From: Alexey Dobriyan Move it into sysrq.c, along with the rest of the sysrq implementation. Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton --- drivers/char/sysrq.c | 30 ++++++++++++++++++++++++++++++ fs/proc/proc_misc.c | 26 -------------------------- 2 files changed, 30 insertions(+), 26 deletions(-) diff -puN drivers/char/sysrq.c~proc-move-sysrq-trigger-out-of-fs-proc drivers/char/sysrq.c --- a/drivers/char/sysrq.c~proc-move-sysrq-trigger-out-of-fs-proc +++ a/drivers/char/sysrq.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -533,3 +534,32 @@ int unregister_sysrq_key(int key, struct return __sysrq_swap_key_ops(key, NULL, op_p); } EXPORT_SYMBOL(unregister_sysrq_key); + +#ifdef CONFIG_PROC_FS +/* + * writing 'C' to /proc/sysrq-trigger is like sysrq-C + */ +static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + if (count) { + char c; + + if (get_user(c, buf)) + return -EFAULT; + __handle_sysrq(c, NULL, 0); + } + return count; +} + +static const struct file_operations proc_sysrq_trigger_operations = { + .write = write_sysrq_trigger, +}; + +static int __init sysrq_init(void) +{ + proc_create("sysrq-trigger", S_IWUSR, NULL, &proc_sysrq_trigger_operations); + return 0; +} +module_init(sysrq_init); +#endif diff -puN fs/proc/proc_misc.c~proc-move-sysrq-trigger-out-of-fs-proc fs/proc/proc_misc.c --- a/fs/proc/proc_misc.c~proc-move-sysrq-trigger-out-of-fs-proc +++ a/fs/proc/proc_misc.c @@ -46,7 +46,6 @@ #include #include #include -#include #include #include #include @@ -756,28 +755,6 @@ static int execdomains_read_proc(char *p return proc_calc_metrics(page, start, off, count, eof, len); } -#ifdef CONFIG_MAGIC_SYSRQ -/* - * writing 'C' to /proc/sysrq-trigger is like sysrq-C - */ -static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) -{ - if (count) { - char c; - - if (get_user(c, buf)) - return -EFAULT; - __handle_sysrq(c, NULL, 0); - } - return count; -} - -static const struct file_operations proc_sysrq_trigger_operations = { - .write = write_sysrq_trigger, -}; -#endif - #ifdef CONFIG_PROC_PAGE_MONITOR #define KPMSIZE sizeof(u64) #define KPMMASK (KPMSIZE - 1) @@ -986,7 +963,4 @@ void __init proc_misc_init(void) #ifdef CONFIG_PROC_VMCORE proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations); #endif -#ifdef CONFIG_MAGIC_SYSRQ - proc_create("sysrq-trigger", S_IWUSR, NULL, &proc_sysrq_trigger_operations); -#endif } _