP_NOFS);
|
||||
if (p == NULL)
|
||||
return ret;
|
||||
}
|
||||
|
|
|
@ -115,7 +115,6 @@ static void fill_data(struct dlm_lock_data *data, struct dlm_lkb *lkb)
|
|||
data->status = lkb->lkb_status;
|
||||
data->grmode = lkb->lkb_grmode;
|
||||
data->rqmode = lkb->lkb_rqmode;
|
||||
data->timestamp = lkb->lkb_timestamp;
|
||||
if (lkb->lkb_ua)
|
||||
data->xid = lkb->lkb_ua->xid;
|
||||
if (r) {
|
||||
|
|
|
@ -175,7 +175,7 @@ static int lkb_is_endoflife(struct dlm_lkb *lkb, int sb_status, int type)
|
|||
/* we could possibly check if the cancel of an orphan has resulted in the lkb
|
||||
being removed and then remove that lkb from the orphans list and free it */
|
||||
|
||||
void dlm_user_add_ast(struct dlm_lkb *lkb, int type)
|
||||
void dlm_user_add_ast(struct dlm_lkb *lkb, int type, int bastmode)
|
||||
{
|
||||
struct dlm_ls *ls;
|
||||
struct dlm_user_args *ua;
|
||||
|
@ -208,6 +208,8 @@ void dlm_user_add_ast(struct dlm_lkb *lkb, int type)
|
|||
|
||||
ast_type = lkb->lkb_ast_type;
|
||||
lkb->lkb_ast_type |= type;
|
||||
if (bastmode)
|
||||
lkb->lkb_bastmode = bastmode;
|
||||
|
||||
if (!ast_type) {
|
||||
kref_get(&lkb->lkb_ref);
|
||||
|
|
|
@ -9,7 +9,7 @@
|
|||
#ifndef __USER_DOT_H__
|
||||
#define __USER_DOT_H__
|
||||
|
||||
void dlm_user_add_ast(struct dlm_lkb *lkb, int type);
|
||||
void dlm_user_add_ast(struct dlm_lkb *lkb, int type, int bastmode);
|
||||
int dlm_user_init(void);
|
||||
void dlm_user_exit(void);
|
||||
int dlm_device_deregister(struct dlm_ls *ls);
|
||||
|
|
Загрузка…
Ссылка в новой задаче