[PKT_SCHED]: GRED: Use a central table definition change procedure

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Introduces a function gred_change_table_def() acting as a central
point to change the table definition.

Adds missing validations for table definition: MAX_DPs > DPs > 0
and def_DP < DPs thus fixing possible invalid memory reference
oopses. Only root could do it but having a typo crashing the
machine is a bit hard.

Adds missing locking while changing the table definition, the
operation of changing the number of DPs and removing shadowed VQs
may not be interrupted by a dequeue.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>

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Thomas Graf 2005-11-05 21:14:13 +01:00 • committed by Thomas Graf

parent e06368221c

commit 6639607ed9

1 changed files with 61 additions and 52 deletions

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115

net/sched/sch_gred.c

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