freebsd with flexible iflib nic queues
a705398be0
For an object type, we maintain a variable mb_mapfull. It is 0 by default and is only raised to 1 in one place: when an mb_pop_cont() fails for the first time, on the assumption that the reason for the failure is due to the underlying map for the object (e.g. clust_map, mbuf_map) being exhausted. Problem and Changes: Change how we define "mb_mapfull." It now means: "set to 1 when the first mb_pop_cont() fails only in the kmem_malloc()-ing of the object, and only if the call was with the M_TRYWAIT flag." This is a more conservative definition and should avoid odd [but theoretically possible] situations from occuring. i.e. we had set mb_mapfull to 1 thinking the map for the object was actually exhausted when we _actually_ failed in malloc()ing the space for the bucket structure managing the objects in the page we're allocating. |
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| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| kerberosIV | ||
| lib | ||
| libexec | ||
| release | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.upgrade | ||
| README | ||
| UPDATING | ||
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