| Message ID | 1642497464-1847-1-git-send-email-zhenggy@chinatelecom.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | aio: inform block layer of how many requests we are submitting | expand |
On Tue, Jan 18, 2022 at 05:17:44PM +0800, GuoYong Zheng wrote: > After commit 47c122e35d7e ("block: pre-allocate requests if plug is > started and is a batch"), block layer can make smarter request allocation > if it know how many requests it need to submit, so switch to use > blk_start_plug_nr_ios here to pass the number of requests we will submit. Looks good: Reviewed-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/aio.c b/fs/aio.c index 4ceba13..7c4935e 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -2071,7 +2071,7 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, nr = ctx->nr_events; if (nr > AIO_PLUG_THRESHOLD) - blk_start_plug(&plug); + blk_start_plug_nr_ios(&plug, nr); for (i = 0; i < nr; i++) { struct iocb __user *user_iocb;
After commit 47c122e35d7e ("block: pre-allocate requests if plug is started and is a batch"), block layer can make smarter request allocation if it know how many requests it need to submit, so switch to use blk_start_plug_nr_ios here to pass the number of requests we will submit. Signed-off-by: GuoYong Zheng <zhenggy@chinatelecom.cn> --- fs/aio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)