diff options
| author | Matthew Wilcox <willy@linux.intel.com> | 2016-05-20 17:03:01 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-02 19:02:34 +0200 |
| commit | ba21aca8d1b3124fdb138bca1e4b0fccb832e5fe (patch) | |
| tree | 238bd2bdef118a8b76cac67b86ef9df86830393d /drivers | |
| parent | 9c91947451ddcf754feb3aa0e56560bd32fc3d1d (diff) | |
drivers/hwspinlock: use correct radix tree API
[ Upstream commit b76ba4af4ddd6a06f7f65769e7be1bc56556cdf5 ]
radix_tree_is_indirect_ptr() is an internal API. The correct call to
use is radix_tree_deref_retry() which has the appropriate unlikely()
annotation.
Fixes: c6400ba7e13a ("drivers/hwspinlock: fix race between radix tree insertion and lookup")
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jan Kara <jack@suse.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwspinlock/hwspinlock_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c index d50c701b19d6..4074441444fe 100644 --- a/drivers/hwspinlock/hwspinlock_core.c +++ b/drivers/hwspinlock/hwspinlock_core.c @@ -313,7 +313,7 @@ int of_hwspin_lock_get_id(struct device_node *np, int index) hwlock = radix_tree_deref_slot(slot); if (unlikely(!hwlock)) continue; - if (radix_tree_is_indirect_ptr(hwlock)) { + if (radix_tree_deref_retry(hwlock)) { slot = radix_tree_iter_retry(&iter); continue; } |