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[t:3925], make change per discussion with engineers

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git-svn-id: file:///svn/toku/tokudb@37948 c7de825b-a66e-492c-adef-691d508d4ae1
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Zardosht Kasheff 2013-04-17 00:00:00 -04:00 • committed by Yoni Fogel
parent 6288f0660f
commit ce0a76d6a7
1 changed files with 8 additions and 0 deletions
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8
newbrt/cachetable.c
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@ -2411,6 +2411,14 @@ int toku_cachetable_get_and_pin_nonblocking (
{
CACHETABLE ct = cf->cachetable;
cachetable_lock(ct);
//
// Even though there is a risk that cachetable_wait_write may wait on a bunch
// of I/O to complete, we call this with the ydb lock held, because if we
// are in this situation where a lot of data is being evicted on writer threads
// then we are in a screw case anyway, so it should be ok to hold the ydb lock,
// until a bunch of data is written out.
//
cachetable_wait_write(ct);
int count = 0;
PAIR p;
for (p = ct->table[fullhash&(ct->table_size-1)]; p; p = p->hash_chain) {