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change identical and "programming error" panic("mcopy*")'s into

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more verbose messages using KASSERT.

Reviewed by: eivind, des
This commit is contained in:
Alfred Perlstein 1999-10-13 09:55:42 +00:00
parent 4c04fa4c1a
commit e0a653ddba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=52201
1 changed files with 9 additions and 12 deletions
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21
sys/kern/uipc_mbuf.c
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@ -437,13 +437,12 @@ m_copym(m, off0, len, wait)
struct mbuf *top;
int copyhdr = 0;
if (off < 0 || len < 0)
panic("m_copym");
KASSERT(off >= 0, ("m_copym, negative off %d", off));
KASSERT(len >= 0, ("m_copym, negative len %d", len));
if (off == 0 && m->m_flags & M_PKTHDR)
copyhdr = 1;
while (off > 0) {
if (m == 0)
panic("m_copym");
KASSERT(m != NULL, ("m_copym, offset > size of mbuf chain"));
if (off < m->m_len)
break;
off -= m->m_len;
@ -453,8 +452,8 @@ m_copym(m, off0, len, wait)
top = 0;
while (len > 0) {
if (m == 0) {
if (len != M_COPYALL)
panic("m_copym");
KASSERT(len == M_COPYALL,
("m_copym, length > size of mbuf chain"));
break;
}
MGET(n, wait, m->m_type);
@ -573,19 +572,17 @@ m_copydata(m, off, len, cp)
{
register unsigned count;
if (off < 0 || len < 0)
panic("m_copydata");
KASSERT(off >= 0, ("m_copydata, negative off %d", off));
KASSERT(len >= 0, ("m_copydata, negative len %d", len));
while (off > 0) {
if (m == 0)
panic("m_copydata");
KASSERT(m != NULL, ("m_copydata, offset > size of mbuf chain"));
if (off < m->m_len)
break;
off -= m->m_len;
m = m->m_next;
}
while (len > 0) {
if (m == 0)
panic("m_copydata");
KASSERT(m != NULL, ("m_copydata, length > size of mbuf chain"));
count = min(m->m_len - off, len);
bcopy(mtod(m, caddr_t) + off, cp, count);
len -= count;