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block: fix comment in blk-iopoll.c

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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2009-08-06 20:53:23 +02:00
parent 37867ae7c5
commit fca51d64c5
1 changed files with 6 additions and 3 deletions
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9
block/blk-iopoll.c
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@ -115,9 +115,12 @@ static void blk_iopoll_softirq(struct softirq_action *h)
local_irq_disable();
/* Drivers must not modify the NAPI state if they
* consume the entire weight. In such cases this code
* still "owns" the NAPI instance and therefore can
/*
* Drivers must not modify the iopoll state, if they
* consume their assigned weight (or more, some drivers can't
* easily just stop processing, they have to complete an
* entire mask of commands).In such cases this code
* still "owns" the iopoll instance and therefore can
* move the instance around on the list at-will.
*/
if (work >= weight) {