forked from luck/tmp_suning_uos_patched
b2b1866006
2.6.12-rc6-mm1 has a few remaining synchronize_kernel()s, some (but not all) in comments. This patch changes these synchronize_kernel() calls (and comments) to synchronize_rcu() or synchronize_sched() as follows: - arch/x86_64/kernel/mce.c mce_read(): change to synchronize_sched() to handle races with machine-check exceptions (synchronize_rcu() would not cut it given RCU implementations intended for hardcore realtime use. - drivers/input/serio/i8042.c i8042_stop(): change to synchronize_sched() to handle races with i8042_interrupt() interrupt handler. Again, synchronize_rcu() would not cut it given RCU implementations intended for hardcore realtime use. - include/*/kdebug.h comments: change to synchronize_sched() to handle races with NMIs. As before, synchronize_rcu() would not cut it... - include/linux/list.h comment: change to synchronize_rcu(), since this comment is for list_del_rcu(). - security/keys/key.c unregister_key_type(): change to synchronize_rcu(), since this is interacting with RCU read side. - security/keys/process_keys.c install_session_keyring(): change to synchronize_rcu(), since this is interacting with RCU read side. Signed-off-by: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
#ifndef _SPARC64_KDEBUG_H
|
|
#define _SPARC64_KDEBUG_H
|
|
|
|
/* Nearly identical to x86_64/i386 code. */
|
|
|
|
#include <linux/notifier.h>
|
|
|
|
struct pt_regs;
|
|
|
|
struct die_args {
|
|
struct pt_regs *regs;
|
|
const char *str;
|
|
long err;
|
|
int trapnr;
|
|
int signr;
|
|
};
|
|
|
|
/* Note - you should never unregister because that can race with NMIs.
|
|
* If you really want to do it first unregister - then synchronize_sched
|
|
* - then free.
|
|
*/
|
|
int register_die_notifier(struct notifier_block *nb);
|
|
extern struct notifier_block *sparc64die_chain;
|
|
|
|
extern void bad_trap(struct pt_regs *, long);
|
|
|
|
/* Grossly misnamed. */
|
|
enum die_val {
|
|
DIE_OOPS = 1,
|
|
DIE_DEBUG, /* ta 0x70 */
|
|
DIE_DEBUG_2, /* ta 0x71 */
|
|
DIE_DIE,
|
|
DIE_TRAP,
|
|
DIE_TRAP_TL1,
|
|
DIE_GPF,
|
|
DIE_CALL,
|
|
DIE_PAGE_FAULT,
|
|
};
|
|
|
|
static inline int notify_die(enum die_val val,char *str, struct pt_regs *regs,
|
|
long err, int trap, int sig)
|
|
{
|
|
struct die_args args = { .regs = regs,
|
|
.str = str,
|
|
.err = err,
|
|
.trapnr = trap,
|
|
.signr = sig };
|
|
|
|
return notifier_call_chain(&sparc64die_chain, val, &args);
|
|
}
|
|
|
|
#endif
|