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authorJens Axboe <jens.axboe@oracle.com>2009-08-06 14:53:23 -0400
committerJens Axboe <jens.axboe@oracle.com>2009-09-11 08:33:32 -0400
commitfca51d64c5baf64604bc1edc5c5f0e7ed176322f (patch)
treed9662eea84a8be4555bad3f12f5dd2cb26305302
parent37867ae7c549c58d44337e27738577ed8b7cd753 (diff)
block: fix comment in blk-iopoll.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
-rw-r--r--block/blk-iopoll.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
index 0671d4614b08..b9b32652292c 100644
--- a/block/blk-iopoll.c
+++ b/block/blk-iopoll.c
@@ -115,9 +115,12 @@ static void blk_iopoll_softirq(struct softirq_action *h)
115 115
116 local_irq_disable(); 116 local_irq_disable();
117 117
118 /* Drivers must not modify the NAPI state if they 118 /*
119 * consume the entire weight. In such cases this code 119 * Drivers must not modify the iopoll state, if they
120 * still "owns" the NAPI instance and therefore can 120 * consume their assigned weight (or more, some drivers can't
121 * easily just stop processing, they have to complete an
122 * entire mask of commands).In such cases this code
123 * still "owns" the iopoll instance and therefore can
121 * move the instance around on the list at-will. 124 * move the instance around on the list at-will.
122 */ 125 */
123 if (work >= weight) { 126 if (work >= weight) {