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().
Signed-off-by: Chen Wandun <chenwandun@xxxxxxxxxx>
---
fs/ceph/debugfs.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index c281f32..60a0f1a 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -243,8 +243,8 @@ static int congestion_kb_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
- congestion_kb_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
+ congestion_kb_set, "%llu\n");
void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
@@ -264,11 +264,11 @@ void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
dout("ceph_fs_debugfs_init\n");
fsc->debugfs_congestion_kb =
- debugfs_create_file("writeback_congestion_kb",
- 0600,
- fsc->client->debugfs_dir,
- fsc,
- &congestion_kb_fops);
+ debugfs_create_file_unsafe("writeback_congestion_kb",
+ 0600,
+ fsc->client->debugfs_dir,
+ fsc,
+ &congestion_kb_fops);
snprintf(name, sizeof(name), "../../bdi/%s",
dev_name(fsc->sb->s_bdi->dev));
--
2.7.4
