Commit 8307fc25 authored by Akinobu Mita's avatar Akinobu Mita Committed by Linus Torvalds

fault-injection: cleanup simple attribute of stacktrace_depth

Minor cosmetic changes for simple attribute of stacktrace_depth:

 - use min_t()
 - reduce #ifdef by moving a function
 - do not use partly capitalized function name
Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6b16f748
...@@ -139,16 +139,6 @@ static int debugfs_ul_set(void *data, u64 val) ...@@ -139,16 +139,6 @@ static int debugfs_ul_set(void *data, u64 val)
return 0; return 0;
} }
#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
static int debugfs_ul_set_MAX_STACK_TRACE_DEPTH(void *data, u64 val)
{
*(unsigned long *)data =
val < MAX_STACK_TRACE_DEPTH ?
val : MAX_STACK_TRACE_DEPTH;
return 0;
}
#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
static int debugfs_ul_get(void *data, u64 *val) static int debugfs_ul_get(void *data, u64 *val)
{ {
*val = *(unsigned long *)data; *val = *(unsigned long *)data;
...@@ -164,16 +154,26 @@ static struct dentry *debugfs_create_ul(const char *name, mode_t mode, ...@@ -164,16 +154,26 @@ static struct dentry *debugfs_create_ul(const char *name, mode_t mode,
} }
#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER #ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
DEFINE_SIMPLE_ATTRIBUTE(fops_ul_MAX_STACK_TRACE_DEPTH, debugfs_ul_get,
debugfs_ul_set_MAX_STACK_TRACE_DEPTH, "%llu\n");
static struct dentry *debugfs_create_ul_MAX_STACK_TRACE_DEPTH( static int debugfs_stacktrace_depth_set(void *data, u64 val)
{
*(unsigned long *)data =
min_t(unsigned long, val, MAX_STACK_TRACE_DEPTH);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(fops_stacktrace_depth, debugfs_ul_get,
debugfs_stacktrace_depth_set, "%llu\n");
static struct dentry *debugfs_create_stacktrace_depth(
const char *name, mode_t mode, const char *name, mode_t mode,
struct dentry *parent, unsigned long *value) struct dentry *parent, unsigned long *value)
{ {
return debugfs_create_file(name, mode, parent, value, return debugfs_create_file(name, mode, parent, value,
&fops_ul_MAX_STACK_TRACE_DEPTH); &fops_stacktrace_depth);
} }
#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */ #endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
static int debugfs_atomic_t_set(void *data, u64 val) static int debugfs_atomic_t_set(void *data, u64 val)
...@@ -281,7 +281,7 @@ int init_fault_attr_dentries(struct fault_attr *attr, const char *name) ...@@ -281,7 +281,7 @@ int init_fault_attr_dentries(struct fault_attr *attr, const char *name)
#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER #ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
attr->dentries.stacktrace_depth_file = attr->dentries.stacktrace_depth_file =
debugfs_create_ul_MAX_STACK_TRACE_DEPTH( debugfs_create_stacktrace_depth(
"stacktrace-depth", mode, dir, &attr->stacktrace_depth); "stacktrace-depth", mode, dir, &attr->stacktrace_depth);
attr->dentries.require_start_file = attr->dentries.require_start_file =
......
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