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Document uma_zalloc() behaviour.

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This commit is contained in:
Jeroen Ruigrok van der Werven 2002-04-30 14:26:22 +00:00
parent 25923b9799
commit 1437c79a4a
1 changed files with 15 additions and 2 deletions
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17
share/man/man9/zone.9
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@ -79,10 +79,23 @@ fields mentioned above.
.Pp
To allocate an item from a zone, simply call
.Fn uma_zalloc
with a pointer to that zone; it will return a pointer to an item, or
with a pointer to that zone
and set the
.Fa wait
argument to
.Dv M_WAITOK
or
.Dv M_NOWAIT
depending on whether or not to block while allocating memory for this zone,
should we run out.
It will return a pointer to an item if successful,
or
.Dv NULL
in the rare case where all items in the zone are in use and the
allocator is unable to grow the zone.
allocator is unable to grow the zone
or when
.Dv M_NOWAIT
is specified.
.Pp
Items are released back to the zone from which they were allocated by
calling