diff options
Diffstat (limited to 'fs/crypto/inline_crypt.c')
| -rw-r--r-- | fs/crypto/inline_crypt.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/crypto/inline_crypt.c b/fs/crypto/inline_crypt.c index d7aecadf33c1..dfb06375099a 100644 --- a/fs/crypto/inline_crypt.c +++ b/fs/crypto/inline_crypt.c @@ -176,8 +176,10 @@ int fscrypt_prepare_inline_crypt_key(struct fscrypt_prepared_key *prep_key, } } /* - * Pairs with READ_ONCE() in fscrypt_is_key_prepared(). (Only matters - * for the per-mode keys, which are shared by multiple inodes.) + * Pairs with the smp_load_acquire() in fscrypt_is_key_prepared(). + * I.e., here we publish ->blk_key with a RELEASE barrier so that + * concurrent tasks can ACQUIRE it. Note that this concurrency is only + * possible for per-mode keys, not for per-file keys. */ smp_store_release(&prep_key->blk_key, blk_key); return 0; |