diff options
| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-01-05 10:50:33 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-01-05 10:50:33 +0100 |
| commit | 353816f43d1fb340ff2d9a911dd5d0799c09f6a5 (patch) | |
| tree | 517290fd884d286fe2971137ac89f89e3567785a /drivers/char/sysrq.c | |
| parent | 160bbab3000dafccbe43688e48208cecf4deb879 (diff) | |
| parent | fe0bdec68b77020281dc814805edfe594ae89e0f (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/arm/mach-pxa/corgi.c
arch/arm/mach-pxa/poodle.c
arch/arm/mach-pxa/spitz.c
Diffstat (limited to 'drivers/char/sysrq.c')
| -rw-r--r-- | drivers/char/sysrq.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index ce0d9da52a8..94966edfb44 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -274,6 +274,22 @@ static struct sysrq_key_op sysrq_showstate_blocked_op = { .enable_mask = SYSRQ_ENABLE_DUMP, }; +#ifdef CONFIG_TRACING +#include <linux/ftrace.h> + +static void sysrq_ftrace_dump(int key, struct tty_struct *tty) +{ + ftrace_dump(); +} +static struct sysrq_key_op sysrq_ftrace_dump_op = { + .handler = sysrq_ftrace_dump, + .help_msg = "dumpZ-ftrace-buffer", + .action_msg = "Dump ftrace buffer", + .enable_mask = SYSRQ_ENABLE_DUMP, +}; +#else +#define sysrq_ftrace_dump_op (*(struct sysrq_key_op *)0) +#endif static void sysrq_handle_showmem(int key, struct tty_struct *tty) { @@ -406,7 +422,7 @@ static struct sysrq_key_op *sysrq_key_table[36] = { NULL, /* x */ /* y: May be registered on sparc64 for global register dump */ NULL, /* y */ - NULL /* z */ + &sysrq_ftrace_dump_op, /* z */ }; /* key2index calculation, -1 on invalid index */ |