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Subjectswsusp: cleanups from Florent, fix usb
Hi!

This contains some trivial cleanups from Florent, usb fix (also from
him) and docs updates (also...). Please apply,
Pavel

--- linux-swsusp.test/Documentation/kernel-parameters.txt Thu Apr 18 22:45:20 2002
+++ linux-swsusp/Documentation/kernel-parameters.txt Tue May 28 21:55:53 2002
@@ -45,6 +45,7 @@
SERIAL Serial support is enabled.
SMP The kernel is an SMP kernel.
SOUND Appropriate sound system support is enabled.
+ SWSUSP Software suspension is enabled.
V4L Video For Linux support is enabled.
VGA The VGA console has been enabled.
VT Virtual terminal support is enabled.
@@ -392,6 +393,8 @@
initial RAM disk.

nointroute [IA-64]
+
+ noresume [SWSUSP] Disables resume and restore original swap space.

no-scroll [VGA]

@@ -518,6 +521,8 @@
reboot= [BUGS=ix86]

reserve= [KNL,BUGS] force the kernel to ignore some iomem area.
+
+ resume= [SWSUSP] specify the partition device for software suspension.

riscom8= [HW,SERIAL]

--- linux-swsusp.test/drivers/block/loop.c Sun May 26 19:31:49 2002
+++ linux-swsusp/drivers/block/loop.c Tue May 28 21:57:18 2002
@@ -535,7 +535,9 @@
daemonize();

sprintf(current->comm, "loop%d", lo->lo_number);
- current->flags |= PF_IOTHREAD;
+ current->flags |= PF_IOTHREAD; /* loop can be used in an encrypted device
+ hence, it mustn't be stopped at all because it could
+ be indirectly used during suspension */

spin_lock_irq(&current->sigmask_lock);
sigfillset(&current->blocked);
--- linux-swsusp.test/drivers/usb/core/hub.c Sun May 26 19:31:57 2002
+++ linux-swsusp/drivers/usb/core/hub.c Tue May 28 21:41:56 2002
@@ -25,6 +25,7 @@
#endif
#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
+#include <linux/suspend.h>

#include <asm/semaphore.h>
#include <asm/uaccess.h>
@@ -1064,6 +1065,8 @@
/* Send me a signal to get me die (for debugging) */
do {
usb_hub_events();
+ if (current->flags & PF_FREEZE)
+ refrigerator(PF_IOTHREAD);
wait_event_interruptible(khubd_wait, !list_empty(&hub_event_list));
} while (!signal_pending(current));

--- linux-swsusp.test/fs/jbd/journal.c Sun May 26 19:32:00 2002
+++ linux-swsusp/fs/jbd/journal.c Tue May 28 22:10:32 2002
@@ -226,7 +226,6 @@
journal->j_commit_interval / HZ);
list_add(&journal->j_all_journals, &all_journals);

- current->flags |= PF_KERNTHREAD;
/* And now, wait forever for commit wakeup events. */
while (1) {
if (journal->j_flags & JFS_UNMOUNT)
--- linux-swsusp.test/fs/reiserfs/journal.c Sun May 26 19:32:02 2002
+++ linux-swsusp/fs/reiserfs/journal.c Tue May 28 22:10:21 2002
@@ -1888,7 +1888,6 @@
spin_unlock_irq(&current->sigmask_lock);

sprintf(current->comm, "kreiserfsd") ;
- current->flags |= PF_KERNTHREAD;
lock_kernel() ;
while(1) {

--- linux-swsusp.test/kernel/suspend.c Tue May 28 10:37:06 2002
+++ linux-swsusp/kernel/suspend.c Tue May 28 21:51:38 2002
@@ -1,5 +1,5 @@
/*
- * linux/kernel/swsusp.c
+ * linux/kernel/suspend.c
*
* This file is to realize architecture-independent
* machine suspend feature using pretty near only high-level routines
@@ -73,7 +73,7 @@
we probably do not take enough locks for switching consoles, etc,
so bad things might happen.
*/
-#ifndef CONFIG_VT
+#if !defined(CONFIG_VT) || !defined(CONFIG_VT_CONSOLE)
#undef SUSPEND_CONSOLE
#endif

@@ -859,22 +859,22 @@
void do_software_suspend(void)
{
arch_prepare_suspend();
- if (!prepare_suspend_console()) {
- if (!prepare_suspend_processes()) {
- free_some_memory();
-
- /* No need to invalidate any vfsmnt list -- they will be valid after resume, anyway.
- *
- * We sync here -- so you have consistent filesystem state when things go wrong.
- * -- so that noone writes to disk after we do atomic copy of data.
- */
- PRINTS("Syncing disks before copy\n");
- do_suspend_sync();
- if(drivers_suspend()==0)
- do_magic(0); /* This function returns after machine woken up from resume */
- PRINTR("Restarting processes...\n");
- thaw_processes();
- }
+ if (prepare_suspend_console())
+ printk( "Can't allocate a console... proceeding\n");
+ if (!prepare_suspend_processes()) {
+ free_some_memory();
+
+ /* No need to invalidate any vfsmnt list -- they will be valid after resume, anyway.
+ *
+ * We sync here -- so you have consistent filesystem state when things go wrong.
+ * -- so that noone writes to disk after we do atomic copy of data.
+ */
+ PRINTS("Syncing disks before copy\n");
+ do_suspend_sync();
+ if(drivers_suspend()==0)
+ do_magic(0); /* This function returns after machine woken up from resume */
+ PRINTR("Restarting processes...\n");
+ thaw_processes();
}
software_suspend_enabled = 1;
MDELAY(1000);
--- linux-swsusp.test/mm/pdflush.c Sun May 26 20:56:18 2002
+++ linux-swsusp/mm/pdflush.c Tue May 28 22:10:42 2002
@@ -91,7 +91,7 @@
recalc_sigpending();
spin_unlock_irq(&current->sigmask_lock);

- current->flags |= PF_FLUSHER | PF_KERNTHREAD;
+ current->flags |= PF_FLUSHER;
my_work->fn = NULL;
my_work->who = current;

--- linux-swsusp.test/mm/vmscan.c Sun May 26 19:32:05 2002
+++ linux-swsusp/mm/vmscan.c Tue May 28 22:08:36 2002
@@ -782,7 +782,7 @@
* us from recursively trying to free more memory as we're
* trying to free the first piece of memory in the first place).
*/
- tsk->flags |= PF_MEMALLOC | PF_KERNTHREAD;
+ tsk->flags |= PF_MEMALLOC;

/*
* Kswapd main loop.
--
(about SSSCA) "I don't say this lightly. However, I really think that the U.S.
no longer is classifiable as a democracy, but rather as a plutocracy." --hpa
-
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