Messages in this thread Patch in this message | | | From | "Uladzislau Rezki (Sony)" <> | Subject | [PATCH 3/9] fs: nfs: sysfs: Switch to kvfree_rcu() API | Date | Wed, 24 Nov 2021 12:03:02 +0100 |
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From: Uladzislau Rezki <uladzislau.rezki@sony.com>
Instead of invoking a synchronize_rcu() to free a pointer after a grace period we can directly make use of new API that does the same but in more efficient way.
CC: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Uladzislau Rezki <uladzislau.rezki@sony.com> --- fs/nfs/sysfs.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/fs/nfs/sysfs.c b/fs/nfs/sysfs.c index 8cb70755e3c9..ff88d5d58e1e 100644 --- a/fs/nfs/sysfs.c +++ b/fs/nfs/sysfs.c @@ -113,10 +113,9 @@ static ssize_t nfs_netns_identifier_store(struct kobject *kobj, if (!p) return -ENOMEM; old = rcu_dereference_protected(xchg(&c->identifier, (char __rcu *)p), 1); - if (old) { - synchronize_rcu(); - kfree(old); - } + if (old) + kvfree_rcu(old); + return count; } -- 2.30.2
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