diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2019-11-18 11:26:07 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 18:00:53 +0100 |
| commit | 988f701a805bf980e70a557894d26564e10fc1a6 (patch) | |
| tree | 21711c4fe3e32c4f4a3d462b08311c228ab68267 /scripts/Makefile.build | |
| parent | 7fdedf0c8d8eb93390c94533057d0666a10efd9e (diff) | |
memfd: Use radix_tree_deref_slot_protected to avoid the warning.
The commit 391d4ee568b5 ("memfd: Fix locking when tagging pins")
introduces the following warning messages.
*WARNING: suspicious RCU usage in memfd_wait_for_pins*
It is because we still use radix_tree_deref_slot without read_rcu_lock.
We should use radix_tree_deref_slot_protected instead in the case.
Cc: stable@vger.kernel.org
Fixes: 391d4ee568b5 ("memfd: Fix locking when tagging pins")
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/Makefile.build')
0 files changed, 0 insertions, 0 deletions