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eliminate an unnecessary 8Kbyte bzero that was being done for each

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submitted operation

Submitted by:	Thor Lancelot Simon
Reviewed by:	jhb
Approved by:	re (jhb)
This commit is contained in:
Sam Leffler 2003-11-19 22:42:34 +00:00
parent 39330d77d4
commit 57053a10cf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=122908
1 changed files with 5 additions and 8 deletions
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13
sys/opencrypto/cryptodev.c
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@ -72,7 +72,7 @@ struct csession {
int mackeylen;
u_char tmp_mac[CRYPTO_MAX_MAC_LEN];
struct iovec iovec[UIO_MAXIOV];
struct iovec iovec;
struct uio uio;
int error;
};
@ -317,7 +317,7 @@ cryptodev_op(
{
struct cryptop *crp = NULL;
struct cryptodesc *crde = NULL, *crda = NULL;
int i, error;
int error;
if (cop->len > 256*1024-4)
return (E2BIG);
@ -325,18 +325,15 @@ cryptodev_op(
if (cse->txform && (cop->len % cse->txform->blocksize) != 0)
return (EINVAL);
bzero(&cse->uio, sizeof(cse->uio));
cse->uio.uio_iov = &cse->iovec;
cse->uio.uio_iovcnt = 1;
cse->uio.uio_resid = 0;
cse->uio.uio_offset = 0;
cse->uio.uio_resid = cop->len;
cse->uio.uio_segflg = UIO_SYSSPACE;
cse->uio.uio_rw = UIO_WRITE;
cse->uio.uio_td = td;
cse->uio.uio_iov = cse->iovec;
bzero(&cse->iovec, sizeof(cse->iovec));
cse->uio.uio_iov[0].iov_len = cop->len;
cse->uio.uio_iov[0].iov_base = malloc(cop->len, M_XDATA, M_WAITOK);
for (i = 0; i < cse->uio.uio_iovcnt; i++)
cse->uio.uio_resid += cse->uio.uio_iov[0].iov_len;
crp = crypto_getreq((cse->txform != NULL) + (cse->thash != NULL));
if (crp == NULL) {