The patch titled Subject: stacktrace: introduce snprint_stack_trace for buffer output has been removed from the -mm tree. Its filename was stacktrace-introduce-snprint_stack_trace-for-buffer-output.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Subject: stacktrace: introduce snprint_stack_trace for buffer output Current stacktrace only have the function for console output. page_owner that will be introduced in following patch needs to print the output of stacktrace into the buffer for our own output format so so new function, snprint_stack_trace(), is needed. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Cc: Dave Hansen <dave@xxxxxxxx> Cc: Michal Nazarewicz <mina86@xxxxxxxxxx> Cc: Jungsoo Son <jungsoo.son@xxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/stacktrace.h | 5 +++++ kernel/stacktrace.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff -puN include/linux/stacktrace.h~stacktrace-introduce-snprint_stack_trace-for-buffer-output include/linux/stacktrace.h --- a/include/linux/stacktrace.h~stacktrace-introduce-snprint_stack_trace-for-buffer-output +++ a/include/linux/stacktrace.h @@ -1,6 +1,8 @@ #ifndef __LINUX_STACKTRACE_H #define __LINUX_STACKTRACE_H +#include <linux/types.h> + struct task_struct; struct pt_regs; @@ -20,6 +22,8 @@ extern void save_stack_trace_tsk(struct struct stack_trace *trace); extern void print_stack_trace(struct stack_trace *trace, int spaces); +extern int snprint_stack_trace(char *buf, size_t size, + struct stack_trace *trace, int spaces); #ifdef CONFIG_USER_STACKTRACE_SUPPORT extern void save_stack_trace_user(struct stack_trace *trace); @@ -32,6 +36,7 @@ extern void save_stack_trace_user(struct # define save_stack_trace_tsk(tsk, trace) do { } while (0) # define save_stack_trace_user(trace) do { } while (0) # define print_stack_trace(trace, spaces) do { } while (0) +# define snprint_stack_trace(buf, size, trace, spaces) do { } while (0) #endif #endif diff -puN kernel/stacktrace.c~stacktrace-introduce-snprint_stack_trace-for-buffer-output kernel/stacktrace.c --- a/kernel/stacktrace.c~stacktrace-introduce-snprint_stack_trace-for-buffer-output +++ a/kernel/stacktrace.c @@ -25,6 +25,38 @@ void print_stack_trace(struct stack_trac } EXPORT_SYMBOL_GPL(print_stack_trace); +int snprint_stack_trace(char *buf, size_t size, + struct stack_trace *trace, int spaces) +{ + int i; + unsigned long ip; + int generated; + int total = 0; + + if (WARN_ON(!trace->entries)) + return 0; + + for (i = 0; i < trace->nr_entries; i++) { + ip = trace->entries[i]; + generated = snprintf(buf, size, "%*c[<%p>] %pS\n", + 1 + spaces, ' ', (void *) ip, (void *) ip); + + total += generated; + + /* Assume that generated isn't a negative number */ + if (generated >= size) { + buf += size; + size = 0; + } else { + buf += generated; + size -= generated; + } + } + + return total; +} +EXPORT_SYMBOL_GPL(snprint_stack_trace); + /* * Architectures that do not implement save_stack_trace_tsk or * save_stack_trace_regs get this weak alias and a once-per-bootup warning _ Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are origin.patch mm-cma-split-cma-reserved-in-dmesg-log.patch fs-proc-include-cma-info-in-proc-meminfo.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html