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| author | David Vrabel <david.vrabel@csr.com> | 2009-01-02 13:17:13 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2009-01-02 13:17:13 +0000 |
| commit | b21a207141d83a06abc5f492b80204602e02ca44 (patch) | |
| tree | f0152cde543008c72d7eb5c12c18095ad92785e6 /drivers/char/sysrq.c | |
| parent | 3af373021fa32f8f787bfbdcc1a9277a287bde4e (diff) | |
| parent | b58602a4bac012b5f4fc12fe6b46ab237b610d5d (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Conflicts:
drivers/uwb/wlp/eda.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 */ |