The patch titled
Extract and use wake_up_klogd()
has been added to the -mm tree. Its filename is
extract-and-use-wake_up_klogd.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Extract and use wake_up_klogd()
From: Kirill Korotaev <dev@xxxxx>
Remove hack with printing space to wake up klogd. Use explicit
wake_up_klogd().
See earlier discussion
http://groups.google.com/group/fa.linux.kernel/browse_frm/thread/75f496668409f58d/1a8f28983a51e1ff?lnk=st&q=wake_up_klogd+group%3Afa.linux.kernel&rnum=2#1a8f28983a51e1ff
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/kernel.h | 1 +
kernel/printk.c | 10 ++++++++--
lib/bust_spinlocks.c | 10 +---------
3 files changed, 10 insertions(+), 11 deletions(-)
diff -puN include/linux/kernel.h~extract-and-use-wake_up_klogd include/linux/kernel.h
--- a/include/linux/kernel.h~extract-and-use-wake_up_klogd
+++ a/include/linux/kernel.h
@@ -176,6 +176,7 @@ static inline void console_verbose(void)
}
extern void bust_spinlocks(int yes);
+extern void wake_up_klogd(void);
extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
extern int panic_timeout;
extern int panic_on_oops;
diff -puN kernel/printk.c~extract-and-use-wake_up_klogd kernel/printk.c
--- a/kernel/printk.c~extract-and-use-wake_up_klogd
+++ a/kernel/printk.c
@@ -783,6 +783,12 @@ int is_console_locked(void)
return console_locked;
}
+void wake_up_klogd(void)
+{
+ if (!oops_in_progress && waitqueue_active(&log_wait))
+ wake_up_interruptible(&log_wait);
+}
+
/**
* release_console_sem - unlock the console system
*
@@ -825,8 +831,8 @@ void release_console_sem(void)
console_locked = 0;
up(&console_sem);
spin_unlock_irqrestore(&logbuf_lock, flags);
- if (wake_klogd && !oops_in_progress && waitqueue_active(&log_wait))
- wake_up_interruptible(&log_wait);
+ if (wake_klogd)
+ wake_up_klogd();
}
EXPORT_SYMBOL(release_console_sem);
diff -puN lib/bust_spinlocks.c~extract-and-use-wake_up_klogd lib/bust_spinlocks.c
--- a/lib/bust_spinlocks.c~extract-and-use-wake_up_klogd
+++ a/lib/bust_spinlocks.c
@@ -19,19 +19,11 @@ void __attribute__((weak)) bust_spinlock
if (yes) {
oops_in_progress = 1;
} else {
- int loglevel_save = console_loglevel;
#ifdef CONFIG_VT
unblank_screen();
#endif
oops_in_progress = 0;
- /*
- * OK, the message is on the console. Now we call printk()
- * without oops_in_progress set so that printk() will give klogd
- * and the blanked console a poke. Hold onto your hats...
- */
- console_loglevel = 15; /* NMI oopser may have shut the console up */
- printk(" ");
- console_loglevel = loglevel_save;
+ wake_up_klogd();
}
}
_
Patches currently in -mm which might be from dev@xxxxx are
consolidate-bust_spinlocks.patch
extract-and-use-wake_up_klogd.patch
nsproxy-externalizes-exit_task_namespaces.patch
user-namespace-add-the-framework.patch
user-namespace-add-the-framework-fix.patch
user-ns-add-user_namespace-ptr-to-vfsmount.patch
user-ns-hook-permission.patch
user-ns-prepare-copy_tree-copy_mnt-and-their-callers-to-handle-errs.patch
user-ns-prepare-copy_tree-copy_mnt-and-their-callers-to-handle-errs-fix.patch
user-ns-implement-shared-mounts.patch
user_ns-handle-file-sigio.patch
user_ns-handle-file-sigio-fix.patch
user-ns-implement-user-ns-unshare.patch
user-ns-implement-user-ns-unshare-tidy.patch
user-ns-implement-user-ns-unshare-remove-config_user_ns.patch
sysctl-move-utsname-sysctls-to-their-own-file.patch
sysctl-move-sysv-ipc-sysctls-to-their-own-file.patch
-
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