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| author | Bob Liu <bob.liu@oracle.com> | 2015-06-03 08:40:01 +0300 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2015-06-06 04:14:05 +0300 |
| commit | 69b91ede5cab843dcf345c28bd1f4b5a99dacd9b (patch) | |
| tree | 542bccc08bb0281d7a2474dc48021c5b4917e038 /drivers/block/xen-blkback/common.h | |
| parent | a5768aa887fb636f0cc4c83a2f1242506aaf50f6 (diff) | |
| download | linux-69b91ede5cab843dcf345c28bd1f4b5a99dacd9b.tar.xz | |
drivers: xen-blkback: delay pending_req allocation to connect_ring
This is a pre-patch for multi-page ring feature.
In connect_ring, we can know exactly how many pages are used for the shared
ring, delay pending_req allocation here so that we won't waste too much memory.
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkback/common.h')
| -rw-r--r-- | drivers/block/xen-blkback/common.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index f620b5d3f77c..043f13b7b7b0 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -248,7 +248,7 @@ struct backend_info; #define PERSISTENT_GNT_WAS_ACTIVE 1 /* Number of requests that we can fit in a ring */ -#define XEN_BLKIF_REQS 32 +#define XEN_BLKIF_REQS_PER_PAGE 32 struct persistent_gnt { struct page *page; |