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authorIngo Molnar <mingo@elte.hu>2009-04-06 09:02:57 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-06 09:02:57 +0200
commitf541ae326fa120fa5c57433e4d9a133df212ce41 (patch)
treebdbd94ec72cfc601118051cb35e8617d55510177 /drivers/char/sysrq.c
parente255357764f92afcafafbd4879b222b8c752065a (diff)
parent0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c (diff)
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Merge branch 'linus' into perfcounters/core-v2
Merge reason: we have gathered quite a few conflicts, need to merge upstream Conflicts: arch/powerpc/kernel/Makefile arch/x86/ia32/ia32entry.S arch/x86/include/asm/hardirq.h arch/x86/include/asm/unistd_32.h arch/x86/include/asm/unistd_64.h arch/x86/kernel/cpu/common.c arch/x86/kernel/irq.c arch/x86/kernel/syscall_table_32.S arch/x86/mm/iomap_32.c include/linux/sched.h kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/char/sysrq.c')
-rw-r--r--drivers/char/sysrq.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index fa71b84f217..0540d5de2c1 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -36,7 +36,7 @@
#include <linux/vt_kern.h>
#include <linux/workqueue.h>
#include <linux/kexec.h>
-#include <linux/irq.h>
+#include <linux/interrupt.h>
#include <linux/hrtimer.h>
#include <linux/oom.h>
@@ -285,7 +285,7 @@ static void sysrq_ftrace_dump(int key, struct tty_struct *tty)
}
static struct sysrq_key_op sysrq_ftrace_dump_op = {
.handler = sysrq_ftrace_dump,
- .help_msg = "dumpZ-ftrace-buffer",
+ .help_msg = "dump-ftrace-buffer(Z)",
.action_msg = "Dump ftrace buffer",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
@@ -348,6 +348,19 @@ static struct sysrq_key_op sysrq_moom_op = {
.enable_mask = SYSRQ_ENABLE_SIGNAL,
};
+#ifdef CONFIG_BLOCK
+static void sysrq_handle_thaw(int key, struct tty_struct *tty)
+{
+ emergency_thaw_all();
+}
+static struct sysrq_key_op sysrq_thaw_op = {
+ .handler = sysrq_handle_thaw,
+ .help_msg = "thaw-filesystems(J)",
+ .action_msg = "Emergency Thaw of all frozen filesystems",
+ .enable_mask = SYSRQ_ENABLE_SIGNAL,
+};
+#endif
+
static void sysrq_handle_kill(int key, struct tty_struct *tty)
{
send_sig_all(SIGKILL);
@@ -398,9 +411,13 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
&sysrq_moom_op, /* f */
/* g: May be registered by ppc for kgdb */
NULL, /* g */
- NULL, /* h */
+ NULL, /* h - reserved for help */
&sysrq_kill_op, /* i */
+#ifdef CONFIG_BLOCK
+ &sysrq_thaw_op, /* j */
+#else
NULL, /* j */
+#endif
&sysrq_SAK_op, /* k */
#ifdef CONFIG_SMP
&sysrq_showallcpus_op, /* l */