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Subject[PATCH tip/core/rcu 01/30] nfs: Fix nfs_access_get_cached_rcu() sparse error
Date
From: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>

This patch fixes the following sparse error:
fs/nfs/dir.c:2353:14: error: incompatible types in comparison expression (different address spaces):
fs/nfs/dir.c:2353:14: struct list_head [noderef] <asn:4> *
fs/nfs/dir.c:2353:14: struct list_head *

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
fs/nfs/dir.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 1320288..55a29b0 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2383,7 +2383,7 @@ static int nfs_access_get_cached_rcu(struct inode *inode, const struct cred *cre
rcu_read_lock();
if (nfsi->cache_validity & NFS_INO_INVALID_ACCESS)
goto out;
- lh = rcu_dereference(nfsi->access_cache_entry_lru.prev);
+ lh = rcu_dereference(list_tail_rcu(&nfsi->access_cache_entry_lru));
cache = list_entry(lh, struct nfs_access_entry, lru);
if (lh == &nfsi->access_cache_entry_lru ||
cred_fscmp(cred, cache->cred) != 0)
--
2.9.5
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