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Changed NM_BRIDGES to 256 #421

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Changed NM_BRIDGES to 256 #421

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nanjj
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@nanjj nanjj commented Dec 26, 2017

Added GTAGS to .gitignore and fixed vale port max not 254 issue #398

To NM_BRIDGES default to 256 because the original default value 8
is too small for even test, and 256 is OK for hypervisor usage.

Added GTAGS to .gitignore and fixed vale port max not 254 issue luigirizzo#398
@@ -752,8 +751,7 @@ netmap_get_bdg_na(struct nmreq *nmr, struct netmap_adapter **na,
if (!create)
return ENXIO;
/* yes we should, see if we have space to attach entries */
needed = 2; /* in some cases we only need 1 */
if (b->bdg_active_ports + needed >= NM_BDG_MAXPORTS) {
if (b->bdg_active_ports >= NM_BDG_MAXPORTS) {
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The previous check was too conservative: >= should have been > and needed should have been computed more precisely.

Your change, however, is wrong. There are cases when we need two slots. See where cand2 is actually used.

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