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author | Benjamin LaHaise <bcrl@kvack.org> | 2014-07-14 13:14:27 -0400 |
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committer | Benjamin LaHaise <bcrl@kvack.org> | 2014-07-14 13:14:27 -0400 |
commit | 6e830d53717cf3d5c30c1afce3773ef97e436cd9 (patch) | |
tree | 9376a0424b8f9fff12d107aa2498e775da20e85d /net/core/iovec.c | |
parent | 855ef0dec7271ff7be7381feaaf3f4aed80bd503 (diff) | |
parent | 263782c1c95bbddbb022dc092fd89a36bb8d5577 (diff) | |
download | op-kernel-dev-6e830d53717cf3d5c30c1afce3773ef97e436cd9.zip op-kernel-dev-6e830d53717cf3d5c30c1afce3773ef97e436cd9.tar.gz |
Merge ../aio-fixes
Diffstat (limited to 'net/core/iovec.c')
-rw-r--r-- | net/core/iovec.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/net/core/iovec.c b/net/core/iovec.c index b618694..827dd6b 100644 --- a/net/core/iovec.c +++ b/net/core/iovec.c @@ -75,61 +75,6 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a } /* - * Copy kernel to iovec. Returns -EFAULT on error. - */ - -int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata, - int offset, int len) -{ - int copy; - for (; len > 0; ++iov) { - /* Skip over the finished iovecs */ - if (unlikely(offset >= iov->iov_len)) { - offset -= iov->iov_len; - continue; - } - copy = min_t(unsigned int, iov->iov_len - offset, len); - if (copy_to_user(iov->iov_base + offset, kdata, copy)) - return -EFAULT; - offset = 0; - kdata += copy; - len -= copy; - } - - return 0; -} -EXPORT_SYMBOL(memcpy_toiovecend); - -/* - * Copy iovec to kernel. Returns -EFAULT on error. - */ - -int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, - int offset, int len) -{ - /* Skip over the finished iovecs */ - while (offset >= iov->iov_len) { - offset -= iov->iov_len; - iov++; - } - - while (len > 0) { - u8 __user *base = iov->iov_base + offset; - int copy = min_t(unsigned int, len, iov->iov_len - offset); - - offset = 0; - if (copy_from_user(kdata, base, copy)) - return -EFAULT; - len -= copy; - kdata += copy; - iov++; - } - - return 0; -} -EXPORT_SYMBOL(memcpy_fromiovecend); - -/* * And now for the all-in-one: copy and checksum from a user iovec * directly to a datagram * Calls to csum_partial but the last must be in 32 bit chunks |