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Make m_get2() never use clusters that are bigger than PAGE_SIZE.

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Requested by:	andre, jhb
Sponsored by:	Nginx, Inc.
This commit is contained in:
Gleb Smirnoff 2013-03-15 10:15:07 +00:00
parent 83ad5a8628
commit 3112ae7644
1 changed files with 3 additions and 13 deletions
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16
sys/kern/uipc_mbuf.c
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@ -92,7 +92,6 @@ m_get2(int size, int how, short type, int flags)
{
struct mb_args args;
struct mbuf *m, *n;
uma_zone_t zone;
args.flags = flags;
args.type = type;
@ -101,24 +100,15 @@ m_get2(int size, int how, short type, int flags)
return (uma_zalloc_arg(zone_mbuf, &args, how));
if (size <= MCLBYTES)
return (uma_zalloc_arg(zone_pack, &args, how));
if (size > MJUM16BYTES)
if (size > MJUMPAGESIZE)
return (NULL);
m = uma_zalloc_arg(zone_mbuf, &args, how);
if (m == NULL)
return (NULL);
#if MJUMPAGESIZE != MCLBYTES
if (size <= MJUMPAGESIZE)
zone = zone_jumbop;
else
#endif
if (size <= MJUM9BYTES)
zone = zone_jumbo9;
else
zone = zone_jumbo16;
n = uma_zalloc_arg(zone, m, how);
n = uma_zalloc_arg(zone_jumbop, m, how);
if (n == NULL) {
uma_zfree(zone_mbuf, m);
return (NULL);