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authorJason Wessel <jason.wessel@windriver.com>2010-07-21 19:27:07 -0500
committerJason Wessel <jason.wessel@windriver.com>2010-07-21 19:27:07 -0500
commitedd63cb6b91024332d6983fc51058ac1ef0c081e (patch)
tree2df04fc5dc35899aa7d4f4c52197f7b492c16c8b
parentb0679c63db655fa12007558e267bc0eb1d486fdb (diff)
downloadop-kernel-dev-edd63cb6b91024332d6983fc51058ac1ef0c081e.zip
op-kernel-dev-edd63cb6b91024332d6983fc51058ac1ef0c081e.tar.gz
sysrq,kdb: Use __handle_sysrq() for kdb's sysrq function
The kdb code should not toggle the sysrq state in case an end user wants to try and resume the normal kernel execution. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-rw-r--r--drivers/char/sysrq.c2
-rw-r--r--include/linux/sysrq.h1
-rw-r--r--kernel/debug/kdb/kdb_main.c3
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d64e3a..878ac0c 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -493,7 +493,7 @@ static void __sysrq_put_key_op(int key, struct sysrq_key_op *op_p)
sysrq_key_table[i] = op_p;
}
-static void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
{
struct sysrq_key_op *op_p;
int orig_log_level;
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 4496322..609e8ca 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -45,6 +45,7 @@ struct sysrq_key_op {
*/
void handle_sysrq(int key, struct tty_struct *tty);
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask);
int register_sysrq_key(int key, struct sysrq_key_op *op);
int unregister_sysrq_key(int key, struct sysrq_key_op *op);
struct sysrq_key_op *__sysrq_get_key_op(int key);
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 7e9bfd5..ebe4a28 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1820,9 +1820,8 @@ static int kdb_sr(int argc, const char **argv)
{
if (argc != 1)
return KDB_ARGCOUNT;
- sysrq_toggle_support(1);
kdb_trap_printk++;
- handle_sysrq(*argv[1], NULL);
+ __handle_sysrq(*argv[1], NULL, 0);
kdb_trap_printk--;
return 0;
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