diff options
| author | Gilad Ben-Yossef <gilad@benyossef.com> | 2017-10-18 09:00:46 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-11-03 15:11:21 +0100 |
| commit | a5186b85fe7f4413324054b9b97c2f26056f9bbb (patch) | |
| tree | 972d5c4ec7b49a5c2e72049619cdd9e04690d2ef /fs/cifs | |
| parent | dm: move dm-verity to generic async completion (diff) | |
| download | linux-a5186b85fe7f4413324054b9b97c2f26056f9bbb.tar.xz linux-a5186b85fe7f4413324054b9b97c2f26056f9bbb.zip | |
cifs: move to generic async completion
cifs starts an async. crypto op and waits for their completion.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/smb2ops.c | 30 |
1 files changed, 4 insertions, 26 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 0dafdbae1f8c..bed7c7651294 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2068,22 +2068,6 @@ init_sg(struct smb_rqst *rqst, u8 *sign) return sg; } -struct cifs_crypt_result { - int err; - struct completion completion; -}; - -static void cifs_crypt_complete(struct crypto_async_request *req, int err) -{ - struct cifs_crypt_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static int smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) { @@ -2124,12 +2108,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) struct aead_request *req; char *iv; unsigned int iv_len; - struct cifs_crypt_result result = {0, }; + DECLARE_CRYPTO_WAIT(wait); struct crypto_aead *tfm; unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); - init_completion(&result.completion); - rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); if (rc) { cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__, @@ -2189,14 +2171,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) aead_request_set_ad(req, assoc_data_len); aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - cifs_crypt_complete, &result); + crypto_req_done, &wait); - rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req); - - if (rc == -EINPROGRESS || rc == -EBUSY) { - wait_for_completion(&result.completion); - rc = result.err; - } + rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) + : crypto_aead_decrypt(req), &wait); if (!rc && enc) memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); |