fscrypt dentries are always valid once the key is available. Since the
key cannot be removed without evicting the dentry, we don't need to keep
retrying to revalidate it.
Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxx>
---
fs/crypto/fname.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 7b3fc189593a..0457ba2d7d76 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -591,8 +591,15 @@ int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
* reverting to no-key names without evicting the directory's inode
* -- which implies eviction of the dentries in the directory.
*/
- if (!(dentry->d_flags & DCACHE_NOKEY_NAME))
+ if (!(dentry->d_flags & DCACHE_NOKEY_NAME)) {
+ /*
+ * If fscrypt is the only feature requiring
+ * revalidation for this dentry, we can just disable it.
+ */
+ if (dentry->d_op->d_revalidate == &fscrypt_d_revalidate)
+ d_set_always_valid(dentry);
return 1;
+ }
/*
* No-key name; valid if the directory's key is still unavailable.
--
2.43.0
