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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: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -139,16 +139,6 @@ static int debugfs_ul_set(void *data, u64 val)
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return 0;
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}
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#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
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static int debugfs_ul_set_MAX_STACK_TRACE_DEPTH(void *data, u64 val)
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{
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*(unsigned long *)data =
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val < MAX_STACK_TRACE_DEPTH ?
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val : MAX_STACK_TRACE_DEPTH;
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return 0;
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}
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#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
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static int debugfs_ul_get(void *data, u64 *val)
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{
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*val = *(unsigned long *)data;
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@ -164,16 +154,26 @@ static struct dentry *debugfs_create_ul(const char *name, mode_t mode,
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}
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#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
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DEFINE_SIMPLE_ATTRIBUTE(fops_ul_MAX_STACK_TRACE_DEPTH, debugfs_ul_get,
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debugfs_ul_set_MAX_STACK_TRACE_DEPTH, "%llu\n");
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static struct dentry *debugfs_create_ul_MAX_STACK_TRACE_DEPTH(
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static int debugfs_stacktrace_depth_set(void *data, u64 val)
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{
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*(unsigned long *)data =
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min_t(unsigned long, val, MAX_STACK_TRACE_DEPTH);
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return 0;
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}
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DEFINE_SIMPLE_ATTRIBUTE(fops_stacktrace_depth, debugfs_ul_get,
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debugfs_stacktrace_depth_set, "%llu\n");
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static struct dentry *debugfs_create_stacktrace_depth(
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const char *name, mode_t mode,
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struct dentry *parent, unsigned long *value)
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{
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return debugfs_create_file(name, mode, parent, value,
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&fops_ul_MAX_STACK_TRACE_DEPTH);
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&fops_stacktrace_depth);
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}
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#endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
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static int debugfs_atomic_t_set(void *data, u64 val)
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@ -281,7 +281,7 @@ int init_fault_attr_dentries(struct fault_attr *attr, const char *name)
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#ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
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attr->dentries.stacktrace_depth_file =
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debugfs_create_ul_MAX_STACK_TRACE_DEPTH(
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debugfs_create_stacktrace_depth(
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"stacktrace-depth", mode, dir, &attr->stacktrace_depth);
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attr->dentries.require_start_file =
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