Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
for debugfs files.
Semantic patch information:
Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
imposes some significant overhead as compared to
DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().
Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
Signed-off-by: YueHaibing
---
arch/powerpc/mm/hash_utils_64.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index bc6be44..22f14e1 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1889,12 +1889,13 @@ static int hpt_order_set(void *data, u64 val)
return mmu_hash_ops.resize_hpt(val);
}
-DEFINE_SIMPLE_ATTRIBUTE(fops_hpt_order, hpt_order_get, hpt_order_set,
"%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(fops_hpt_order, hpt_order_get, hpt_order_set,
+"%llu\n");
static int __init hash64_debugfs(void)
{
- if (!debugfs_create_file("hpt_order", 0600, powerpc_debugfs_root,
-NULL, _hpt_order)) {
+ if (!debugfs_create_file_unsafe("hpt_order", 0600, powerpc_debugfs_root,
+ NULL, _hpt_order)) {
pr_err("lpar: unable to create hpt_order debugsfs file\n");
}
