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Reviewed and applied spl-00-rm-gpl-symbol-notifier_chain.patch

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from Ricardo which removes a dependency on the GPL-only symbol
needed for a panic time notifier.  This funcationality was never
used and this improves our portability.



git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@159 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
This commit is contained in:
behlendo
2008-11-03 19:53:23 +00:00
parent e73187714d
commit d50bd9e221
3 changed files with 35 additions and 103 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/spl/spl-debug.c
+1 -46
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@@ -40,7 +40,6 @@
#include <linux/kthread.h>
#include <linux/hardirq.h>
#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <sys/sysmacros.h>
#include <sys/proc.h>
#include <sys/debug.h>
@@ -108,7 +107,6 @@ char *trace_console_buffers[NR_CPUS][3];
struct rw_semaphore trace_sem;
atomic_t trace_tage_allocated = ATOMIC_INIT(0);
static int panic_notifier(struct notifier_block *, unsigned long, void *);
static int spl_debug_dump_all_pages(dumplog_priv_t *dp, char *);
static void trace_fini(void);
@@ -120,12 +118,6 @@ static unsigned int pages_factor[TCD_TYPE_MAX] = {
10 /* 10% pages for TCD_TYPE_IRQ */
};
static struct notifier_block spl_panic_notifier = {
notifier_call: panic_notifier,
next: NULL,
priority: 10000
};
const char *
spl_debug_subsys2str(int subsys)
{
@@ -1167,26 +1159,6 @@ spl_debug_mark_buffer(char *text)
}
EXPORT_SYMBOL(spl_debug_mark_buffer);
static int
panic_notifier(struct notifier_block *self,
unsigned long unused1, void *unused2)
{
if (spl_panic_in_progress)
return 0;
spl_panic_in_progress = 1;
mb();
if (!in_interrupt()) {
while (current->lock_depth >= 0)
unlock_kernel();
spl_debug_dumplog(DL_NOTHREAD | DL_SINGLE_CPU);
}
return 0;
}
static int
trace_init(int max_pages)
{
@@ -1255,14 +1227,7 @@ debug_init(void)
if (rc)
return rc;
#ifdef HAVE_ATOMIC_PANIC_NOTIFIER
atomic_notifier_chain_register(&panic_notifier_list,
&spl_panic_notifier);
#else
notifier_chain_register(&panic_notifier_list,
&spl_panic_notifier);
#endif
return rc;
return rc;
}
static void
@@ -1311,15 +1276,5 @@ trace_fini(void)
void
debug_fini(void)
{
#ifdef HAVE_ATOMIC_PANIC_NOTIFIER
atomic_notifier_chain_unregister(&panic_notifier_list,
&spl_panic_notifier);
#else
notifier_chain_unregister(&panic_notifier_list,
&spl_panic_notifier);
#endif
trace_fini();
return;
}