This function acts as an out-of-line helper for is_local_mountpoint
is only called after the latter verifies the dentry is not a mountpoint.
There's no semantic changes and the resulting object code is smaller:
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-26 (-26)
Function old new delta
__is_local_mountpoint 147 121 -26
Total: Before=34161, After=34135, chg -0.08%
Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
---
Al,
I experimented with adding likely in the inline helper but this didn't change the
generated code for me so simply removing the check is sufficient.
fs/namespace.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 85b5f7bea82e..07b5fbe513ec 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -669,9 +669,6 @@ bool __is_local_mountpoint(struct dentry *dentry)
struct mount *mnt;
bool is_covered = false;
- if (!d_mountpoint(dentry))
- goto out;
-
down_read(&namespace_sem);
list_for_each_entry(mnt, &ns->list, mnt_list) {
is_covered = (mnt->mnt_mountpoint == dentry);
@@ -679,7 +676,7 @@ bool __is_local_mountpoint(struct dentry *dentry)
break;
}
up_read(&namespace_sem);
-out:
+
return is_covered;
}
--
2.17.1
