[PATCH v4 11/19] fscrypt: move to generic async completion
fscrypt starts several async. crypto ops and waiting for them to complete. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef--- fs/crypto/crypto.c | 28 fs/crypto/fname.c | 36 ++-- fs/crypto/fscrypt_private.h | 10 -- fs/crypto/keyinfo.c | 21 +++-- 4 files changed, 13 insertions(+), 82 deletions(-) diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index c7835df..80a3cad 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -126,21 +126,6 @@ struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags) } EXPORT_SYMBOL(fscrypt_get_ctx); -/** - * page_crypt_complete() - completion callback for page crypto - * @req: The asynchronous cipher request context - * @res: The result of the cipher operation - */ -static void page_crypt_complete(struct crypto_async_request *req, int res) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (res == -EINPROGRESS) - return; - ecr->res = res; - complete(>completion); -} - int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u64 lblk_num, struct page *src_page, struct page *dest_page, unsigned int len, @@ -151,7 +136,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u8 padding[FS_IV_SIZE - sizeof(__le64)]; } iv; struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct scatterlist dst, src; struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; @@ -179,7 +164,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, skcipher_request_set_callback( req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - page_crypt_complete, ); + crypto_req_done, ); sg_init_table(, 1); sg_set_page(, dest_page, len, offs); @@ -187,14 +172,9 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, sg_set_page(, src_page, len, offs); skcipher_request_set_crypt(req, , , len, ); if (rw == FS_DECRYPT) - res = crypto_skcipher_decrypt(req); + res = crypto_wait_req(crypto_skcipher_decrypt(req), ); else - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - BUG_ON(req->base.data != ); - wait_for_completion(); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), ); skcipher_request_free(req); if (res) { printk_ratelimited(KERN_ERR diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c index ad9f814..a80a0d3 100644 --- a/fs/crypto/fname.c +++ b/fs/crypto/fname.c @@ -15,21 +15,6 @@ #include "fscrypt_private.h" /** - * fname_crypt_complete() - completion callback for filename crypto - * @req: The asynchronous cipher request context - * @res: The result of the cipher operation - */ -static void fname_crypt_complete(struct crypto_async_request *req, int res) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (res == -EINPROGRESS) - return; - ecr->res = res; - complete(>completion); -} - -/** * fname_encrypt() - encrypt a filename * * The caller must have allocated sufficient memory for the @oname string. @@ -40,7 +25,7 @@ static int fname_encrypt(struct inode *inode, const struct qstr *iname, struct fscrypt_str *oname) { struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; int res = 0; @@ -76,17 +61,12 @@ static int fname_encrypt(struct inode *inode, } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - fname_crypt_complete, ); + crypto_req_done, ); sg_init_one(, oname->name, cryptlen); skcipher_request_set_crypt(req, , , cryptlen, iv); /* Do the encryption */ - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - /* Request is being completed asynchronously; wait for it */ - wait_for_completion(); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), ); skcipher_request_free(req); if (res < 0) { printk_ratelimited(KERN_ERR @@ -110,7 +90,7 @@ static int fname_decrypt(struct inode *inode,
[PATCH v4 11/19] fscrypt: move to generic async completion
fscrypt starts several async. crypto ops and waiting for them to complete. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- fs/crypto/crypto.c | 28 fs/crypto/fname.c | 36 ++-- fs/crypto/fscrypt_private.h | 10 -- fs/crypto/keyinfo.c | 21 +++-- 4 files changed, 13 insertions(+), 82 deletions(-) diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index c7835df..80a3cad 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -126,21 +126,6 @@ struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags) } EXPORT_SYMBOL(fscrypt_get_ctx); -/** - * page_crypt_complete() - completion callback for page crypto - * @req: The asynchronous cipher request context - * @res: The result of the cipher operation - */ -static void page_crypt_complete(struct crypto_async_request *req, int res) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (res == -EINPROGRESS) - return; - ecr->res = res; - complete(>completion); -} - int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u64 lblk_num, struct page *src_page, struct page *dest_page, unsigned int len, @@ -151,7 +136,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u8 padding[FS_IV_SIZE - sizeof(__le64)]; } iv; struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct scatterlist dst, src; struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; @@ -179,7 +164,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, skcipher_request_set_callback( req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - page_crypt_complete, ); + crypto_req_done, ); sg_init_table(, 1); sg_set_page(, dest_page, len, offs); @@ -187,14 +172,9 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, sg_set_page(, src_page, len, offs); skcipher_request_set_crypt(req, , , len, ); if (rw == FS_DECRYPT) - res = crypto_skcipher_decrypt(req); + res = crypto_wait_req(crypto_skcipher_decrypt(req), ); else - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - BUG_ON(req->base.data != ); - wait_for_completion(); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), ); skcipher_request_free(req); if (res) { printk_ratelimited(KERN_ERR diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c index ad9f814..a80a0d3 100644 --- a/fs/crypto/fname.c +++ b/fs/crypto/fname.c @@ -15,21 +15,6 @@ #include "fscrypt_private.h" /** - * fname_crypt_complete() - completion callback for filename crypto - * @req: The asynchronous cipher request context - * @res: The result of the cipher operation - */ -static void fname_crypt_complete(struct crypto_async_request *req, int res) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (res == -EINPROGRESS) - return; - ecr->res = res; - complete(>completion); -} - -/** * fname_encrypt() - encrypt a filename * * The caller must have allocated sufficient memory for the @oname string. @@ -40,7 +25,7 @@ static int fname_encrypt(struct inode *inode, const struct qstr *iname, struct fscrypt_str *oname) { struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; int res = 0; @@ -76,17 +61,12 @@ static int fname_encrypt(struct inode *inode, } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - fname_crypt_complete, ); + crypto_req_done, ); sg_init_one(, oname->name, cryptlen); skcipher_request_set_crypt(req, , , cryptlen, iv); /* Do the encryption */ - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - /* Request is being completed asynchronously; wait for it */ - wait_for_completion(); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), ); skcipher_request_free(req); if (res < 0) { printk_ratelimited(KERN_ERR @@ -110,7 +90,7 @@ static int fname_decrypt(struct inode *inode,