The patch titled
Subject: lib/generic-radix-tree.c: remove unneeded __rcu
has been added to the -mm tree. Its filename is
lib-generic-radix-treec-remove-unneeded-__rcu.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/lib-generic-radix-treec-remove-unneeded-__rcu.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/lib-generic-radix-treec-remove-unneeded-__rcu.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
Subject: lib/generic-radix-tree.c: remove unneeded __rcu
struct __genradix is defined as having its member 'root'
annotated as __rcu. But in the corresponding API RCU is not used.
Sparse reports this type mismatch as:
lib/generic-radix-tree.c:56:35: warning: incorrect type in initializer (different address spaces)
lib/generic-radix-tree.c:56:35: expected struct genradix_root *r
lib/generic-radix-tree.c:56:35: got struct genradix_root [noderef] <asn:4> *__val
with 6 other ones.
So, correct root's type by removing this unneeded __rcu.
Link: http://lkml.kernel.org/r/20200621161745.55396-1-luc.vanoostenryck@xxxxxxxxx
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/generic-radix-tree.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/generic-radix-tree.h~lib-generic-radix-treec-remove-unneeded-__rcu
+++ a/include/linux/generic-radix-tree.h
@@ -44,7 +44,7 @@
struct genradix_root;
struct __genradix {
- struct genradix_root __rcu *root;
+ struct genradix_root *root;
};
/*
_
Patches currently in -mm which might be from luc.vanoostenryck@xxxxxxxxx are
fix-annotation-of-ioreadwrite1632be.patch
lib-generic-radix-treec-remove-unneeded-__rcu.patch
